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</pre><pre class="rust ">
<span class="doccomment">//! Utility and debugging functions.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! ## Stability</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! Printing functions may be moved/renamed/removed at any time.</span>
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ops</span>::<span class="ident">Range</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">mem</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ptr</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">iter</span>;
<span class="kw">use</span> <span class="ident">num</span>::{<span class="ident">Integer</span>, <span class="ident">FromPrimitive</span>};
<span class="kw">use</span> <span class="ident">rand</span>;
<span class="kw">use</span> <span class="ident">rand</span>::<span class="ident">distributions</span>::{<span class="ident">IndependentSample</span>, <span class="ident">Range</span> <span class="kw">as</span> <span class="ident">RandRange</span>};
<span class="kw">use</span> <span class="ident">error</span>::{<span class="prelude-ty">Result</span> <span class="kw">as</span> <span class="ident">OclResult</span>, <span class="ident">Error</span> <span class="kw">as</span> <span class="ident">OclError</span>};
<span class="kw">use</span> ::{<span class="ident">OclPrm</span>, <span class="ident">OclScl</span>};
<span class="comment">//=============================================================================</span>
<span class="comment">//================================= MACROS ====================================</span>
<span class="comment">//=============================================================================</span>
<span class="comment">//=============================================================================</span>
<span class="comment">//================================ STATICS ====================================</span>
<span class="comment">//=============================================================================</span>
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">colors</span> {
<span class="doccomment">//! ASCII Color Palette</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! Used for printing functions.</span>
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">TAB</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">" "</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_DEFAULT</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[0m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_UNDER</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[1m"</span>;
<span class="comment">// 30–37</span>
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_RED</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[31m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_BRED</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[1;31m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_GRN</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[32m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_BGRN</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[1;32m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_ORA</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[33m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_DBL</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[34m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_PUR</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[35m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_CYA</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[36m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_LGR</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[37m"</span>;
<span class="comment">// [ADDME] 38: Extended Colors</span>
<span class="comment">// pub static C_EXT38: &'static str = "\x1b[38m";</span>
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_DFLT</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[39m"</span>;
<span class="comment">// 90-97</span>
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_DGR</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[90m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_LRD</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[91m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_YEL</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[93m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_BLU</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[94m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_LBL</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[94m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">C_MAG</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[95m"</span>;
<span class="comment">// [ADDME] 38: Extended Colors</span>
<span class="comment">// pub static C_EXT38: &'static str = "\x1b[38m";</span>
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">BGC_DEFAULT</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[49m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">BGC_GRN</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[42m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">BGC_PUR</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[45m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">BGC_LGR</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[47m"</span>;
<span class="kw">pub</span> <span class="kw">static</span> <span class="ident">BGC_DGR</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="string">"\x1b[100m"</span>;
}
<span class="comment">//=============================================================================</span>
<span class="comment">//=========================== UTILITY FUNCTIONS ===============================</span>
