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</pre><pre class='rust '>
<span class='comment'>// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT</span>
<span class='comment'>// file at the top-level directory of this distribution and at</span>
<span class='comment'>// http://rust-lang.org/COPYRIGHT.</span>
<span class='comment'>//</span>
<span class='comment'>// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span>
<span class='comment'>// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span>
<span class='comment'>// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your</span>
<span class='comment'>// option. This file may not be copied, modified, or distributed</span>
<span class='comment'>// except according to those terms.</span>
<span class='comment'>// FIXME(Gankro): BitVec and BitSet are very tightly coupled. Ideally (for</span>
<span class='comment'>// maintenance), they should be in separate files/modules, with BitSet only</span>
<span class='comment'>// using BitVec's public API. This will be hard for performance though, because</span>
<span class='comment'>// `BitVec` will not want to leak its internal representation while its internal</span>
<span class='comment'>// representation as `u32`s must be assumed for best performance.</span>
<span class='comment'>// FIXME(tbu-): `BitVec`'s methods shouldn't be `union`, `intersection`, but</span>
<span class='comment'>// rather `or` and `and`.</span>
<span class='comment'>// (1) Be careful, most things can overflow here because the amount of bits in</span>
<span class='comment'>// memory can overflow `usize`.</span>
<span class='comment'>// (2) Make sure that the underlying vector has no excess length:</span>
<span class='comment'>// E. g. `nbits == 16`, `storage.len() == 2` would be excess length,</span>
<span class='comment'>// because the last word isn't used at all. This is important because some</span>
<span class='comment'>// methods rely on it (for *CORRECTNESS*).</span>
<span class='comment'>// (3) Make sure that the unused bits in the last word are zeroed out, again</span>
<span class='comment'>// other methods rely on it for *CORRECTNESS*.</span>
<span class='comment'>// (4) `BitSet` is tightly coupled with `BitVec`, so any changes you make in</span>
<span class='comment'>// `BitVec` will need to be reflected in `BitSet`.</span>
<span class='doccomment'>//! Collections implemented with bit vectors.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! # Examples</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! This is a simple example of the [Sieve of Eratosthenes][sieve]</span>
<span class='doccomment'>//! which calculates prime numbers up to a given limit.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! [sieve]: http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! ```</span>
<span class='doccomment'>//! use bit_vec::BitVec;</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! let max_prime = 10000;</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! // Store the primes as a BitVec</span>
<span class='doccomment'>//! let primes = {</span>
<span class='doccomment'>//! // Assume all numbers are prime to begin, and then we</span>
<span class='doccomment'>//! // cross off non-primes progressively</span>
<span class='doccomment'>//! let mut bv = BitVec::from_elem(max_prime, true);</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! // Neither 0 nor 1 are prime</span>
<span class='doccomment'>//! bv.set(0, false);</span>
<span class='doccomment'>//! bv.set(1, false);</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! for i in 2.. 1 + (max_prime as f64).sqrt() as usize {</span>
<span class='doccomment'>//! // if i is a prime</span>
<span class='doccomment'>//! if bv[i] {</span>
<span class='doccomment'>//! // Mark all multiples of i as non-prime (any multiples below i * i</span>
<span class='doccomment'>//! // will have been marked as non-prime previously)</span>
<span class='doccomment'>//! for j in i.. {</span>
<span class='doccomment'>//! if i * j >= max_prime {</span>
<span class='doccomment'>//! break;</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//! bv.set(i * j, false)</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//! bv</span>
<span class='doccomment'>//! };</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! // Simple primality tests below our max bound</span>
<span class='doccomment'>//! let print_primes = 20;</span>
<span class='doccomment'>//! print!("The primes below {} are: ", print_primes);</span>
<span class='doccomment'>//! for x in 0..print_primes {</span>
<span class='doccomment'>//! if primes.get(x).unwrap_or(false) {</span>
<span class='doccomment'>//! print!("{} ", x);</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//! println!("");</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! let num_primes = primes.iter().filter(|x| *x).count();</span>
<span class='doccomment'>//! println!("There are {} primes below {}", num_primes, max_prime);</span>
<span class='doccomment'>//! assert_eq!(num_primes, 1_229);</span>
<span class='doccomment'>//! ```</span>
<span class='attribute'>#<span class='op'>!</span>[<span class='ident'>cfg_attr</span>(<span class='ident'>all</span>(<span class='ident'>test</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"nightly"</span>), <span class='ident'>feature</span>(<span class='ident'>test</span>))]</span>
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>all</span>(<span class='ident'>test</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"nightly"</span>))]</span> <span class='kw'>extern</span> <span class='kw'>crate</span> <span class='ident'>test</span>;
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>all</span>(<span class='ident'>test</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"nightly"</span>))]</span> <span class='kw'>extern</span> <span class='kw'>crate</span> <span class='ident'>rand</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>cmp</span>::<span class='ident'>Ordering</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>cmp</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>fmt</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>hash</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::{<span class='ident'>Chain</span>, <span class='ident'>Enumerate</span>, <span class='ident'>Repeat</span>, <span class='ident'>Skip</span>, <span class='ident'>Take</span>, <span class='ident'>repeat</span>};
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::<span class='ident'>FromIterator</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>slice</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::{<span class='ident'>u8</span>, <span class='ident'>usize</span>};
<span class='kw'>type</span> <span class='ident'>MutBlocks</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> <span class='op'>=</span> <span class='ident'>slice</span>::<span class='ident'>IterMut</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span>;
<span class='kw'>type</span> <span class='ident'>MatchWords</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> <span class='op'>=</span> <span class='ident'>Chain</span><span class='op'><</span><span class='ident'>Enumerate</span><span class='op'><</span><span class='ident'>Blocks</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>>></span>, <span class='ident'>Skip</span><span class='op'><</span><span class='ident'>Take</span><span class='op'><</span><span class='ident'>Enumerate</span><span class='op'><</span><span class='ident'>Repeat</span><span class='op'><</span><span class='ident'>B</span><span class='op'>>></span><span class='op'>>></span><span class='op'>></span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>ops</span>::<span class='op'>*</span>;
<span class='doccomment'>/// Abstracts over a pile of bits (basically unsigned primitives)</span>
<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>BitBlock</span>:
<span class='ident'>Copy</span> <span class='op'>+</span>
<span class='ident'>Add</span><span class='op'><</span><span class='kw'>Self</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>Sub</span><span class='op'><</span><span class='kw'>Self</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>Shl</span><span class='op'><</span><span class='ident'>usize</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>Shr</span><span class='op'><</span><span class='ident'>usize</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>Not</span><span class='op'><</span><span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>BitAnd</span><span class='op'><</span><span class='kw'>Self</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>BitOr</span><span class='op'><</span><span class='kw'>Self</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>BitXor</span><span class='op'><</span><span class='kw'>Self</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>Rem</span><span class='op'><</span><span class='kw'>Self</span>, <span class='ident'>Output</span><span class='op'>=</span><span class='kw'>Self</span><span class='op'>></span> <span class='op'>+</span>
<span class='ident'>Eq</span> <span class='op'>+</span>
<span class='ident'>Ord</span> <span class='op'>+</span>
<span class='ident'>hash</span>::<span class='ident'>Hash</span> <span class='op'>+</span>
{
<span class='doccomment'>/// How many bits it has</span>
<span class='kw'>fn</span> <span class='ident'>bits</span>() <span class='op'>-></span> <span class='ident'>usize</span>;
<span class='doccomment'>/// How many bytes it has</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>bytes</span>() <span class='op'>-></span> <span class='ident'>usize</span> { <span class='ident'>Self</span>::<span class='ident'>bits</span>() <span class='op'>/</span> <span class='number'>8</span> }
<span class='doccomment'>/// Convert a byte into this type (lowest-order bits set)</span>
<span class='kw'>fn</span> <span class='ident'>from_byte</span>(<span class='ident'>byte</span>: <span class='ident'>u8</span>) <span class='op'>-></span> <span class='kw'>Self</span>;
<span class='doccomment'>/// Count the number of 1's in the bitwise repr</span>
<span class='kw'>fn</span> <span class='ident'>count_ones</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span>;
<span class='doccomment'>/// Get `0`</span>
<span class='kw'>fn</span> <span class='ident'>zero</span>() <span class='op'>-></span> <span class='kw'>Self</span>;
<span class='doccomment'>/// Get `1`</span>
<span class='kw'>fn</span> <span class='ident'>one</span>() <span class='op'>-></span> <span class='kw'>Self</span>;
}
<span class='macro'>macro_rules</span><span class='macro'>!</span> <span class='ident'>bit_block_impl</span> {
($((<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>t</span>: <span class='ident'>ty</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>size</span>: <span class='ident'>expr</span>)),<span class='op'>*</span>) <span class='op'>=></span> ($(
<span class='kw'>impl</span> <span class='ident'>BitBlock</span> <span class='kw'>for</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>t</span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>bits</span>() <span class='op'>-></span> <span class='ident'>usize</span> { <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>size</span> }
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>from_byte</span>(<span class='ident'>byte</span>: <span class='ident'>u8</span>) <span class='op'>-></span> <span class='kw'>Self</span> { <span class='ident'>byte</span> <span class='kw'>as</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>t</span> }
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>count_ones</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span> { <span class='self'>self</span>.<span class='ident'>count_ones</span>() <span class='kw'>as</span> <span class='ident'>usize</span> }
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>one</span>() <span class='op'>-></span> <span class='kw'>Self</span> { <span class='number'>1</span> }
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>zero</span>() <span class='op'>-></span> <span class='kw'>Self</span> { <span class='number'>0</span> }
}
)<span class='op'>*</span>)
}
<span class='macro'>bit_block_impl</span><span class='macro'>!</span>{
(<span class='ident'>u8</span>, <span class='number'>8</span>),
(<span class='ident'>u16</span>, <span class='number'>16</span>),
(<span class='ident'>u32</span>, <span class='number'>32</span>),
(<span class='ident'>u64</span>, <span class='number'>64</span>),
(<span class='ident'>usize</span>, <span class='ident'>std</span>::<span class='ident'>mem</span>::<span class='ident'>size_of</span>::<span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>() <span class='op'>*</span> <span class='number'>8</span>)
}
<span class='kw'>fn</span> <span class='ident'>reverse_bits</span>(<span class='ident'>byte</span>: <span class='ident'>u8</span>) <span class='op'>-></span> <span class='ident'>u8</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>result</span> <span class='op'>=</span> <span class='number'>0</span>;
<span class='kw'>for</span> <span class='ident'>i</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='ident'>u8</span>::<span class='ident'>bits</span>() {
<span class='ident'>result</span> <span class='op'>=</span> <span class='ident'>result</span> <span class='op'>|</span> ((<span class='ident'>byte</span> <span class='op'>>></span> <span class='ident'>i</span>) <span class='kw-2'>&</span> <span class='number'>1</span>) <span class='op'><<</span> (<span class='ident'>u8</span>::<span class='ident'>bits</span>() <span class='op'>-</span> <span class='number'>1</span> <span class='op'>-</span> <span class='ident'>i</span>);
}
<span class='ident'>result</span>
}
<span class='kw'>static</span> <span class='ident'>TRUE</span>: <span class='ident'>bool</span> <span class='op'>=</span> <span class='boolval'>true</span>;
<span class='kw'>static</span> <span class='ident'>FALSE</span>: <span class='ident'>bool</span> <span class='op'>=</span> <span class='boolval'>false</span>;
<span class='doccomment'>/// The bitvector type.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(10, false);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// // insert all primes less than 10</span>
<span class='doccomment'>/// bv.set(2, true);</span>
<span class='doccomment'>/// bv.set(3, true);</span>
<span class='doccomment'>/// bv.set(5, true);</span>
<span class='doccomment'>/// bv.set(7, true);</span>
<span class='doccomment'>/// println!("{:?}", bv);</span>
<span class='doccomment'>/// println!("total bits set to true: {}", bv.iter().filter(|x| *x).count());</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// // flip all values in bitvector, producing non-primes less than 10</span>
<span class='doccomment'>/// bv.negate();</span>
<span class='doccomment'>/// println!("{:?}", bv);</span>
<span class='doccomment'>/// println!("total bits set to true: {}", bv.iter().filter(|x| *x).count());</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// // reset bitvector to empty</span>
<span class='doccomment'>/// bv.clear();</span>
<span class='doccomment'>/// println!("{:?}", bv);</span>