<span class="comment">//=============================================================================</span>
<span class="doccomment">/// Copies a byte slice to a new `u32`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Stability</span>
<span class="doccomment">///</span>
<span class="doccomment">/// May depricate in favor of `bytes_to`</span>
<span class="doccomment">///</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bytes_to_u32</span>(<span class="ident">bytes</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">u32</span> {
<span class="macro">debug_assert</span><span class="macro">!</span>(<span class="ident">bytes</span>.<span class="ident">len</span>() <span class="op">==</span> <span class="number">4</span>);
<span class="ident">bytes</span>[<span class="number">0</span>] <span class="kw">as</span> <span class="ident">u32</span> <span class="op">|</span>
((<span class="ident">bytes</span>[<span class="number">1</span>] <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="number">8</span>) <span class="op">|</span>
((<span class="ident">bytes</span>[<span class="number">2</span>] <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="number">16</span>) <span class="op">|</span>
((<span class="ident">bytes</span>[<span class="number">3</span>] <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="number">24</span>)
}
<span class="doccomment">/// Copies a slice of bytes to a new value of arbitrary type.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Safety</span>
<span class="doccomment">///</span>
<span class="doccomment">/// You may want to wear a helmet.</span>
<span class="doccomment">///</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">bytes_to</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="ident">bytes</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
<span class="kw">if</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>() <span class="op">==</span> <span class="ident">bytes</span>.<span class="ident">len</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">new_val</span>: <span class="ident">T</span> <span class="op">=</span> <span class="ident">mem</span>::<span class="ident">uninitialized</span>();
<span class="ident">ptr</span>::<span class="ident">copy</span>(<span class="ident">bytes</span>.<span class="ident">as_ptr</span>(), <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">new_val</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> _ <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">u8</span>, <span class="ident">bytes</span>.<span class="ident">len</span>());
<span class="prelude-val">Ok</span>(<span class="ident">new_val</span>)
} <span class="kw">else</span> {
<span class="ident">OclError</span>::<span class="ident">err_string</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"The size of the source byte slice ({} bytes) \
does not match the size of the destination type ({} bytes)."</span>, <span class="ident">bytes</span>.<span class="ident">len</span>(),
<span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>()))
}
}
<span class="doccomment">/// Converts a vector of bytes into a value of arbitrary type.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Safety</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Roughly equivalent to a weekend in Tijuana.</span>
<span class="doccomment">///</span>
<span class="comment">// [NOTE]: Not sure this is the best or simplest way to do this but whatever.</span>
<span class="comment">// Would be nice to not even have to copy anything and just basically</span>
<span class="comment">// transmute the vector into the result type. [TODO]: Fiddle with this</span>
<span class="comment">// at some point.</span>
<span class="comment">//</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">bytes_into</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="ident">vec</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
<span class="kw">if</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>() <span class="op">==</span> <span class="ident">vec</span>.<span class="ident">len</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">new_val</span>: <span class="ident">T</span> <span class="op">=</span> <span class="ident">mem</span>::<span class="ident">uninitialized</span>();
<span class="ident">ptr</span>::<span class="ident">copy</span>(<span class="ident">vec</span>.<span class="ident">as_ptr</span>(), <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">new_val</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> _ <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">u8</span>, <span class="ident">vec</span>.<span class="ident">len</span>());
<span class="prelude-val">Ok</span>(<span class="ident">new_val</span>)
} <span class="kw">else</span> {
<span class="ident">OclError</span>::<span class="ident">err_string</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"The size of the source byte vector ({} bytes) \
does not match the size of the destination type ({} bytes)."</span>, <span class="ident">vec</span>.<span class="ident">len</span>(),
<span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>()))
}
}
<span class="doccomment">/// Converts a vector of bytes into a vector of arbitrary type.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Safety</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Ummm... Say what?</span>
<span class="doccomment">///</span>
<span class="doccomment">/// TODO: Consider using `alloc::heap::reallocate_inplace` equivalent.</span>
<span class="doccomment">///</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">bytes_into_vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="ident">vec</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> {
<span class="comment">// debug_assert!(vec.len() % mem::size_of::<T>() == 0);</span>