<span class='doccomment'>/// println!("total bits set to true: {}", bv.iter().filter(|x| *x).count());</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>=</span><span class='ident'>u32</span><span class='op'>></span> {
<span class='doccomment'>/// Internal representation of the bit vector</span>
<span class='ident'>storage</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span>,
<span class='doccomment'>/// The number of valid bits in the internal representation</span>
<span class='ident'>nbits</span>: <span class='ident'>usize</span>
}
<span class='comment'>// FIXME(Gankro): NopeNopeNopeNopeNope (wait for IndexGet to be a thing)</span>
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Index</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>type</span> <span class='ident'>Output</span> <span class='op'>=</span> <span class='ident'>bool</span>;
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>index</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>i</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='ident'>bool</span> {
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>get</span>(<span class='ident'>i</span>).<span class='ident'>expect</span>(<span class='string'>"index out of bounds"</span>) {
<span class='kw-2'>&</span><span class='ident'>TRUE</span>
} <span class='kw'>else</span> {
<span class='kw-2'>&</span><span class='ident'>FALSE</span>
}
}
}
<span class='doccomment'>/// Computes how many blocks are needed to store that many bits</span>
<span class='kw'>fn</span> <span class='ident'>blocks_for_bits</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span>(<span class='ident'>bits</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='ident'>usize</span> {
<span class='comment'>// If we want 17 bits, dividing by 32 will produce 0. So we add 1 to make sure we</span>
<span class='comment'>// reserve enough. But if we want exactly a multiple of 32, this will actually allocate</span>
<span class='comment'>// one too many. So we need to check if that's the case. We can do that by computing if</span>
<span class='comment'>// bitwise AND by `32 - 1` is 0. But LLVM should be able to optimize the semantically</span>
<span class='comment'>// superior modulo operator on a power of two to this.</span>
<span class='comment'>//</span>
<span class='comment'>// Note that we can technically avoid this branch with the expression</span>
<span class='comment'>// `(nbits + U32_BITS - 1) / 32::BITS`, but if nbits is almost usize::MAX this will overflow.</span>
<span class='kw'>if</span> <span class='ident'>bits</span> <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>() <span class='op'>==</span> <span class='number'>0</span> {
<span class='ident'>bits</span> <span class='op'>/</span> <span class='ident'>B</span>::<span class='ident'>bits</span>()
} <span class='kw'>else</span> {
<span class='ident'>bits</span> <span class='op'>/</span> <span class='ident'>B</span>::<span class='ident'>bits</span>() <span class='op'>+</span> <span class='number'>1</span>
}
}
<span class='doccomment'>/// Computes the bitmask for the final word of the vector</span>
<span class='kw'>fn</span> <span class='ident'>mask_for_bits</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span>(<span class='ident'>bits</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='ident'>B</span> {
<span class='comment'>// Note especially that a perfect multiple of U32_BITS should mask all 1s.</span>
(<span class='op'>!</span><span class='ident'>B</span>::<span class='ident'>zero</span>()) <span class='op'>>></span> ((<span class='ident'>B</span>::<span class='ident'>bits</span>() <span class='op'>-</span> <span class='ident'>bits</span> <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>()) <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>())
}
<span class='kw'>type</span> <span class='ident'>B</span> <span class='op'>=</span> <span class='ident'>u32</span>;
<span class='kw'>impl</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>u32</span><span class='op'>></span> {
<span class='doccomment'>/// Creates an empty `BitVec`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>/// let mut bv = BitVec::new();</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>() <span class='op'>-></span> <span class='kw'>Self</span> {
<span class='ident'>Default</span>::<span class='ident'>default</span>()
}
<span class='doccomment'>/// Creates a `BitVec` that holds `nbits` elements, setting each element</span>
<span class='doccomment'>/// to `bit`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(10, false);</span>
<span class='doccomment'>/// assert_eq!(bv.len(), 10);</span>
<span class='doccomment'>/// for x in bv.iter() {</span>
<span class='doccomment'>/// assert_eq!(x, false);</span>
<span class='doccomment'>/// }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_elem</span>(<span class='ident'>nbits</span>: <span class='ident'>usize</span>, <span class='ident'>bit</span>: <span class='ident'>bool</span>) <span class='op'>-></span> <span class='kw'>Self</span> {
<span class='kw'>let</span> <span class='ident'>nblocks</span> <span class='op'>=</span> <span class='ident'>blocks_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='ident'>nbits</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>bit_vec</span> <span class='op'>=</span> <span class='ident'>BitVec</span> {
<span class='ident'>storage</span>: <span class='macro'>vec</span><span class='macro'>!</span>[<span class='kw'>if</span> <span class='ident'>bit</span> { <span class='op'>!</span><span class='ident'>B</span>::<span class='ident'>zero</span>() } <span class='kw'>else</span> { <span class='ident'>B</span>::<span class='ident'>zero</span>() }; <span class='ident'>nblocks</span>],
<span class='ident'>nbits</span>: <span class='ident'>nbits</span>
};
<span class='ident'>bit_vec</span>.<span class='ident'>fix_last_block</span>();
<span class='ident'>bit_vec</span>
}
<span class='doccomment'>/// Constructs a new, empty `BitVec` with the specified capacity.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// The bitvector will be able to hold at least `capacity` bits without</span>
<span class='doccomment'>/// reallocating. If `capacity` is 0, it will not allocate.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// It is important to note that this function does not specify the</span>
<span class='doccomment'>/// *length* of the returned bitvector, but only the *capacity*.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>with_capacity</span>(<span class='ident'>nbits</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='kw'>Self</span> {
<span class='ident'>BitVec</span> {
<span class='ident'>storage</span>: <span class='ident'>Vec</span>::<span class='ident'>with_capacity</span>(<span class='ident'>blocks_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='ident'>nbits</span>)),
<span class='ident'>nbits</span>: <span class='number'>0</span>,
}
}
<span class='doccomment'>/// Transforms a byte-vector into a `BitVec`. Each byte becomes eight bits,</span>
<span class='doccomment'>/// with the most significant bits of each byte coming first. Each</span>
<span class='doccomment'>/// bit becomes `true` if equal to 1 or `false` if equal to 0.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let bv = BitVec::from_bytes(&[0b10100000, 0b00010010]);</span>
<span class='doccomment'>/// assert!(bv.eq_vec(&[true, false, true, false,</span>
<span class='doccomment'>/// false, false, false, false,</span>
<span class='doccomment'>/// false, false, false, true,</span>
<span class='doccomment'>/// false, false, true, false]));</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_bytes</span>(<span class='ident'>bytes</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) <span class='op'>-></span> <span class='kw'>Self</span> {
<span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>bytes</span>.<span class='ident'>len</span>().<span class='ident'>checked_mul</span>(<span class='ident'>u8</span>::<span class='ident'>bits</span>()).<span class='ident'>expect</span>(<span class='string'>"capacity overflow"</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>bit_vec</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>with_capacity</span>(<span class='ident'>len</span>);
<span class='kw'>let</span> <span class='ident'>complete_words</span> <span class='op'>=</span> <span class='ident'>bytes</span>.<span class='ident'>len</span>() <span class='op'>/</span> <span class='ident'>B</span>::<span class='ident'>bytes</span>();
<span class='kw'>let</span> <span class='ident'>extra_bytes</span> <span class='op'>=</span> <span class='ident'>bytes</span>.<span class='ident'>len</span>() <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bytes</span>();
<span class='ident'>bit_vec</span>.<span class='ident'>nbits</span> <span class='op'>=</span> <span class='ident'>len</span>;
<span class='kw'>for</span> <span class='ident'>i</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='ident'>complete_words</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>accumulator</span> <span class='op'>=</span> <span class='ident'>B</span>::<span class='ident'>zero</span>();
<span class='kw'>for</span> <span class='ident'>idx</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='ident'>B</span>::<span class='ident'>bytes</span>() {
<span class='ident'>accumulator</span> <span class='op'>=</span> <span class='ident'>accumulator</span> <span class='op'>|</span>
(<span class='ident'>B</span>::<span class='ident'>from_byte</span>(<span class='ident'>reverse_bits</span>(<span class='ident'>bytes</span>[<span class='ident'>i</span> <span class='op'>*</span> <span class='ident'>B</span>::<span class='ident'>bytes</span>() <span class='op'>+</span> <span class='ident'>idx</span>])) <span class='op'><<</span> (<span class='ident'>idx</span> <span class='op'>*</span> <span class='number'>8</span>))
}
<span class='ident'>bit_vec</span>.<span class='ident'>storage</span>.<span class='ident'>push</span>(<span class='ident'>accumulator</span>);
}
<span class='kw'>if</span> <span class='ident'>extra_bytes</span> <span class='op'>></span> <span class='number'>0</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>last_word</span> <span class='op'>=</span> <span class='ident'>B</span>::<span class='ident'>zero</span>();
<span class='kw'>for</span> (<span class='ident'>i</span>, <span class='kw-2'>&</span><span class='ident'>byte</span>) <span class='kw'>in</span> <span class='ident'>bytes</span>[<span class='ident'>complete_words</span> <span class='op'>*</span> <span class='ident'>B</span>::<span class='ident'>bytes</span>()..].<span class='ident'>iter</span>().<span class='ident'>enumerate</span>() {
<span class='ident'>last_word</span> <span class='op'>=</span> <span class='ident'>last_word</span> <span class='op'>|</span>
(<span class='ident'>B</span>::<span class='ident'>from_byte</span>(<span class='ident'>reverse_bits</span>(<span class='ident'>byte</span>)) <span class='op'><<</span> (<span class='ident'>i</span> <span class='op'>*</span> <span class='number'>8</span>));
}
<span class='ident'>bit_vec</span>.<span class='ident'>storage</span>.<span class='ident'>push</span>(<span class='ident'>last_word</span>);
}
<span class='ident'>bit_vec</span>
}
<span class='doccomment'>/// Creates a `BitVec` of the specified length where the value at each index</span>
<span class='doccomment'>/// is `f(index)`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let bv = BitVec::from_fn(5, |i| { i % 2 == 0 });</span>
<span class='doccomment'>/// assert!(bv.eq_vec(&[true, false, true, false, true]));</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_fn</span><span class='op'><</span><span class='ident'>F</span><span class='op'>></span>(<span class='ident'>len</span>: <span class='ident'>usize</span>, <span class='kw-2'>mut</span> <span class='ident'>f</span>: <span class='ident'>F</span>) <span class='op'>-></span> <span class='kw'>Self</span>
<span class='kw'>where</span> <span class='ident'>F</span>: <span class='ident'>FnMut</span>(<span class='ident'>usize</span>) <span class='op'>-></span> <span class='ident'>bool</span>
{
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>bit_vec</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='ident'>len</span>, <span class='boolval'>false</span>);
<span class='kw'>for</span> <span class='ident'>i</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='ident'>len</span> {
<span class='ident'>bit_vec</span>.<span class='ident'>set</span>(<span class='ident'>i</span>, <span class='ident'>f</span>(<span class='ident'>i</span>));
}
<span class='ident'>bit_vec</span>
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='doccomment'>/// Applies the given operation to the blocks of self and other, and sets</span>
<span class='doccomment'>/// self to be the result. This relies on the caller not to corrupt the</span>
<span class='doccomment'>/// last word.</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>process</span><span class='op'><</span><span class='ident'>F</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&</span><span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span>, <span class='kw-2'>mut</span> <span class='ident'>op</span>: <span class='ident'>F</span>) <span class='op'>-></span> <span class='ident'>bool</span>
<span class='kw'>where</span> <span class='ident'>F</span>: <span class='ident'>FnMut</span>(<span class='ident'>B</span>, <span class='ident'>B</span>) <span class='op'>-></span> <span class='ident'>B</span> {
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>len</span>(), <span class='ident'>other</span>.<span class='ident'>len</span>());
<span class='comment'>// This could theoretically be a `debug_assert!`.</span>
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>(), <span class='ident'>other</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>());
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>changed_bits</span> <span class='op'>=</span> <span class='ident'>B</span>::<span class='ident'>zero</span>();
<span class='kw'>for</span> (<span class='ident'>a</span>, <span class='ident'>b</span>) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>blocks_mut</span>().<span class='ident'>zip</span>(<span class='ident'>other</span>.<span class='ident'>blocks</span>()) {
<span class='kw'>let</span> <span class='ident'>w</span> <span class='op'>=</span> <span class='ident'>op</span>(<span class='op'>*</span><span class='ident'>a</span>, <span class='ident'>b</span>);
<span class='ident'>changed_bits</span> <span class='op'>=</span> <span class='ident'>changed_bits</span> <span class='op'>|</span> (<span class='op'>*</span><span class='ident'>a</span> <span class='op'>^</span> <span class='ident'>w</span>);
<span class='op'>*</span><span class='ident'>a</span> <span class='op'>=</span> <span class='ident'>w</span>;
}
<span class='ident'>changed_bits</span> <span class='op'>!=</span> <span class='ident'>B</span>::<span class='ident'>zero</span>()
}
<span class='doccomment'>/// Iterator over mutable refs to the underlying blocks of data.</span>
<span class='kw'>fn</span> <span class='ident'>blocks_mut</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>MutBlocks</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='comment'>// (2)</span>
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>iter_mut</span>()
}