<span class="kw">if</span> <span class="ident">vec</span>.<span class="ident">len</span>() <span class="op">%</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>() <span class="op">==</span> <span class="number">0</span> {
<span class="kw">let</span> <span class="ident">new_len</span> <span class="op">=</span> <span class="ident">vec</span>.<span class="ident">len</span>() <span class="op">/</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>();
<span class="kw">let</span> <span class="ident">new_cap</span> <span class="op">=</span> <span class="ident">vec</span>.<span class="ident">capacity</span>() <span class="op">/</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>();
<span class="kw">let</span> <span class="ident">ptr</span> <span class="op">=</span> <span class="ident">vec</span>.<span class="ident">as_mut_ptr</span>();
<span class="ident">mem</span>::<span class="ident">forget</span>(<span class="ident">vec</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">new_vec</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">from_raw_parts</span>(<span class="ident">ptr</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">T</span>, <span class="ident">new_len</span>, <span class="ident">new_cap</span>);
<span class="ident">new_vec</span>.<span class="ident">shrink_to_fit</span>();
<span class="prelude-val">Ok</span>(<span class="ident">new_vec</span>)
} <span class="kw">else</span> {
<span class="ident">OclError</span>::<span class="ident">err_conversion</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"The size of the source byte vector ({} bytes) is not \
evenly divisible by the size of the destination type ({} bytes)."</span>, <span class="ident">vec</span>.<span class="ident">len</span>(),
<span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>()))
}
}
<span class="doccomment">/// Copies a slice of bytes into a vector of arbitrary type.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Safety</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Negative.</span>
<span class="doccomment">///</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">bytes_to_vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="ident">bytes</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> {
<span class="comment">// debug_assert!(bytes.len() % mem::size_of::<T>() == 0);</span>
<span class="kw">if</span> <span class="ident">bytes</span>.<span class="ident">len</span>() <span class="op">%</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>() <span class="op">==</span> <span class="number">0</span> {
<span class="kw">let</span> <span class="ident">new_len</span> <span class="op">=</span> <span class="ident">bytes</span>.<span class="ident">len</span>() <span class="op">/</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">new_vec</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">with_capacity</span>(<span class="ident">new_len</span>);
<span class="ident">ptr</span>::<span class="ident">copy</span>(<span class="ident">bytes</span>.<span class="ident">as_ptr</span>(), <span class="ident">new_vec</span>.<span class="ident">as_mut_ptr</span>() <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> _ <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">u8</span>, <span class="ident">bytes</span>.<span class="ident">len</span>());
<span class="ident">new_vec</span>.<span class="ident">set_len</span>(<span class="ident">new_len</span>);
<span class="prelude-val">Ok</span>(<span class="ident">new_vec</span>)
} <span class="kw">else</span> {
<span class="ident">OclError</span>::<span class="ident">err_conversion</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"The size of the source byte slice ({} bytes) is not \
evenly divisible by the size of the destination type ({} bytes)."</span>, <span class="ident">bytes</span>.<span class="ident">len</span>(),
<span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>()))
}
}
<span class="doccomment">/// Converts a byte Vec into a string, removing the trailing null byte if it</span>
<span class="doccomment">/// exists.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bytes_into_string</span>(<span class="kw-2">mut</span> <span class="ident">bytes</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> {
<span class="kw">if</span> <span class="ident">bytes</span>.<span class="ident">last</span>() <span class="op">==</span> <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">0u8</span>) {
<span class="ident">bytes</span>.<span class="ident">pop</span>();
}
<span class="ident">String</span>::<span class="ident">from_utf8</span>(<span class="ident">bytes</span>).<span class="ident">map_err</span>(<span class="ident">OclError</span>::<span class="ident">from</span>)
}
<span class="doccomment">/// Converts a byte Vec into a string, removing the trailing null byte if it</span>
<span class="doccomment">/// exists, then removes leading and trailing whitespace.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bytes_into_trimmed_string</span>(<span class="kw-2">mut</span> <span class="ident">bytes</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> {
<span class="kw">if</span> <span class="ident">bytes</span>.<span class="ident">last</span>() <span class="op">==</span> <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">0u8</span>) {
<span class="ident">bytes</span>.<span class="ident">pop</span>();
}
<span class="kw">let</span> <span class="ident">string</span> <span class="op">=</span> <span class="ident">String</span>::<span class="ident">from_utf8</span>(<span class="ident">bytes</span>).<span class="ident">map_err</span>(<span class="ident">OclError</span>::<span class="ident">from</span>)<span class="question-mark">?</span>;
<span class="prelude-val">Ok</span>(<span class="ident">String</span>::<span class="ident">from</span>(<span class="ident">string</span>.<span class="ident">trim</span>()))
}
<span class="doccomment">/// [UNTESTED] Copies an arbitrary primitive or struct into core bytes.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Depth</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This is not a deep copy, will only copy the surface of primitives, structs,</span>
<span class="doccomment">/// etc. Not 100% sure about what happens with other types but should copy</span>
<span class="doccomment">/// everything zero levels deep.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Endianness</span>
<span class="doccomment">///</span>
<span class="doccomment">/// 98% sure (speculative) this will always be correct due to the driver</span>
<span class="doccomment">/// automatically taking it into account.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Safety</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Don't ask.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [FIXME]: Evaluate the ins and outs of this and lock this down a bit.</span>
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">into_bytes</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="ident">val</span>: <span class="ident">T</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">// let big_endian = false;</span>
<span class="kw">let</span> <span class="ident">size</span> <span class="op">=</span> <span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op"><</span><span class="ident">T</span><span class="op">></span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">new_vec</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span> <span class="op">=</span> <span class="ident">iter</span>::<span class="ident">repeat</span>(<span class="number">0</span>).<span class="ident">take</span>(<span class="ident">size</span>).<span class="ident">collect</span>();
<span class="ident">ptr</span>::<span class="ident">copy</span>(<span class="kw-2">&</span><span class="ident">val</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> _ <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">u8</span>, <span class="ident">new_vec</span>.<span class="ident">as_mut_ptr</span>(), <span class="ident">size</span>);
<span class="comment">// if big_endian {</span>
<span class="comment">// new_vec = new_vec.into_iter().rev().collect();</span>
<span class="comment">// }</span>
<span class="ident">new_vec</span>
}
<span class="doccomment">/// Pads `len` to make it evenly divisible by `incr`.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">padded_len</span>(<span class="ident">len</span>: <span class="ident">usize</span>, <span class="ident">incr</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">usize</span> {
<span class="kw">let</span> <span class="ident">len_mod</span> <span class="op">=</span> <span class="ident">len</span> <span class="op">%</span> <span class="ident">incr</span>;
<span class="kw">if</span> <span class="ident">len_mod</span> <span class="op">==</span> <span class="number">0</span> {
<span class="ident">len</span>
} <span class="kw">else</span> {
<span class="kw">let</span> <span class="ident">pad</span> <span class="op">=</span> <span class="ident">incr</span> <span class="op">-</span> <span class="ident">len_mod</span>;
<span class="kw">let</span> <span class="ident">padded_len</span> <span class="op">=</span> <span class="ident">len</span> <span class="op">+</span> <span class="ident">pad</span>;
<span class="macro">debug_assert_eq</span><span class="macro">!</span>(<span class="ident">padded_len</span> <span class="op">%</span> <span class="ident">incr</span>, <span class="number">0</span>);
<span class="ident">padded_len</span>
}
}
<span class="doccomment">/// Batch removes elements from a vector using a list of indices to remove.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Will create a new vector and do a streamlined rebuild if</span>
<span class="doccomment">/// `remove_list.len()` > `rebuild_threshold`. Threshold should typically be</span>
<span class="doccomment">/// set very low (less than probably 5 or 10) as it's expensive to remove one</span>
<span class="doccomment">/// by one.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ### Safety</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Should be perfectly safe, just need to test it a bit.</span>
<span class="doccomment">///</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">vec_remove_rebuild</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Clone</span> <span class="op">+</span> <span class="ident">Copy</span><span class="op">></span>(<span class="ident">orig_vec</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>, <span class="ident">remove_list</span>: <span class="kw-2">&</span>[<span class="ident">usize</span>],
<span class="ident">rebuild_threshold</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span>()<span class="op">></span> {
<span class="kw">if</span> <span class="ident">remove_list</span>.<span class="ident">len</span>() <span class="op">></span> <span class="ident">orig_vec</span>.<span class="ident">len</span>() {
<span class="kw">return</span> <span class="ident">OclError</span>::<span class="ident">err_string</span>(<span class="string">"ocl::util::vec_remove_rebuild: Remove list is longer than source
vector."</span>);
}
<span class="kw">let</span> <span class="ident">orig_len</span> <span class="op">=</span> <span class="ident">orig_vec</span>.<span class="ident">len</span>();
<span class="comment">// If the list is below threshold</span>
<span class="kw">if</span> <span class="ident">remove_list</span>.<span class="ident">len</span>() <span class="op"><=</span> <span class="ident">rebuild_threshold</span> {