<span class='doccomment'>/// Iterator over the underlying blocks of data</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>blocks</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>Blocks</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='comment'>// (2)</span>
<span class='ident'>Blocks</span>{<span class='ident'>iter</span>: <span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>iter</span>()}
}
<span class='doccomment'>/// Exposes the raw block storage of this BitVec</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Only really intended for BitSet.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>storage</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='kw-2'>&</span>[<span class='ident'>B</span>] {
<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>storage</span>
}
<span class='doccomment'>/// Exposes the raw block storage of this BitVec</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Can probably cause unsafety. Only really intended for BitSet.</span>
<span class='kw'>pub</span> <span class='kw'>unsafe</span> <span class='kw'>fn</span> <span class='ident'>storage_mut</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>storage</span>
}
<span class='doccomment'>/// An operation might screw up the unused bits in the last block of the</span>
<span class='doccomment'>/// `BitVec`. As per (3), it's assumed to be all 0s. This method fixes it up.</span>
<span class='kw'>fn</span> <span class='ident'>fix_last_block</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>let</span> <span class='ident'>extra_bits</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>len</span>() <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>();
<span class='kw'>if</span> <span class='ident'>extra_bits</span> <span class='op'>></span> <span class='number'>0</span> {
<span class='kw'>let</span> <span class='ident'>mask</span> <span class='op'>=</span> (<span class='ident'>B</span>::<span class='ident'>one</span>() <span class='op'><<</span> <span class='ident'>extra_bits</span>) <span class='op'>-</span> <span class='ident'>B</span>::<span class='ident'>one</span>();
<span class='kw'>let</span> <span class='ident'>storage_len</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>();
<span class='kw'>let</span> <span class='ident'>block</span> <span class='op'>=</span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>storage</span>[<span class='ident'>storage_len</span> <span class='op'>-</span> <span class='number'>1</span>];
<span class='op'>*</span><span class='ident'>block</span> <span class='op'>=</span> <span class='op'>*</span><span class='ident'>block</span> <span class='kw-2'>&</span> <span class='ident'>mask</span>;
}
}
<span class='doccomment'>/// Retrieves the value at index `i`, or `None` if the index is out of bounds.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let bv = BitVec::from_bytes(&[0b01100000]);</span>
<span class='doccomment'>/// assert_eq!(bv.get(0), Some(false));</span>
<span class='doccomment'>/// assert_eq!(bv.get(1), Some(true));</span>
<span class='doccomment'>/// assert_eq!(bv.get(100), None);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// // Can also use array indexing</span>
<span class='doccomment'>/// assert_eq!(bv[1], true);</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>i</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> {
<span class='kw'>if</span> <span class='ident'>i</span> <span class='op'>>=</span> <span class='self'>self</span>.<span class='ident'>nbits</span> {
<span class='kw'>return</span> <span class='prelude-val'>None</span>;
}
<span class='kw'>let</span> <span class='ident'>w</span> <span class='op'>=</span> <span class='ident'>i</span> <span class='op'>/</span> <span class='ident'>B</span>::<span class='ident'>bits</span>();
<span class='kw'>let</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>i</span> <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>();
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>get</span>(<span class='ident'>w</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='kw-2'>&</span><span class='ident'>block</span><span class='op'>|</span>
(<span class='ident'>block</span> <span class='kw-2'>&</span> (<span class='ident'>B</span>::<span class='ident'>one</span>() <span class='op'><<</span> <span class='ident'>b</span>)) <span class='op'>!=</span> <span class='ident'>B</span>::<span class='ident'>zero</span>()
)
}
<span class='doccomment'>/// Sets the value of a bit at an index `i`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if `i` is out of bounds.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(5, false);</span>
<span class='doccomment'>/// bv.set(3, true);</span>
<span class='doccomment'>/// assert_eq!(bv[3], true);</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>set</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>i</span>: <span class='ident'>usize</span>, <span class='ident'>x</span>: <span class='ident'>bool</span>) {
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>i</span> <span class='op'><</span> <span class='self'>self</span>.<span class='ident'>nbits</span>, <span class='string'>"index out of bounds: {:?} >= {:?}"</span>, <span class='ident'>i</span>, <span class='self'>self</span>.<span class='ident'>nbits</span>);
<span class='kw'>let</span> <span class='ident'>w</span> <span class='op'>=</span> <span class='ident'>i</span> <span class='op'>/</span> <span class='ident'>B</span>::<span class='ident'>bits</span>();
<span class='kw'>let</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>i</span> <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>();
<span class='kw'>let</span> <span class='ident'>flag</span> <span class='op'>=</span> <span class='ident'>B</span>::<span class='ident'>one</span>() <span class='op'><<</span> <span class='ident'>b</span>;
<span class='kw'>let</span> <span class='ident'>val</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ident'>x</span> { <span class='self'>self</span>.<span class='ident'>storage</span>[<span class='ident'>w</span>] <span class='op'>|</span> <span class='ident'>flag</span> }
<span class='kw'>else</span> { <span class='self'>self</span>.<span class='ident'>storage</span>[<span class='ident'>w</span>] <span class='kw-2'>&</span> <span class='op'>!</span><span class='ident'>flag</span> };
<span class='self'>self</span>.<span class='ident'>storage</span>[<span class='ident'>w</span>] <span class='op'>=</span> <span class='ident'>val</span>;
}
<span class='doccomment'>/// Sets all bits to 1.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let before = 0b01100000;</span>
<span class='doccomment'>/// let after = 0b11111111;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_bytes(&[before]);</span>
<span class='doccomment'>/// bv.set_all();</span>
<span class='doccomment'>/// assert_eq!(bv, BitVec::from_bytes(&[after]));</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>set_all</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>for</span> <span class='ident'>w</span> <span class='kw'>in</span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>storage</span> { <span class='op'>*</span><span class='ident'>w</span> <span class='op'>=</span> <span class='op'>!</span><span class='ident'>B</span>::<span class='ident'>zero</span>(); }
<span class='self'>self</span>.<span class='ident'>fix_last_block</span>();
}
<span class='doccomment'>/// Flips all bits.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let before = 0b01100000;</span>
<span class='doccomment'>/// let after = 0b10011111;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_bytes(&[before]);</span>
<span class='doccomment'>/// bv.negate();</span>
<span class='doccomment'>/// assert_eq!(bv, BitVec::from_bytes(&[after]));</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>negate</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>for</span> <span class='ident'>w</span> <span class='kw'>in</span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>storage</span> { <span class='op'>*</span><span class='ident'>w</span> <span class='op'>=</span> <span class='op'>!</span><span class='op'>*</span><span class='ident'>w</span>; }
<span class='self'>self</span>.<span class='ident'>fix_last_block</span>();
}
<span class='doccomment'>/// Calculates the union of two bitvectors. This acts like the bitwise `or`</span>
<span class='doccomment'>/// function.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Sets `self` to the union of `self` and `other`. Both bitvectors must be</span>
<span class='doccomment'>/// the same length. Returns `true` if `self` changed.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if the bitvectors are of different lengths.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let a = 0b01100100;</span>
<span class='doccomment'>/// let b = 0b01011010;</span>
<span class='doccomment'>/// let res = 0b01111110;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut a = BitVec::from_bytes(&[a]);</span>
<span class='doccomment'>/// let b = BitVec::from_bytes(&[b]);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// assert!(a.union(&b));</span>
<span class='doccomment'>/// assert_eq!(a, BitVec::from_bytes(&[res]));</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>union</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&</span><span class='kw'>Self</span>) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='self'>self</span>.<span class='ident'>process</span>(<span class='ident'>other</span>, <span class='op'>|</span><span class='ident'>w1</span>, <span class='ident'>w2</span><span class='op'>|</span> (<span class='ident'>w1</span> <span class='op'>|</span> <span class='ident'>w2</span>))
}
<span class='doccomment'>/// Calculates the intersection of two bitvectors. This acts like the</span>
<span class='doccomment'>/// bitwise `and` function.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Sets `self` to the intersection of `self` and `other`. Both bitvectors</span>
<span class='doccomment'>/// must be the same length. Returns `true` if `self` changed.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if the bitvectors are of different lengths.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let a = 0b01100100;</span>
<span class='doccomment'>/// let b = 0b01011010;</span>
<span class='doccomment'>/// let res = 0b01000000;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut a = BitVec::from_bytes(&[a]);</span>
<span class='doccomment'>/// let b = BitVec::from_bytes(&[b]);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// assert!(a.intersect(&b));</span>
<span class='doccomment'>/// assert_eq!(a, BitVec::from_bytes(&[res]));</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>intersect</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&</span><span class='kw'>Self</span>) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='self'>self</span>.<span class='ident'>process</span>(<span class='ident'>other</span>, <span class='op'>|</span><span class='ident'>w1</span>, <span class='ident'>w2</span><span class='op'>|</span> (<span class='ident'>w1</span> <span class='kw-2'>&</span> <span class='ident'>w2</span>))
}
<span class='doccomment'>/// Calculates the difference between two bitvectors.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Sets each element of `self` to the value of that element minus the</span>
<span class='doccomment'>/// element of `other` at the same index. Both bitvectors must be the same</span>
<span class='doccomment'>/// length. Returns `true` if `self` changed.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if the bitvectors are of different length.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let a = 0b01100100;</span>
<span class='doccomment'>/// let b = 0b01011010;</span>
<span class='doccomment'>/// let a_b = 0b00100100; // a - b</span>
<span class='doccomment'>/// let b_a = 0b00011010; // b - a</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bva = BitVec::from_bytes(&[a]);</span>
<span class='doccomment'>/// let bvb = BitVec::from_bytes(&[b]);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// assert!(bva.difference(&bvb));</span>
<span class='doccomment'>/// assert_eq!(bva, BitVec::from_bytes(&[a_b]));</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let bva = BitVec::from_bytes(&[a]);</span>
<span class='doccomment'>/// let mut bvb = BitVec::from_bytes(&[b]);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// assert!(bvb.difference(&bva));</span>
<span class='doccomment'>/// assert_eq!(bvb, BitVec::from_bytes(&[b_a]));</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>difference</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&</span><span class='kw'>Self</span>) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='self'>self</span>.<span class='ident'>process</span>(<span class='ident'>other</span>, <span class='op'>|</span><span class='ident'>w1</span>, <span class='ident'>w2</span><span class='op'>|</span> (<span class='ident'>w1</span> <span class='kw-2'>&</span> <span class='op'>!</span><span class='ident'>w2</span>))
}
<span class='doccomment'>/// Returns `true` if all bits are 1.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(5, true);</span>
<span class='doccomment'>/// assert_eq!(bv.all(), true);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// bv.set(1, false);</span>
<span class='doccomment'>/// assert_eq!(bv.all(), false);</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>all</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>last_word</span> <span class='op'>=</span> <span class='op'>!</span><span class='ident'>B</span>::<span class='ident'>zero</span>();
<span class='comment'>// Check that every block but the last is all-ones...</span>
<span class='self'>self</span>.<span class='ident'>blocks</span>().<span class='ident'>all</span>(<span class='op'>|</span><span class='ident'>elem</span><span class='op'>|</span> {
<span class='kw'>let</span> <span class='ident'>tmp</span> <span class='op'>=</span> <span class='ident'>last_word</span>;
<span class='ident'>last_word</span> <span class='op'>=</span> <span class='ident'>elem</span>;
<span class='ident'>tmp</span> <span class='op'>==</span> <span class='op'>!</span><span class='ident'>B</span>::<span class='ident'>zero</span>()
<span class='comment'>// and then check the last one has enough ones</span>
}) <span class='op'>&&</span> (<span class='ident'>last_word</span> <span class='op'>==</span> <span class='ident'>mask_for_bits</span>(<span class='self'>self</span>.<span class='ident'>nbits</span>))
}
<span class='doccomment'>/// Returns an iterator over the elements of the vector in order.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let bv = BitVec::from_bytes(&[0b01110100, 0b10010010]);</span>
<span class='doccomment'>/// assert_eq!(bv.iter().filter(|x| *x).count(), 7);</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>iter</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>Iter</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='ident'>Iter</span> { <span class='ident'>bit_vec</span>: <span class='self'>self</span>, <span class='ident'>range</span>: <span class='number'>0</span>..<span class='self'>self</span>.<span class='ident'>nbits</span> }
}
<span class='comment'>/*
/// Moves all bits from `other` into `Self`, leaving `other` empty.
///
/// # Examples
///
/// ```
/// # #![feature(collections, bit_vec_append_split_off)]
/// use bit_vec::BitVec;
///
/// let mut a = BitVec::from_bytes(&[0b10000000]);
/// let mut b = BitVec::from_bytes(&[0b01100001]);
///
/// a.append(&mut b);
///
/// assert_eq!(a.len(), 16);
/// assert_eq!(b.len(), 0);
/// assert!(a.eq_vec(&[true, false, false, false, false, false, false, false,
/// false, true, true, false, false, false, false, true]));
/// ```
pub fn append(&mut self, other: &mut Self) {
let b = self.len() % B::bits();
self.nbits += other.len();
other.nbits = 0;
if b == 0 {
self.storage.append(&mut other.storage);
} else {
self.storage.reserve(other.storage.len());
for block in other.storage.drain(..) {
{
let last = self.storage.last_mut().unwrap();
*last = *last | (block << b);
}
self.storage.push(block >> (B::bits() - b));
}
}
}
/// Splits the `BitVec` into two at the given bit,
/// retaining the first half in-place and returning the second one.
///
/// # Panics
///
/// Panics if `at` is out of bounds.
///
/// # Examples
///
/// ```
/// # #![feature(collections, bit_vec_append_split_off)]
/// use bit_vec::BitVec;
/// let mut a = BitVec::new();
/// a.push(true);
/// a.push(false);
/// a.push(false);
/// a.push(true);
///
/// let b = a.split_off(2);
///
/// assert_eq!(a.len(), 2);
/// assert_eq!(b.len(), 2);
/// assert!(a.eq_vec(&[true, false]));
/// assert!(b.eq_vec(&[false, true]));
/// ```
pub fn split_off(&mut self, at: usize) -> Self {
assert!(at <= self.len(), "`at` out of bounds");
let mut other = BitVec::new();
if at == 0 {
swap(self, &mut other);
return other;
} else if at == self.len() {
return other;
}
let w = at / B::bits();
let b = at % B::bits();
other.nbits = self.nbits - at;
self.nbits = at;
if b == 0 {
// Split at block boundary
other.storage = self.storage.split_off(w);
} else {
other.storage.reserve(self.storage.len() - w);
{
let mut iter = self.storage[w..].iter();
let mut last = *iter.next().unwrap();
for &cur in iter {
other.storage.push((last >> b) | (cur << (B::bits() - b)));
last = cur;
}
other.storage.push(last >> b);
}
self.storage.truncate(w + 1);
self.fix_last_block();
}
other
}
*/</span>
<span class='doccomment'>/// Returns `true` if all bits are 0.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(10, false);</span>
<span class='doccomment'>/// assert_eq!(bv.none(), true);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// bv.set(3, true);</span>
<span class='doccomment'>/// assert_eq!(bv.none(), false);</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>none</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='self'>self</span>.<span class='ident'>blocks</span>().<span class='ident'>all</span>(<span class='op'>|</span><span class='ident'>w</span><span class='op'>|</span> <span class='ident'>w</span> <span class='op'>==</span> <span class='ident'>B</span>::<span class='ident'>zero</span>())
}
<span class='doccomment'>/// Returns `true` if any bit is 1.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(10, false);</span>
<span class='doccomment'>/// assert_eq!(bv.any(), false);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// bv.set(3, true);</span>
<span class='doccomment'>/// assert_eq!(bv.any(), true);</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>any</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='op'>!</span><span class='self'>self</span>.<span class='ident'>none</span>()
}
<span class='doccomment'>/// Organises the bits into bytes, such that the first bit in the</span>
<span class='doccomment'>/// `BitVec` becomes the high-order bit of the first byte. If the</span>
<span class='doccomment'>/// size of the `BitVec` is not a multiple of eight then trailing bits</span>
<span class='doccomment'>/// will be filled-in with `false`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(3, true);</span>
<span class='doccomment'>/// bv.set(1, false);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// assert_eq!(bv.to_bytes(), [0b10100000]);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(9, false);</span>
<span class='doccomment'>/// bv.set(2, true);</span>
<span class='doccomment'>/// bv.set(8, true);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// assert_eq!(bv.to_bytes(), [0b00100000, 0b10000000]);</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>to_bytes</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></span> {
<span class='comment'>// Oh lord, we're mapping this to bytes bit-by-bit!</span>
<span class='kw'>fn</span> <span class='ident'>bit</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span>(<span class='ident'>bit_vec</span>: <span class='kw-2'>&</span><span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span>, <span class='ident'>byte</span>: <span class='ident'>usize</span>, <span class='ident'>bit</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='ident'>u8</span> {
<span class='kw'>let</span> <span class='ident'>offset</span> <span class='op'>=</span> <span class='ident'>byte</span> <span class='op'>*</span> <span class='number'>8</span> <span class='op'>+</span> <span class='ident'>bit</span>;
<span class='kw'>if</span> <span class='ident'>offset</span> <span class='op'>>=</span> <span class='ident'>bit_vec</span>.<span class='ident'>nbits</span> {
<span class='number'>0</span>
} <span class='kw'>else</span> {
(<span class='ident'>bit_vec</span>[<span class='ident'>offset</span>] <span class='kw'>as</span> <span class='ident'>u8</span>) <span class='op'><<</span> (<span class='number'>7</span> <span class='op'>-</span> <span class='ident'>bit</span>)
}
}
<span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>/</span> <span class='number'>8</span> <span class='op'>+</span>
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>%</span> <span class='number'>8</span> <span class='op'>==</span> <span class='number'>0</span> { <span class='number'>0</span> } <span class='kw'>else</span> { <span class='number'>1</span> };
(<span class='number'>0</span>..<span class='ident'>len</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>i</span><span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>0</span>) <span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>1</span>) <span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>2</span>) <span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>3</span>) <span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>4</span>) <span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>5</span>) <span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>6</span>) <span class='op'>|</span>
<span class='ident'>bit</span>(<span class='self'>self</span>, <span class='ident'>i</span>, <span class='number'>7</span>)
).<span class='ident'>collect</span>()
}
<span class='doccomment'>/// Compares a `BitVec` to a slice of `bool`s.</span>
<span class='doccomment'>/// Both the `BitVec` and slice must have the same length.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if the `BitVec` and slice are of different length.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let bv = BitVec::from_bytes(&[0b10100000]);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// assert!(bv.eq_vec(&[true, false, true, false,</span>
<span class='doccomment'>/// false, false, false, false]));</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>eq_vec</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>v</span>: <span class='kw-2'>&</span>[<span class='ident'>bool</span>]) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>nbits</span>, <span class='ident'>v</span>.<span class='ident'>len</span>());
<span class='self'>self</span>.<span class='ident'>iter</span>().<span class='ident'>zip</span>(<span class='ident'>v</span>.<span class='ident'>iter</span>().<span class='ident'>cloned</span>()).<span class='ident'>all</span>(<span class='op'>|</span>(<span class='ident'>b1</span>, <span class='ident'>b2</span>)<span class='op'>|</span> <span class='ident'>b1</span> <span class='op'>==</span> <span class='ident'>b2</span>)
}
<span class='doccomment'>/// Shortens a `BitVec`, dropping excess elements.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// If `len` is greater than the vector's current length, this has no</span>
<span class='doccomment'>/// effect.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_bytes(&[0b01001011]);</span>
<span class='doccomment'>/// bv.truncate(2);</span>
<span class='doccomment'>/// assert!(bv.eq_vec(&[false, true]));</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>truncate</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>len</span>: <span class='ident'>usize</span>) {
<span class='kw'>if</span> <span class='ident'>len</span> <span class='op'><</span> <span class='self'>self</span>.<span class='ident'>len</span>() {
<span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>=</span> <span class='ident'>len</span>;
<span class='comment'>// This fixes (2).</span>
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>truncate</span>(<span class='ident'>blocks_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='ident'>len</span>));
<span class='self'>self</span>.<span class='ident'>fix_last_block</span>();
}
}
<span class='doccomment'>/// Reserves capacity for at least `additional` more bits to be inserted in the given</span>
<span class='doccomment'>/// `BitVec`. The collection may reserve more space to avoid frequent reallocations.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if the new capacity overflows `usize`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(3, false);</span>
<span class='doccomment'>/// bv.reserve(10);</span>
<span class='doccomment'>/// assert_eq!(bv.len(), 3);</span>
<span class='doccomment'>/// assert!(bv.capacity() >= 13);</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>reserve</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>additional</span>: <span class='ident'>usize</span>) {
<span class='kw'>let</span> <span class='ident'>desired_cap</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>len</span>().<span class='ident'>checked_add</span>(<span class='ident'>additional</span>).<span class='ident'>expect</span>(<span class='string'>"capacity overflow"</span>);
<span class='kw'>let</span> <span class='ident'>storage_len</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>();
<span class='kw'>if</span> <span class='ident'>desired_cap</span> <span class='op'>></span> <span class='self'>self</span>.<span class='ident'>capacity</span>() {
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>reserve</span>(<span class='ident'>blocks_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='ident'>desired_cap</span>) <span class='op'>-</span> <span class='ident'>storage_len</span>);
}
}
<span class='doccomment'>/// Reserves the minimum capacity for exactly `additional` more bits to be inserted in the</span>
<span class='doccomment'>/// given `BitVec`. Does nothing if the capacity is already sufficient.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Note that the allocator may give the collection more space than it requests. Therefore</span>
<span class='doccomment'>/// capacity can not be relied upon to be precisely minimal. Prefer `reserve` if future</span>
<span class='doccomment'>/// insertions are expected.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if the new capacity overflows `usize`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_elem(3, false);</span>
<span class='doccomment'>/// bv.reserve(10);</span>
<span class='doccomment'>/// assert_eq!(bv.len(), 3);</span>
<span class='doccomment'>/// assert!(bv.capacity() >= 13);</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>reserve_exact</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>additional</span>: <span class='ident'>usize</span>) {
<span class='kw'>let</span> <span class='ident'>desired_cap</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>len</span>().<span class='ident'>checked_add</span>(<span class='ident'>additional</span>).<span class='ident'>expect</span>(<span class='string'>"capacity overflow"</span>);
<span class='kw'>let</span> <span class='ident'>storage_len</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>();
<span class='kw'>if</span> <span class='ident'>desired_cap</span> <span class='op'>></span> <span class='self'>self</span>.<span class='ident'>capacity</span>() {
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>reserve_exact</span>(<span class='ident'>blocks_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='ident'>desired_cap</span>) <span class='op'>-</span> <span class='ident'>storage_len</span>);
}
}
<span class='doccomment'>/// Returns the capacity in bits for this bit vector. Inserting any</span>
<span class='doccomment'>/// element less than this amount will not trigger a resizing.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::new();</span>
<span class='doccomment'>/// bv.reserve(10);</span>
<span class='doccomment'>/// assert!(bv.capacity() >= 10);</span>
<span class='doccomment'>/// ```</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>capacity</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span> {
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>capacity</span>().<span class='ident'>checked_mul</span>(<span class='ident'>B</span>::<span class='ident'>bits</span>()).<span class='ident'>unwrap_or</span>(<span class='ident'>usize</span>::<span class='ident'>MAX</span>)
}
<span class='doccomment'>/// Grows the `BitVec` in-place, adding `n` copies of `value` to the `BitVec`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Panics</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Panics if the new len overflows a `usize`.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_bytes(&[0b01001011]);</span>
<span class='doccomment'>/// bv.grow(2, true);</span>
<span class='doccomment'>/// assert_eq!(bv.len(), 10);</span>
<span class='doccomment'>/// assert_eq!(bv.to_bytes(), [0b01001011, 0b11000000]);</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>grow</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>n</span>: <span class='ident'>usize</span>, <span class='ident'>value</span>: <span class='ident'>bool</span>) {
<span class='comment'>// Note: we just bulk set all the bits in the last word in this fn in multiple places</span>
<span class='comment'>// which is technically wrong if not all of these bits are to be used. However, at the end</span>
<span class='comment'>// of this fn we call `fix_last_block` at the end of this fn, which should fix this.</span>
<span class='kw'>let</span> <span class='ident'>new_nbits</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>nbits</span>.<span class='ident'>checked_add</span>(<span class='ident'>n</span>).<span class='ident'>expect</span>(<span class='string'>"capacity overflow"</span>);
<span class='kw'>let</span> <span class='ident'>new_nblocks</span> <span class='op'>=</span> <span class='ident'>blocks_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='ident'>new_nbits</span>);
<span class='kw'>let</span> <span class='ident'>full_value</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ident'>value</span> { <span class='op'>!</span><span class='ident'>B</span>::<span class='ident'>zero</span>() } <span class='kw'>else</span> { <span class='ident'>B</span>::<span class='ident'>zero</span>() };
<span class='comment'>// Correct the old tail word, setting or clearing formerly unused bits</span>
<span class='kw'>let</span> <span class='ident'>num_cur_blocks</span> <span class='op'>=</span> <span class='ident'>blocks_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='self'>self</span>.<span class='ident'>nbits</span>);
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>() <span class='op'>></span> <span class='number'>0</span> {
<span class='kw'>let</span> <span class='ident'>mask</span> <span class='op'>=</span> <span class='ident'>mask_for_bits</span>::<span class='op'><</span><span class='ident'>B</span><span class='op'>></span>(<span class='self'>self</span>.<span class='ident'>nbits</span>);