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">idx</span> <span class="kw">in</span> <span class="ident">remove_list</span>.<span class="ident">iter</span>().<span class="ident">rev</span>() {
<span class="kw">if</span> <span class="ident">idx</span> <span class="op"><</span> <span class="ident">orig_len</span> {
<span class="ident">orig_vec</span>.<span class="ident">remove</span>(<span class="ident">idx</span>);
} <span class="kw">else</span> {
<span class="kw">return</span> <span class="ident">OclError</span>::<span class="ident">err_string</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"ocl::util::remove_rebuild_vec: 'remove_list' \
contains at least one out of range index: [{}] ('orig_vec.len()': {})."</span>,
<span class="ident">idx</span>, <span class="ident">orig_len</span>));
}
}
} <span class="kw">else</span> {
<span class="kw">unsafe</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">remove_markers</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">bool</span><span class="op">></span> <span class="op">=</span> <span class="ident">iter</span>::<span class="ident">repeat</span>(<span class="bool-val">true</span>).<span class="ident">take</span>(<span class="ident">orig_len</span>).<span class="ident">collect</span>();
<span class="comment">// Build a sparse list of which elements to remove:</span>
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">idx</span> <span class="kw">in</span> <span class="ident">remove_list</span>.<span class="ident">iter</span>() {
<span class="kw">if</span> <span class="ident">idx</span> <span class="op"><</span> <span class="ident">orig_len</span> {
<span class="kw-2">*</span><span class="ident">remove_markers</span>.<span class="ident">get_unchecked_mut</span>(<span class="ident">idx</span>) <span class="op">=</span> <span class="bool-val">false</span>;
} <span class="kw">else</span> {
<span class="kw">return</span> <span class="ident">OclError</span>::<span class="ident">err_string</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"ocl::util::remove_rebuild_vec: 'remove_list' \
contains at least one out of range index: [{}] ('orig_vec.len()': {})."</span>,
<span class="ident">idx</span>, <span class="ident">orig_len</span>));
}
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">new_len</span> <span class="op">=</span> <span class="number">0usize</span>;
<span class="comment">// Iterate through remove_markers and orig_vec, pushing when the marker is false:</span>
<span class="kw">for</span> <span class="ident">idx</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">orig_len</span> {
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">remove_markers</span>.<span class="ident">get_unchecked</span>(<span class="ident">idx</span>) {
<span class="kw-2">*</span><span class="ident">orig_vec</span>.<span class="ident">get_unchecked_mut</span>(<span class="ident">new_len</span>) <span class="op">=</span> <span class="kw-2">*</span><span class="ident">orig_vec</span>.<span class="ident">get_unchecked</span>(<span class="ident">idx</span>);
<span class="ident">new_len</span> <span class="op">+=</span> <span class="number">1</span>;
}
}
<span class="macro">debug_assert_eq</span><span class="macro">!</span>(<span class="ident">new_len</span>, <span class="ident">orig_len</span> <span class="op">-</span> <span class="ident">remove_list</span>.<span class="ident">len</span>());
<span class="ident">orig_vec</span>.<span class="ident">set_len</span>(<span class="ident">new_len</span>);
}
}
<span class="prelude-val">Ok</span>(())
}
<span class="doccomment">/// Wraps (`%`) each value in the list `vals` if it equals or exceeds `val_n`.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">wrap_vals</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">OclPrm</span> <span class="op">+</span> <span class="ident">Integer</span><span class="op">></span>(<span class="ident">vals</span>: <span class="kw-2">&</span>[<span class="ident">T</span>], <span class="ident">val_n</span>: <span class="ident">T</span>) <span class="op">-></span> <span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
<span class="ident">vals</span>.<span class="ident">iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="kw-2">&</span><span class="ident">v</span><span class="op">|</span> <span class="ident">v</span> <span class="op">%</span> <span class="ident">val_n</span>).<span class="ident">collect</span>()
}
<span class="doccomment">/// Returns a vector with length `size` containing random values in the (half-open)</span>
<span class="doccomment">/// range `[vals.0, vals.1)`.</span>
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rand"</span>)]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">scrambled_vec</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">OclScl</span><span class="op">></span>(<span class="ident">vals</span>: (<span class="ident">T</span>, <span class="ident">T</span>), <span class="ident">size</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">size</span> <span class="op">></span> <span class="number">0</span>, <span class="string">"\nbuffer::shuffled_vec(): Vector size must be greater than zero."</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">vals</span>.<span class="number">0</span> <span class="op"><</span> <span class="ident">vals</span>.<span class="number">1</span>, <span class="string">"\nbuffer::shuffled_vec(): Minimum value must be less than maximum."</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rng</span> <span class="op">=</span> <span class="ident">rand</span>::<span class="ident">weak_rng</span>();
<span class="kw">let</span> <span class="ident">range</span> <span class="op">=</span> <span class="ident">RandRange</span>::<span class="ident">new</span>(<span class="ident">vals</span>.<span class="number">0</span>, <span class="ident">vals</span>.<span class="number">1</span>);