<span class='kw'>if</span> <span class='ident'>value</span> {
<span class='kw'>let</span> <span class='ident'>block</span> <span class='op'>=</span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>storage</span>[<span class='ident'>num_cur_blocks</span> <span class='op'>-</span> <span class='number'>1</span>];
<span class='op'>*</span><span class='ident'>block</span> <span class='op'>=</span> <span class='op'>*</span><span class='ident'>block</span> <span class='op'>|</span> <span class='op'>!</span><span class='ident'>mask</span>;
} <span class='kw'>else</span> {
<span class='comment'>// Extra bits are already zero by invariant.</span>
}
}
<span class='comment'>// Fill in words after the old tail word</span>
<span class='kw'>let</span> <span class='ident'>stop_idx</span> <span class='op'>=</span> <span class='ident'>cmp</span>::<span class='ident'>min</span>(<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>(), <span class='ident'>new_nblocks</span>);
<span class='kw'>for</span> <span class='ident'>idx</span> <span class='kw'>in</span> <span class='ident'>num_cur_blocks</span>..<span class='ident'>stop_idx</span> {
<span class='self'>self</span>.<span class='ident'>storage</span>[<span class='ident'>idx</span>] <span class='op'>=</span> <span class='ident'>full_value</span>;
}
<span class='comment'>// Allocate new words, if needed</span>
<span class='kw'>if</span> <span class='ident'>new_nblocks</span> <span class='op'>></span> <span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>() {
<span class='kw'>let</span> <span class='ident'>to_add</span> <span class='op'>=</span> <span class='ident'>new_nblocks</span> <span class='op'>-</span> <span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>len</span>();
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>extend</span>(<span class='ident'>repeat</span>(<span class='ident'>full_value</span>).<span class='ident'>take</span>(<span class='ident'>to_add</span>));
}
<span class='comment'>// Adjust internal bit count</span>
<span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>=</span> <span class='ident'>new_nbits</span>;
<span class='self'>self</span>.<span class='ident'>fix_last_block</span>();
}
<span class='doccomment'>/// Removes the last bit from the BitVec, and returns it. Returns None if the BitVec is empty.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::from_bytes(&[0b01001001]);</span>
<span class='doccomment'>/// assert_eq!(bv.pop(), Some(true));</span>
<span class='doccomment'>/// assert_eq!(bv.pop(), Some(false));</span>
<span class='doccomment'>/// assert_eq!(bv.len(), 6);</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>pop</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> {
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>is_empty</span>() {
<span class='prelude-val'>None</span>
} <span class='kw'>else</span> {
<span class='kw'>let</span> <span class='ident'>i</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>-</span> <span class='number'>1</span>;
<span class='kw'>let</span> <span class='ident'>ret</span> <span class='op'>=</span> <span class='self'>self</span>[<span class='ident'>i</span>];
<span class='comment'>// (3)</span>
<span class='self'>self</span>.<span class='ident'>set</span>(<span class='ident'>i</span>, <span class='boolval'>false</span>);
<span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>=</span> <span class='ident'>i</span>;
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>() <span class='op'>==</span> <span class='number'>0</span> {
<span class='comment'>// (2)</span>
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>pop</span>();
}
<span class='prelude-val'>Some</span>(<span class='ident'>ret</span>)
}
}
<span class='doccomment'>/// Pushes a `bool` onto the end.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Examples</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// use bit_vec::BitVec;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let mut bv = BitVec::new();</span>
<span class='doccomment'>/// bv.push(true);</span>
<span class='doccomment'>/// bv.push(false);</span>
<span class='doccomment'>/// assert!(bv.eq_vec(&[true, false]));</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>push</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>elem</span>: <span class='ident'>bool</span>) {
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>%</span> <span class='ident'>B</span>::<span class='ident'>bits</span>() <span class='op'>==</span> <span class='number'>0</span> {
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>push</span>(<span class='ident'>B</span>::<span class='ident'>zero</span>());
}
<span class='kw'>let</span> <span class='ident'>insert_pos</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>nbits</span>;
<span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>nbits</span>.<span class='ident'>checked_add</span>(<span class='number'>1</span>).<span class='ident'>expect</span>(<span class='string'>"Capacity overflow"</span>);
<span class='self'>self</span>.<span class='ident'>set</span>(<span class='ident'>insert_pos</span>, <span class='ident'>elem</span>);
}
<span class='doccomment'>/// Returns the total number of bits in this vector</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>len</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span> { <span class='self'>self</span>.<span class='ident'>nbits</span> }
<span class='doccomment'>/// Sets the number of bits that this BitVec considers initialized.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Almost certainly can cause bad stuff. Only really intended for BitSet.</span>
<span class='kw'>pub</span> <span class='kw'>unsafe</span> <span class='kw'>fn</span> <span class='ident'>set_len</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>len</span>: <span class='ident'>usize</span>) {
<span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>=</span> <span class='ident'>len</span>;
}
<span class='doccomment'>/// Returns true if there are no bits in this vector</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>is_empty</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>bool</span> { <span class='self'>self</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span> }
<span class='doccomment'>/// Clears all bits in this vector.</span>
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>clear</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>for</span> <span class='ident'>w</span> <span class='kw'>in</span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>storage</span> { <span class='op'>*</span><span class='ident'>w</span> <span class='op'>=</span> <span class='ident'>B</span>::<span class='ident'>zero</span>(); }
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Default</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>default</span>() <span class='op'>-></span> <span class='kw'>Self</span> { <span class='ident'>BitVec</span> { <span class='ident'>storage</span>: <span class='ident'>Vec</span>::<span class='ident'>new</span>(), <span class='ident'>nbits</span>: <span class='number'>0</span> } }
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>FromIterator</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>fn</span> <span class='ident'>from_iter</span><span class='op'><</span><span class='ident'>I</span>: <span class='ident'>IntoIterator</span><span class='op'><</span><span class='ident'>Item</span><span class='op'>=</span><span class='ident'>bool</span><span class='op'>>></span>(<span class='ident'>iter</span>: <span class='ident'>I</span>) <span class='op'>-></span> <span class='kw'>Self</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>ret</span>: <span class='kw'>Self</span> <span class='op'>=</span> <span class='ident'>Default</span>::<span class='ident'>default</span>();
<span class='ident'>ret</span>.<span class='ident'>extend</span>(<span class='ident'>iter</span>);
<span class='ident'>ret</span>
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Extend</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>extend</span><span class='op'><</span><span class='ident'>I</span>: <span class='ident'>IntoIterator</span><span class='op'><</span><span class='ident'>Item</span><span class='op'>=</span><span class='ident'>bool</span><span class='op'>>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>iterable</span>: <span class='ident'>I</span>) {
<span class='kw'>let</span> <span class='ident'>iterator</span> <span class='op'>=</span> <span class='ident'>iterable</span>.<span class='ident'>into_iter</span>();
<span class='kw'>let</span> (<span class='ident'>min</span>, _) <span class='op'>=</span> <span class='ident'>iterator</span>.<span class='ident'>size_hint</span>();
<span class='self'>self</span>.<span class='ident'>reserve</span>(<span class='ident'>min</span>);
<span class='kw'>for</span> <span class='ident'>element</span> <span class='kw'>in</span> <span class='ident'>iterator</span> {
<span class='self'>self</span>.<span class='ident'>push</span>(<span class='ident'>element</span>)
}
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Clone</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>clone</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='kw'>Self</span> {
<span class='ident'>BitVec</span> { <span class='ident'>storage</span>: <span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>clone</span>(), <span class='ident'>nbits</span>: <span class='self'>self</span>.<span class='ident'>nbits</span> }
}
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>clone_from</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>source</span>: <span class='kw-2'>&</span><span class='kw'>Self</span>) {
<span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>=</span> <span class='ident'>source</span>.<span class='ident'>nbits</span>;
<span class='self'>self</span>.<span class='ident'>storage</span>.<span class='ident'>clone_from</span>(<span class='kw-2'>&</span><span class='ident'>source</span>.<span class='ident'>storage</span>);
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>PartialOrd</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>partial_cmp</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&</span><span class='kw'>Self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>Ordering</span><span class='op'>></span> {
<span class='prelude-val'>Some</span>(<span class='self'>self</span>.<span class='ident'>cmp</span>(<span class='ident'>other</span>))
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Ord</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>cmp</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&</span><span class='kw'>Self</span>) <span class='op'>-></span> <span class='ident'>Ordering</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>a</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>iter</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>other</span>.<span class='ident'>iter</span>();
<span class='kw'>loop</span> {
<span class='kw'>match</span> (<span class='ident'>a</span>.<span class='ident'>next</span>(), <span class='ident'>b</span>.<span class='ident'>next</span>()) {
(<span class='prelude-val'>Some</span>(<span class='ident'>x</span>), <span class='prelude-val'>Some</span>(<span class='ident'>y</span>)) <span class='op'>=></span> <span class='kw'>match</span> <span class='ident'>x</span>.<span class='ident'>cmp</span>(<span class='kw-2'>&</span><span class='ident'>y</span>) {
<span class='ident'>Ordering</span>::<span class='ident'>Equal</span> <span class='op'>=></span> {}
<span class='ident'>otherwise</span> <span class='op'>=></span> <span class='kw'>return</span> <span class='ident'>otherwise</span>,
},
(<span class='prelude-val'>None</span>, <span class='prelude-val'>None</span>) <span class='op'>=></span> <span class='kw'>return</span> <span class='ident'>Ordering</span>::<span class='ident'>Equal</span>,
(<span class='prelude-val'>None</span>, _) <span class='op'>=></span> <span class='kw'>return</span> <span class='ident'>Ordering</span>::<span class='ident'>Less</span>,
(_, <span class='prelude-val'>None</span>) <span class='op'>=></span> <span class='kw'>return</span> <span class='ident'>Ordering</span>::<span class='ident'>Greater</span>,
}
}
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>fmt</span>::<span class='ident'>Debug</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>fn</span> <span class='ident'>fmt</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>fmt</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>fmt</span>::<span class='ident'>Formatter</span>) <span class='op'>-></span> <span class='ident'>fmt</span>::<span class='prelude-ty'>Result</span> {
<span class='kw'>for</span> <span class='ident'>bit</span> <span class='kw'>in</span> <span class='self'>self</span> {
<span class='macro'>try</span><span class='macro'>!</span>(<span class='macro'>write</span><span class='macro'>!</span>(<span class='ident'>fmt</span>, <span class='string'>"{}"</span>, <span class='kw'>if</span> <span class='ident'>bit</span> { <span class='number'>1</span> } <span class='kw'>else</span> { <span class='number'>0</span> }));
}
<span class='prelude-val'>Ok</span>(())
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>hash</span>::<span class='ident'>Hash</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>fn</span> <span class='ident'>hash</span><span class='op'><</span><span class='ident'>H</span>: <span class='ident'>hash</span>::<span class='ident'>Hasher</span><span class='op'>></span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>state</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>H</span>) {
<span class='self'>self</span>.<span class='ident'>nbits</span>.<span class='ident'>hash</span>(<span class='ident'>state</span>);
<span class='kw'>for</span> <span class='ident'>elem</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>blocks</span>() {
<span class='ident'>elem</span>.<span class='ident'>hash</span>(<span class='ident'>state</span>);
}
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>cmp</span>::<span class='ident'>PartialEq</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>eq</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>other</span>: <span class='kw-2'>&</span><span class='kw'>Self</span>) <span class='op'>-></span> <span class='ident'>bool</span> {
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>nbits</span> <span class='op'>!=</span> <span class='ident'>other</span>.<span class='ident'>nbits</span> {
<span class='kw'>return</span> <span class='boolval'>false</span>;
}
<span class='self'>self</span>.<span class='ident'>blocks</span>().<span class='ident'>zip</span>(<span class='ident'>other</span>.<span class='ident'>blocks</span>()).<span class='ident'>all</span>(<span class='op'>|</span>(<span class='ident'>w1</span>, <span class='ident'>w2</span>)<span class='op'>|</span> <span class='ident'>w1</span> <span class='op'>==</span> <span class='ident'>w2</span>)
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>cmp</span>::<span class='ident'>Eq</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {}
<span class='doccomment'>/// An iterator for `BitVec`.</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Iter</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='lifetime'>'a</span> <span class='op'>=</span> <span class='ident'>u32</span><span class='op'>></span> {
<span class='ident'>bit_vec</span>: <span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span>,
<span class='ident'>range</span>: <span class='ident'>Range</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>,
}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>Iter</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>bool</span>;
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>next</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> {
<span class='comment'>// NB: indexing is slow for extern crates when it has to go through &TRUE or &FALSE</span>
<span class='comment'>// variables. get is more direct, and unwrap is fine since we're sure of the range.</span>
<span class='self'>self</span>.<span class='ident'>range</span>.<span class='ident'>next</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>i</span><span class='op'>|</span> <span class='self'>self</span>.<span class='ident'>bit_vec</span>.<span class='ident'>get</span>(<span class='ident'>i</span>).<span class='ident'>unwrap</span>())
}
<span class='kw'>fn</span> <span class='ident'>size_hint</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> (<span class='ident'>usize</span>, <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>) {
<span class='self'>self</span>.<span class='ident'>range</span>.<span class='ident'>size_hint</span>()
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>DoubleEndedIterator</span> <span class='kw'>for</span> <span class='ident'>Iter</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>next_back</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> {
<span class='self'>self</span>.<span class='ident'>range</span>.<span class='ident'>next_back</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>i</span><span class='op'>|</span> <span class='self'>self</span>.<span class='ident'>bit_vec</span>.<span class='ident'>get</span>(<span class='ident'>i</span>).<span class='ident'>unwrap</span>())
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>ExactSizeIterator</span> <span class='kw'>for</span> <span class='ident'>Iter</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> {}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>IntoIterator</span> <span class='kw'>for</span> <span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>bool</span>;
<span class='kw'>type</span> <span class='ident'>IntoIter</span> <span class='op'>=</span> <span class='ident'>Iter</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span>;
<span class='kw'>fn</span> <span class='ident'>into_iter</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>Iter</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> {
<span class='self'>self</span>.<span class='ident'>iter</span>()
}
}
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>IntoIter</span><span class='op'><</span><span class='ident'>B</span><span class='op'>=</span><span class='ident'>u32</span><span class='op'>></span> {
<span class='ident'>bit_vec</span>: <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span>,
<span class='ident'>range</span>: <span class='ident'>Range</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>,
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>IntoIter</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>bool</span>;
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>next</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> {
<span class='self'>self</span>.<span class='ident'>range</span>.<span class='ident'>next</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>i</span><span class='op'>|</span> <span class='self'>self</span>.<span class='ident'>bit_vec</span>.<span class='ident'>get</span>(<span class='ident'>i</span>).<span class='ident'>unwrap</span>())
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>DoubleEndedIterator</span> <span class='kw'>for</span> <span class='ident'>IntoIter</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>next_back</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>></span> {
<span class='self'>self</span>.<span class='ident'>range</span>.<span class='ident'>next_back</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>i</span><span class='op'>|</span> <span class='self'>self</span>.<span class='ident'>bit_vec</span>.<span class='ident'>get</span>(<span class='ident'>i</span>).<span class='ident'>unwrap</span>())
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>ExactSizeIterator</span> <span class='kw'>for</span> <span class='ident'>IntoIter</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {}
<span class='kw'>impl</span><span class='op'><</span><span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>IntoIterator</span> <span class='kw'>for</span> <span class='ident'>BitVec</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>bool</span>;
<span class='kw'>type</span> <span class='ident'>IntoIter</span> <span class='op'>=</span> <span class='ident'>IntoIter</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span>;
<span class='kw'>fn</span> <span class='ident'>into_iter</span>(<span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>IntoIter</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>let</span> <span class='ident'>nbits</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>nbits</span>;
<span class='ident'>IntoIter</span> { <span class='ident'>bit_vec</span>: <span class='self'>self</span>, <span class='ident'>range</span>: <span class='number'>0</span>..<span class='ident'>nbits</span> }
}
}
<span class='doccomment'>/// An iterator over the blocks of a `BitVec`.</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Clone</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Blocks</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='lifetime'>'a</span><span class='op'>></span> {
<span class='ident'>iter</span>: <span class='ident'>slice</span>::<span class='ident'>Iter</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span>,
}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>Blocks</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> {
<span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>B</span>;
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>next</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='self'>self</span>.<span class='ident'>iter</span>.<span class='ident'>next</span>().<span class='ident'>cloned</span>()
}
<span class='kw'>fn</span> <span class='ident'>size_hint</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> (<span class='ident'>usize</span>, <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>usize</span><span class='op'>></span>) {
<span class='self'>self</span>.<span class='ident'>iter</span>.<span class='ident'>size_hint</span>()
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>DoubleEndedIterator</span> <span class='kw'>for</span> <span class='ident'>Blocks</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> {
<span class='attribute'>#[<span class='ident'>inline</span>]</span>
<span class='kw'>fn</span> <span class='ident'>next_back</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>B</span><span class='op'>></span> {
<span class='self'>self</span>.<span class='ident'>iter</span>.<span class='ident'>next_back</span>().<span class='ident'>cloned</span>()
}
}
<span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span>: <span class='ident'>BitBlock</span><span class='op'>></span> <span class='ident'>ExactSizeIterator</span> <span class='kw'>for</span> <span class='ident'>Blocks</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>B</span><span class='op'>></span> {}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span>
<span class='kw'>mod</span> <span class='ident'>tests</span> {
<span class='kw'>use</span> <span class='ident'>super</span>::{<span class='ident'>BitVec</span>, <span class='ident'>Iter</span>};
<span class='comment'>// This is stupid, but I want to differentiate from a "random" 32</span>
<span class='kw'>const</span> <span class='ident'>U32_BITS</span>: <span class='ident'>usize</span> <span class='op'>=</span> <span class='number'>32</span>;
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_to_str</span>() {
<span class='kw'>let</span> <span class='ident'>zerolen</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>new</span>();
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{:?}"</span>, <span class='ident'>zerolen</span>), <span class='string'>""</span>);
<span class='kw'>let</span> <span class='ident'>eightbits</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>8</span>, <span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{:?}"</span>, <span class='ident'>eightbits</span>), <span class='string'>"00000000"</span>)
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_0_elements</span>() {
<span class='kw'>let</span> <span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>new</span>();
<span class='kw'>let</span> <span class='ident'>exp</span> <span class='op'>=</span> <span class='ident'>Vec</span>::<span class='ident'>new</span>();
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(<span class='kw-2'>&</span><span class='ident'>exp</span>));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>act</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_1_element</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>1</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(<span class='kw-2'>&</span>[<span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(<span class='kw-2'>&</span>[<span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>act</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_2_elements</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>2</span>, <span class='boolval'>false</span>);
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{:?}"</span>, <span class='ident'>b</span>), <span class='string'>"10"</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>b</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>b</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_10_elements</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>act</span>;
<span class='comment'>// all 0</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>10</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>((<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>])));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// all 1</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>10</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>((<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>])));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>10</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>4</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>((<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>])));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>10</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>5</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>6</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>7</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>8</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>9</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>((<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>])));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>10</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>6</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>9</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>((<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>])));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_31_elements</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>act</span>;
<span class='comment'>// all 0</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>31</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// all 1</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>31</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>31</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>4</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>5</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>6</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>7</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>31</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>16</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>17</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>18</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>19</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>20</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>21</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>22</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>23</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>31</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>24</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>25</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>26</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>27</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>28</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>29</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>30</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>31</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>17</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>30</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_32_elements</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>act</span>;
<span class='comment'>// all 0</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>32</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// all 1</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>32</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>32</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>4</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>5</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>6</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>7</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>32</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>16</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>17</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>18</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>19</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>20</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>21</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>22</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>23</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>32</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>24</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>25</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>26</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>27</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>28</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>29</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>30</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>31</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>32</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>17</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>30</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>31</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_33_elements</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>act</span>;
<span class='comment'>// all 0</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>33</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// all 1</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>33</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>33</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>4</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>5</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>6</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>7</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>33</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>16</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>17</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>18</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>19</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>20</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>21</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>22</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>23</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>33</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>24</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>25</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>26</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>27</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>28</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>29</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>30</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>31</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