(<span class="number">0</span>..<span class="ident">size</span>).<span class="ident">map</span>(<span class="op">|</span>_<span class="op">|</span> <span class="ident">range</span>.<span class="ident">ind_sample</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">rng</span>)).<span class="ident">take</span>(<span class="ident">size</span> <span class="kw">as</span> <span class="ident">usize</span>).<span class="ident">collect</span>()
}
<span class="doccomment">/// Returns a vector with length `size` which is first filled with each integer value</span>
<span class="doccomment">/// in the (inclusive) range `[vals.0, vals.1]`. If `size` is greater than the</span>
<span class="doccomment">/// number of integers in the aforementioned range, the integers will repeat. After</span>
<span class="doccomment">/// being filled with `size` values, the vector is shuffled and the order of its</span>
<span class="doccomment">/// values is randomized.</span>
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rand"</span>)]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">shuffled_vec</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">OclScl</span><span class="op">></span>(<span class="ident">vals</span>: (<span class="ident">T</span>, <span class="ident">T</span>), <span class="ident">size</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">vec</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">with_capacity</span>(<span class="ident">size</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">size</span> <span class="op">></span> <span class="number">0</span>, <span class="string">"\nbuffer::shuffled_vec(): Vector size must be greater than zero."</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">vals</span>.<span class="number">0</span> <span class="op"><</span> <span class="ident">vals</span>.<span class="number">1</span>, <span class="string">"\nbuffer::shuffled_vec(): Minimum value must be less than maximum."</span>);
<span class="kw">let</span> <span class="ident">min</span> <span class="op">=</span> <span class="ident">vals</span>.<span class="number">0</span>.<span class="ident">to_i64</span>().<span class="ident">expect</span>(<span class="string">"\nbuffer::shuffled_vec(), min"</span>);
<span class="kw">let</span> <span class="ident">max</span> <span class="op">=</span> <span class="ident">vals</span>.<span class="number">1</span>.<span class="ident">to_i64</span>().<span class="ident">expect</span>(<span class="string">"\nbuffer::shuffled_vec(), max"</span>) <span class="op">+</span> <span class="number">1</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">range</span> <span class="op">=</span> (<span class="ident">min</span>..<span class="ident">max</span>).<span class="ident">cycle</span>();
<span class="kw">for</span> _ <span class="kw">in</span> <span class="number">0</span>..<span class="ident">size</span> {
<span class="ident">vec</span>.<span class="ident">push</span>(<span class="ident">FromPrimitive</span>::<span class="ident">from_i64</span>(<span class="ident">range</span>.<span class="ident">next</span>().<span class="ident">expect</span>(<span class="string">"\nbuffer::shuffled_vec(), range"</span>))
.<span class="ident">expect</span>(<span class="string">"\nbuffer::shuffled_vec(), from_usize"</span>));
}
<span class="ident">shuffle</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">vec</span>);
<span class="ident">vec</span>
}
<span class="doccomment">/// Shuffles the values in a vector using a single pass of Fisher-Yates with a</span>
<span class="doccomment">/// weak (not cryptographically secure) random number generator.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">shuffle</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">OclScl</span><span class="op">></span>(<span class="ident">vec</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">T</span>]) {
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">vec</span>.<span class="ident">len</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rng</span> <span class="op">=</span> <span class="ident">rand</span>::<span class="ident">weak_rng</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ridx</span>: <span class="ident">usize</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">tmp</span>: <span class="ident">T</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">ridx</span> <span class="op">=</span> <span class="ident">RandRange</span>::<span class="ident">new</span>(<span class="ident">i</span>, <span class="ident">len</span>).<span class="ident">ind_sample</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">rng</span>);
<span class="ident">tmp</span> <span class="op">=</span> <span class="ident">vec</span>[<span class="ident">i</span>];
<span class="ident">vec</span>[<span class="ident">i</span>] <span class="op">=</span> <span class="ident">vec</span>[<span class="ident">ridx</span>];
<span class="ident">vec</span>[<span class="ident">ridx</span>] <span class="op">=</span> <span class="ident">tmp</span>;
}
}
<span class="comment">// /// Converts a length in `T` to a size in bytes.</span>
<span class="comment">// #[inline]</span>
<span class="comment">// pub fn len_to_size<T>(len: usize) -> usize {</span>
<span class="comment">// len * mem::size_of::<T>()</span>
<span class="comment">// }</span>
<span class="comment">// /// Converts lengths in `T` to sizes in bytes for a `[usize; 3]`.</span>
<span class="comment">// #[inline]</span>
<span class="comment">// pub fn len3_to_size3<T>(lens: [usize; 3]) -> [usize; 3] {</span>
<span class="comment">// [len_to_size::<T>(lens[0]), len_to_size::<T>(lens[1]), len_to_size::<T>(lens[2])]</span>
<span class="comment">// }</span>
<span class="comment">// /// Converts lengths in `T` to sizes in bytes for a `&[usize]`.</span>