<span class='comment'>// mixed</span>
<span class='ident'>act</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>33</span>, <span class='boolval'>false</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>17</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>30</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>31</span>, <span class='boolval'>true</span>);
<span class='ident'>act</span>.<span class='ident'>set</span>(<span class='number'>32</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>act</span>.<span class='ident'>eq_vec</span>(
<span class='kw-2'>&</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>,
<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>]));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>act</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_equal_differing_sizes</span>() {
<span class='kw'>let</span> <span class='ident'>v0</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>10</span>, <span class='boolval'>false</span>);
<span class='kw'>let</span> <span class='ident'>v1</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>11</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v0</span> <span class='op'>!=</span> <span class='ident'>v1</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_equal_greatly_differing_sizes</span>() {
<span class='kw'>let</span> <span class='ident'>v0</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>10</span>, <span class='boolval'>false</span>);
<span class='kw'>let</span> <span class='ident'>v1</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>110</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v0</span> <span class='op'>!=</span> <span class='ident'>v1</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_equal_sneaky_small</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>a</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>1</span>, <span class='boolval'>false</span>);
<span class='ident'>a</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>a</span>, <span class='ident'>b</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_equal_sneaky_big</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>a</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>100</span>, <span class='boolval'>false</span>);
<span class='kw'>for</span> <span class='ident'>i</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='number'>100</span> {
<span class='ident'>a</span>.<span class='ident'>set</span>(<span class='ident'>i</span>, <span class='boolval'>true</span>);
}
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>100</span>, <span class='boolval'>true</span>);
<span class='kw'>for</span> <span class='ident'>i</span> <span class='kw'>in</span> <span class='number'>0</span>..<span class='number'>100</span> {
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='ident'>i</span>, <span class='boolval'>true</span>);
}
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>a</span>, <span class='ident'>b</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_from_bytes</span>() {
<span class='kw'>let</span> <span class='ident'>bit_vec</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b10110110</span>, <span class='number'>0b00000000</span>, <span class='number'>0b11111111</span>]);
<span class='kw'>let</span> <span class='ident'>str</span> <span class='op'>=</span> <span class='macro'>concat</span><span class='macro'>!</span>(<span class='string'>"10110110"</span>, <span class='string'>"00000000"</span>, <span class='string'>"11111111"</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{:?}"</span>, <span class='ident'>bit_vec</span>), <span class='ident'>str</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_to_bytes</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>bv</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='ident'>bv</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bv</span>.<span class='ident'>to_bytes</span>(), [<span class='number'>0b10100000</span>]);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>bv</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>9</span>, <span class='boolval'>false</span>);
<span class='ident'>bv</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='ident'>bv</span>.<span class='ident'>set</span>(<span class='number'>8</span>, <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bv</span>.<span class='ident'>to_bytes</span>(), [<span class='number'>0b00100000</span>, <span class='number'>0b10000000</span>]);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_from_bools</span>() {
<span class='kw'>let</span> <span class='ident'>bools</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>];
<span class='kw'>let</span> <span class='ident'>bit_vec</span>: <span class='ident'>BitVec</span> <span class='op'>=</span> <span class='ident'>bools</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>n</span><span class='op'>|</span> <span class='op'>*</span><span class='ident'>n</span>).<span class='ident'>collect</span>();
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{:?}"</span>, <span class='ident'>bit_vec</span>), <span class='string'>"1011"</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_to_bools</span>() {
<span class='kw'>let</span> <span class='ident'>bools</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>, <span class='boolval'>false</span>];
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b00100110</span>]).<span class='ident'>iter</span>().<span class='ident'>collect</span>::<span class='op'><</span><span class='ident'>Vec</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>>></span>(), <span class='ident'>bools</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_bit_vec_iterator</span>() {
<span class='kw'>let</span> <span class='ident'>bools</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>];
<span class='kw'>let</span> <span class='ident'>bit_vec</span>: <span class='ident'>BitVec</span> <span class='op'>=</span> <span class='ident'>bools</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>n</span><span class='op'>|</span> <span class='op'>*</span><span class='ident'>n</span>).<span class='ident'>collect</span>();
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bit_vec</span>.<span class='ident'>iter</span>().<span class='ident'>collect</span>::<span class='op'><</span><span class='ident'>Vec</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>>></span>(), <span class='ident'>bools</span>);
<span class='kw'>let</span> <span class='ident'>long</span>: <span class='ident'>Vec</span><span class='op'><</span>_<span class='op'>></span> <span class='op'>=</span> (<span class='number'>0</span>..<span class='number'>10000</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>i</span><span class='op'>|</span> <span class='ident'>i</span> <span class='op'>%</span> <span class='number'>2</span> <span class='op'>==</span> <span class='number'>0</span>).<span class='ident'>collect</span>();
<span class='kw'>let</span> <span class='ident'>bit_vec</span>: <span class='ident'>BitVec</span> <span class='op'>=</span> <span class='ident'>long</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>n</span><span class='op'>|</span> <span class='op'>*</span><span class='ident'>n</span>).<span class='ident'>collect</span>();
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bit_vec</span>.<span class='ident'>iter</span>().<span class='ident'>collect</span>::<span class='op'><</span><span class='ident'>Vec</span><span class='op'><</span><span class='ident'>bool</span><span class='op'>>></span>(), <span class='ident'>long</span>)
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_small_difference</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b1</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>3</span>, <span class='boolval'>false</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b2</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>3</span>, <span class='boolval'>false</span>);
<span class='ident'>b1</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>b1</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>b2</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>b2</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b1</span>.<span class='ident'>difference</span>(<span class='kw-2'>&</span><span class='ident'>b2</span>));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b1</span>[<span class='number'>0</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>b1</span>[<span class='number'>1</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>b1</span>[<span class='number'>2</span>]);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_big_difference</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b1</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>100</span>, <span class='boolval'>false</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b2</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>100</span>, <span class='boolval'>false</span>);
<span class='ident'>b1</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='ident'>b1</span>.<span class='ident'>set</span>(<span class='number'>40</span>, <span class='boolval'>true</span>);
<span class='ident'>b2</span>.<span class='ident'>set</span>(<span class='number'>40</span>, <span class='boolval'>true</span>);
<span class='ident'>b2</span>.<span class='ident'>set</span>(<span class='number'>80</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b1</span>.<span class='ident'>difference</span>(<span class='kw-2'>&</span><span class='ident'>b2</span>));
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b1</span>[<span class='number'>0</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>b1</span>[<span class='number'>40</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>b1</span>[<span class='number'>80</span>]);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_small_clear</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>14</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>b</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>b</span>.<span class='ident'>all</span>());
<span class='ident'>b</span>.<span class='ident'>clear</span>();
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>b</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_big_clear</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>140</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>b</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='ident'>b</span>.<span class='ident'>all</span>());
<span class='ident'>b</span>.<span class='ident'>clear</span>();
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b</span>.<span class='ident'>none</span>() <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>b</span>.<span class='ident'>all</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_bit_vec_lt</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>a</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span>, <span class='boolval'>false</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span>(<span class='ident'>a</span> <span class='op'><</span> <span class='ident'>b</span>) <span class='op'>&&</span> <span class='op'>!</span>(<span class='ident'>b</span> <span class='op'><</span> <span class='ident'>a</span>));
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>a</span> <span class='op'><</span> <span class='ident'>b</span>);
<span class='ident'>a</span>.<span class='ident'>set</span>(<span class='number'>3</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>a</span> <span class='op'><</span> <span class='ident'>b</span>);
<span class='ident'>a</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span>(<span class='ident'>a</span> <span class='op'><</span> <span class='ident'>b</span>) <span class='op'>&&</span> <span class='ident'>b</span> <span class='op'><</span> <span class='ident'>a</span>);
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='number'>0</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>a</span> <span class='op'><</span> <span class='ident'>b</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_ord</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>a</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span>, <span class='boolval'>false</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span>, <span class='boolval'>false</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>a</span> <span class='op'><=</span> <span class='ident'>b</span> <span class='op'>&&</span> <span class='ident'>a</span> <span class='op'>>=</span> <span class='ident'>b</span>);
<span class='ident'>a</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>a</span> <span class='op'>></span> <span class='ident'>b</span> <span class='op'>&&</span> <span class='ident'>a</span> <span class='op'>>=</span> <span class='ident'>b</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b</span> <span class='op'><</span> <span class='ident'>a</span> <span class='op'>&&</span> <span class='ident'>b</span> <span class='op'><=</span> <span class='ident'>a</span>);
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='number'>1</span>, <span class='boolval'>true</span>);
<span class='ident'>b</span>.<span class='ident'>set</span>(<span class='number'>2</span>, <span class='boolval'>true</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>b</span> <span class='op'>></span> <span class='ident'>a</span> <span class='op'>&&</span> <span class='ident'>b</span> <span class='op'>>=</span> <span class='ident'>a</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>a</span> <span class='op'><</span> <span class='ident'>b</span> <span class='op'>&&</span> <span class='ident'>a</span> <span class='op'><=</span> <span class='ident'>b</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_small_bit_vec_tests</span>() {
<span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>all</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>any</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>none</span>());
<span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b00010100</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>all</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>any</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>none</span>());
<span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0xFF</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>all</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>any</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>none</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_big_bit_vec_tests</span>() {
<span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[ <span class='comment'>// 88 bits</span>
<span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>,
<span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>,
<span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>all</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>any</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>none</span>());
<span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[ <span class='comment'>// 88 bits</span>
<span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0b00010100</span>, <span class='number'>0</span>,
<span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0b00110100</span>,
<span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>all</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>any</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>none</span>());
<span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[ <span class='comment'>// 88 bits</span>
<span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>,
<span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>,