<span class="comment">// pub fn lens_to_sizes<T>(lens: &[usize]) -> Vec<usize> {</span>
<span class="comment">// lens.iter().map(|len| len * mem::size_of::<T>()).collect()</span>
<span class="comment">// }</span>
<span class="comment">//=============================================================================</span>
<span class="comment">//=========================== PRINTING FUNCTIONS ==============================</span>
<span class="comment">//=============================================================================</span>
<span class="doccomment">/// Does what is says it's gonna.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">print_bytes_as_hex</span>(<span class="ident">bytes</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) {
<span class="macro">print</span><span class="macro">!</span>(<span class="string">"0x"</span>);
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">byte</span> <span class="kw">in</span> <span class="ident">bytes</span>.<span class="ident">iter</span>() {
<span class="macro">print</span><span class="macro">!</span>(<span class="string">"{:x}"</span>, <span class="ident">byte</span>);
}
}
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">unused_assignments</span>, <span class="ident">unused_variables</span>)]</span>
<span class="doccomment">/// [UNSTABLE]: MAY BE REMOVED AT ANY TIME</span>
<span class="doccomment">/// Prints a vector to stdout. Used for debugging.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">print_slice</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">OclScl</span><span class="op">></span>(
<span class="ident">vec</span>: <span class="kw-2">&</span>[<span class="ident">T</span>],
<span class="ident">every</span>: <span class="ident">usize</span>,
<span class="ident">val_range</span>: <span class="prelude-ty">Option</span><span class="op"><</span>(<span class="ident">T</span>, <span class="ident">T</span>)<span class="op">></span>,
<span class="ident">idx_range</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Range</span><span class="op"><</span><span class="ident">usize</span><span class="op">>></span>,
<span class="ident">show_zeros</span>: <span class="ident">bool</span>,
) {
<span class="macro">print</span><span class="macro">!</span>( <span class="string">"{cdgr}[{cg}{}{cdgr}/{}"</span>, <span class="ident">vec</span>.<span class="ident">len</span>(), <span class="ident">every</span>, <span class="ident">cg</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_GRN</span>, <span class="ident">cdgr</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DGR</span>);
<span class="kw">let</span> (<span class="ident">vr_start</span>, <span class="ident">vr_end</span>) <span class="op">=</span> <span class="kw">match</span> <span class="ident">val_range</span> {
<span class="prelude-val">Some</span>(<span class="ident">vr</span>) <span class="op">=></span> {
<span class="macro">print</span><span class="macro">!</span>( <span class="string">";({}-{})"</span>, <span class="ident">vr</span>.<span class="number">0</span>, <span class="ident">vr</span>.<span class="number">1</span>);
<span class="ident">vr</span>
},
<span class="prelude-val">None</span> <span class="op">=></span> (<span class="ident">Default</span>::<span class="ident">default</span>(), <span class="ident">Default</span>::<span class="ident">default</span>()),
};
<span class="kw">let</span> (<span class="ident">ir_start</span>, <span class="ident">ir_end</span>) <span class="op">=</span> <span class="kw">match</span> <span class="ident">idx_range</span> {
<span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">ir</span>) <span class="op">=></span> {
<span class="macro">print</span><span class="macro">!</span>( <span class="string">";[{}..{}]"</span>, <span class="ident">ir</span>.<span class="ident">start</span>, <span class="ident">ir</span>.<span class="ident">end</span>);
(<span class="ident">ir</span>.<span class="ident">start</span>, <span class="ident">ir</span>.<span class="ident">end</span>)
},
<span class="prelude-val">None</span> <span class="op">=></span> (<span class="number">0usize</span>, <span class="number">0usize</span>),
};
<span class="macro">print</span><span class="macro">!</span>( <span class="string">"]:{cd} "</span>, <span class="ident">cd</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DEFAULT</span>,);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ttl_nz</span> <span class="op">=</span> <span class="number">0usize</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ttl_ir</span> <span class="op">=</span> <span class="number">0usize</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">within_idx_range</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">within_val_range</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">hi</span>: <span class="ident">T</span> <span class="op">=</span> <span class="ident">vr_start</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lo</span>: <span class="ident">T</span> <span class="op">=</span> <span class="ident">vr_end</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">sum</span>: <span class="ident">i64</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ttl_prntd</span>: <span class="ident">usize</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">vec</span>.<span class="ident">len</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">color</span>: <span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DEFAULT</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">prnt</span>: <span class="ident">bool</span> <span class="op">=</span> <span class="bool-val">false</span>;
<span class="comment">// Yes, this clusterfuck needs rewriting someday</span>