<span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>]);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>all</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>v</span>.<span class='ident'>any</span>());
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>v</span>.<span class='ident'>none</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_bit_vec_push_pop</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>2</span>, <span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>2</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>3</span>], <span class='boolval'>false</span>);
<span class='ident'>s</span>.<span class='ident'>push</span>(<span class='boolval'>true</span>);
<span class='ident'>s</span>.<span class='ident'>push</span>(<span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>2</span>], <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>1</span>], <span class='boolval'>true</span>);
<span class='comment'>// Here the internal vector will need to be extended</span>
<span class='ident'>s</span>.<span class='ident'>push</span>(<span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>], <span class='boolval'>false</span>);
<span class='ident'>s</span>.<span class='ident'>push</span>(<span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>+</span> <span class='number'>1</span>], <span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>+</span> <span class='number'>2</span>);
<span class='comment'>// Pop it all off</span>
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>pop</span>(), <span class='prelude-val'>Some</span>(<span class='boolval'>false</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>pop</span>(), <span class='prelude-val'>Some</span>(<span class='boolval'>false</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>pop</span>(), <span class='prelude-val'>Some</span>(<span class='boolval'>true</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>pop</span>(), <span class='prelude-val'>Some</span>(<span class='boolval'>true</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>2</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_bit_vec_truncate</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>, <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>, <span class='boolval'>true</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='ident'>s</span>.<span class='ident'>truncate</span>(<span class='number'>4</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>4</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>, <span class='boolval'>true</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>4</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='comment'>// Truncating to a size > s.len() should be a noop</span>
<span class='ident'>s</span>.<span class='ident'>truncate</span>(<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>4</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>, <span class='boolval'>true</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>4</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='ident'>s</span>.<span class='ident'>truncate</span>(<span class='number'>3</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>10</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>3</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>10</span>, <span class='boolval'>true</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>3</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>10</span>);
<span class='ident'>s</span>.<span class='ident'>truncate</span>(<span class='number'>0</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>0</span>, <span class='boolval'>true</span>));
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>0</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_bit_vec_reserve</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_elem</span>(<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>, <span class='boolval'>true</span>);
<span class='comment'>// Check capacity</span>
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>capacity</span>() <span class='op'>>=</span> <span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='ident'>s</span>.<span class='ident'>reserve</span>(<span class='number'>2</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>capacity</span>() <span class='op'>>=</span> <span class='number'>7</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='ident'>s</span>.<span class='ident'>reserve</span>(<span class='number'>7</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>capacity</span>() <span class='op'>>=</span> <span class='number'>12</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='ident'>s</span>.<span class='ident'>reserve_exact</span>(<span class='number'>7</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>capacity</span>() <span class='op'>>=</span> <span class='number'>12</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='ident'>s</span>.<span class='ident'>reserve</span>(<span class='number'>7</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>+</span> <span class='number'>1</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>capacity</span>() <span class='op'>>=</span> <span class='number'>12</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>+</span> <span class='number'>1</span>);
<span class='comment'>// Check that length hasn't changed</span>
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>.<span class='ident'>len</span>(), <span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span>);
<span class='ident'>s</span>.<span class='ident'>push</span>(<span class='boolval'>true</span>);
<span class='ident'>s</span>.<span class='ident'>push</span>(<span class='boolval'>false</span>);
<span class='ident'>s</span>.<span class='ident'>push</span>(<span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>1</span>], <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>-</span> <span class='number'>0</span>], <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>+</span> <span class='number'>1</span>], <span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>s</span>[<span class='number'>5</span> <span class='op'>*</span> <span class='ident'>U32_BITS</span> <span class='op'>+</span> <span class='number'>2</span>], <span class='boolval'>true</span>);
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_bit_vec_grow</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>bit_vec</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b10110110</span>, <span class='number'>0b00000000</span>, <span class='number'>0b10101010</span>]);
<span class='ident'>bit_vec</span>.<span class='ident'>grow</span>(<span class='number'>32</span>, <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bit_vec</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b10110110</span>, <span class='number'>0b00000000</span>, <span class='number'>0b10101010</span>,
<span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>]));
<span class='ident'>bit_vec</span>.<span class='ident'>grow</span>(<span class='number'>64</span>, <span class='boolval'>false</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bit_vec</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b10110110</span>, <span class='number'>0b00000000</span>, <span class='number'>0b10101010</span>,
<span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>]));
<span class='ident'>bit_vec</span>.<span class='ident'>grow</span>(<span class='number'>16</span>, <span class='boolval'>true</span>);
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bit_vec</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b10110110</span>, <span class='number'>0b00000000</span>, <span class='number'>0b10101010</span>,
<span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0</span>, <span class='number'>0xFF</span>, <span class='number'>0xFF</span>]));
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_bit_vec_extend</span>() {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>bit_vec</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b10110110</span>, <span class='number'>0b00000000</span>, <span class='number'>0b11111111</span>]);
<span class='kw'>let</span> <span class='ident'>ext</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b01001001</span>, <span class='number'>0b10010010</span>, <span class='number'>0b10111101</span>]);
<span class='ident'>bit_vec</span>.<span class='ident'>extend</span>(<span class='ident'>ext</span>.<span class='ident'>iter</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>bit_vec</span>, <span class='ident'>BitVec</span>::<span class='ident'>from_bytes</span>(<span class='kw-2'>&</span>[<span class='number'>0b10110110</span>, <span class='number'>0b00000000</span>, <span class='number'>0b11111111</span>,
<span class='number'>0b01001001</span>, <span class='number'>0b10010010</span>, <span class='number'>0b10111101</span>]));
}
<span class='comment'>/* nightly
#[test]
fn test_bit_vec_append() {
// Append to BitVec that holds a multiple of U32_BITS bits
let mut a = BitVec::from_bytes(&[0b10100000, 0b00010010, 0b10010010, 0b00110011]);
let mut b = BitVec::new();
b.push(false);
b.push(true);
b.push(true);
a.append(&mut b);
assert_eq!(a.len(), 35);
assert_eq!(b.len(), 0);
assert!(b.capacity() >= 3);
assert!(a.eq_vec(&[true, false, true, false, false, false, false, false,
false, false, false, true, false, false, true, false,
true, false, false, true, false, false, true, false,
false, false, true, true, false, false, true, true,
false, true, true]));
// Append to arbitrary BitVec
let mut a = BitVec::new();
a.push(true);
a.push(false);
let mut b = BitVec::from_bytes(&[0b10100000, 0b00010010, 0b10010010, 0b00110011, 0b10010101]);
a.append(&mut b);
assert_eq!(a.len(), 42);
assert_eq!(b.len(), 0);
assert!(b.capacity() >= 40);
assert!(a.eq_vec(&[true, false, true, false, true, false, false, false,
false, false, false, false, false, true, false, false,
true, false, true, false, false, true, false, false,
true, false, false, false, true, true, false, false,
true, true, true, false, false, true, false, true,
false, true]));
// Append to empty BitVec
let mut a = BitVec::new();
let mut b = BitVec::from_bytes(&[0b10100000, 0b00010010, 0b10010010, 0b00110011, 0b10010101]);
a.append(&mut b);
assert_eq!(a.len(), 40);
assert_eq!(b.len(), 0);
assert!(b.capacity() >= 40);
assert!(a.eq_vec(&[true, false, true, false, false, false, false, false,
false, false, false, true, false, false, true, false,
true, false, false, true, false, false, true, false,
false, false, true, true, false, false, true, true,
true, false, false, true, false, true, false, true]));
// Append empty BitVec
let mut a = BitVec::from_bytes(&[0b10100000, 0b00010010, 0b10010010, 0b00110011, 0b10010101]);
let mut b = BitVec::new();
a.append(&mut b);
assert_eq!(a.len(), 40);
assert_eq!(b.len(), 0);
assert!(a.eq_vec(&[true, false, true, false, false, false, false, false,
false, false, false, true, false, false, true, false,
true, false, false, true, false, false, true, false,
false, false, true, true, false, false, true, true,
true, false, false, true, false, true, false, true]));
}
#[test]
fn test_bit_vec_split_off() {
// Split at 0
let mut a = BitVec::new();
a.push(true);
a.push(false);
a.push(false);
a.push(true);
let b = a.split_off(0);
assert_eq!(a.len(), 0);
assert_eq!(b.len(), 4);
assert!(b.eq_vec(&[true, false, false, true]));
// Split at last bit
a.truncate(0);
a.push(true);
a.push(false);
a.push(false);
a.push(true);
let b = a.split_off(4);
assert_eq!(a.len(), 4);
assert_eq!(b.len(), 0);
assert!(a.eq_vec(&[true, false, false, true]));
// Split at block boundary
let mut a = BitVec::from_bytes(&[0b10100000, 0b00010010, 0b10010010, 0b00110011, 0b11110011]);
let b = a.split_off(32);
assert_eq!(a.len(), 32);
assert_eq!(b.len(), 8);
assert!(a.eq_vec(&[true, false, true, false, false, false, false, false,
false, false, false, true, false, false, true, false,
true, false, false, true, false, false, true, false,
false, false, true, true, false, false, true, true]));
assert!(b.eq_vec(&[true, true, true, true, false, false, true, true]));
// Don't split at block boundary
let mut a = BitVec::from_bytes(&[0b10100000, 0b00010010, 0b10010010, 0b00110011,
0b01101011, 0b10101101]);
let b = a.split_off(13);
assert_eq!(a.len(), 13);
assert_eq!(b.len(), 35);
assert!(a.eq_vec(&[true, false, true, false, false, false, false, false,
false, false, false, true, false]));
assert!(b.eq_vec(&[false, true, false, true, false, false, true, false,
false, true, false, false, false, true, true, false,
false, true, true, false, true, true, false, true,
false, true, true, true, false, true, false, true,
true, false, true]));
}
*/</span>
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_into_iter</span>() {
<span class='kw'>let</span> <span class='ident'>bools</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='boolval'>true</span>, <span class='boolval'>false</span>, <span class='boolval'>true</span>, <span class='boolval'>true</span>];
<span class='kw'>let</span> <span class='ident'>bit_vec</span>: <span class='ident'>BitVec</span> <span class='op'>=</span> <span class='ident'>bools</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>n</span><span class='op'>|</span> <span class='op'>*</span><span class='ident'>n</span>).<span class='ident'>collect</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>iter</span> <span class='op'>=</span> <span class='ident'>bit_vec</span>.<span class='ident'>into_iter</span>();
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>false</span>), <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>None</span>, <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>None</span>, <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='kw'>let</span> <span class='ident'>bit_vec</span>: <span class='ident'>BitVec</span> <span class='op'>=</span> <span class='ident'>bools</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>n</span><span class='op'>|</span> <span class='op'>*</span><span class='ident'>n</span>).<span class='ident'>collect</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>iter</span> <span class='op'>=</span> <span class='ident'>bit_vec</span>.<span class='ident'>into_iter</span>();
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>false</span>), <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>None</span>, <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>None</span>, <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='kw'>let</span> <span class='ident'>bit_vec</span>: <span class='ident'>BitVec</span> <span class='op'>=</span> <span class='ident'>bools</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>n</span><span class='op'>|</span> <span class='op'>*</span><span class='ident'>n</span>).<span class='ident'>collect</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>iter</span> <span class='op'>=</span> <span class='ident'>bit_vec</span>.<span class='ident'>into_iter</span>();
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>false</span>), <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>Some</span>(<span class='boolval'>true</span>), <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>None</span>, <span class='ident'>iter</span>.<span class='ident'>next</span>());
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='prelude-val'>None</span>, <span class='ident'>iter</span>.<span class='ident'>next_back</span>());
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>iter</span>() {
<span class='kw'>let</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>BitVec</span>::<span class='ident'>with_capacity</span>(<span class='number'>10</span>);
<span class='kw'>let</span> <span class='ident'>_a</span>: <span class='ident'>Iter</span> <span class='op'>=</span> <span class='ident'>b</span>.<span class='ident'>iter</span>();
}
}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>all</span>(<span class='ident'>test</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"nightly"</span>))]</span> <span class='kw'>mod</span> <span class='ident'>bench</span>;
</pre>
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