<span class="kw">for</span> (<span class="ident">i</span>, <span class="ident">item</span>) <span class="kw">in</span> <span class="ident">vec</span>.<span class="ident">iter</span>().<span class="ident">enumerate</span>() {
<span class="ident">prnt</span> <span class="op">=</span> <span class="bool-val">false</span>;
<span class="kw">if</span> <span class="ident">every</span> <span class="op">!=</span> <span class="number">0</span> {
<span class="kw">if</span> <span class="ident">i</span> <span class="op">%</span> <span class="ident">every</span> <span class="op">==</span> <span class="number">0</span> {
<span class="ident">prnt</span> <span class="op">=</span> <span class="bool-val">true</span>;
} <span class="kw">else</span> {
<span class="ident">prnt</span> <span class="op">=</span> <span class="bool-val">false</span>;
}
}
<span class="kw">if</span> <span class="ident">idx_range</span>.<span class="ident">is_some</span>() {
<span class="kw">let</span> <span class="ident">ir</span> <span class="op">=</span> <span class="ident">idx_range</span>.<span class="ident">as_ref</span>().<span class="ident">expect</span>(<span class="string">"ocl::buffer::print_vec()"</span>);
<span class="kw">if</span> <span class="ident">i</span> <span class="op"><</span> <span class="ident">ir_start</span> <span class="op">||</span> <span class="ident">i</span> <span class="op">>=</span> <span class="ident">ir_end</span> {
<span class="ident">prnt</span> <span class="op">=</span> <span class="bool-val">false</span>;
<span class="ident">within_idx_range</span> <span class="op">=</span> <span class="bool-val">false</span>;
} <span class="kw">else</span> {
<span class="ident">within_idx_range</span> <span class="op">=</span> <span class="bool-val">true</span>;
}
} <span class="kw">else</span> {
<span class="ident">within_idx_range</span> <span class="op">=</span> <span class="bool-val">true</span>;
}
<span class="kw">if</span> <span class="ident">val_range</span>.<span class="ident">is_some</span>() {
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">item</span> <span class="op"><</span> <span class="ident">vr_start</span> <span class="op">||</span> <span class="kw-2">*</span><span class="ident">item</span> <span class="op">></span> <span class="ident">vr_end</span> {
<span class="ident">prnt</span> <span class="op">=</span> <span class="bool-val">false</span>;
<span class="ident">within_val_range</span> <span class="op">=</span> <span class="bool-val">false</span>;
} <span class="kw">else</span> {
<span class="kw">if</span> <span class="ident">within_idx_range</span> {
<span class="comment">// if *item == Default::default() {</span>
<span class="comment">// ttl_ir += 1;</span>
<span class="comment">// } else {</span>
<span class="comment">// ttl_ir += 1;</span>
<span class="comment">// }</span>
<span class="ident">ttl_ir</span> <span class="op">+=</span> <span class="number">1</span>;
}
<span class="ident">within_val_range</span> <span class="op">=</span> <span class="bool-val">true</span>;
}
}
<span class="kw">if</span> <span class="ident">within_idx_range</span> <span class="op">&&</span> <span class="ident">within_val_range</span> {
<span class="ident">sum</span> <span class="op">+=</span> <span class="ident">item</span>.<span class="ident">to_i64</span>().<span class="ident">expect</span>(<span class="string">"ocl::buffer::print_vec(): vec[i]"</span>);
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">item</span> <span class="op">></span> <span class="ident">hi</span> { <span class="ident">hi</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">item</span> };
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">item</span> <span class="op"><</span> <span class="ident">lo</span> { <span class="ident">lo</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">item</span> };
<span class="kw">if</span> <span class="ident">vec</span>[<span class="ident">i</span>] <span class="op">!=</span> <span class="ident">Default</span>::<span class="ident">default</span>() {
<span class="ident">ttl_nz</span> <span class="op">+=</span> <span class="number">1usize</span>;
<span class="ident">color</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_ORA</span>;
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">show_zeros</span> {
<span class="ident">color</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DEFAULT</span>;
} <span class="kw">else</span> {
<span class="ident">prnt</span> <span class="op">=</span> <span class="bool-val">false</span>;
}
}
<span class="kw">if</span> <span class="ident">prnt</span> {
<span class="macro">print</span><span class="macro">!</span>( <span class="string">"{cg}[{cd}{}{cg}:{cc}{}{cg}]{cd}"</span>, <span class="ident">i</span>, <span class="ident">vec</span>[<span class="ident">i</span>], <span class="ident">cc</span> <span class="op">=</span> <span class="ident">color</span>, <span class="ident">cd</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DEFAULT</span>, <span class="ident">cg</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DGR</span>);
<span class="ident">ttl_prntd</span> <span class="op">+=</span> <span class="number">1</span>;
}
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">anz</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="number">0f32</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">nz_pct</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="number">0f32</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ir_pct</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="number">0f32</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">avg_ir</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="number">0f32</span>;
<span class="kw">if</span> <span class="ident">ttl_nz</span> <span class="op">></span> <span class="number">0</span> {
<span class="ident">anz</span> <span class="op">=</span> <span class="ident">sum</span> <span class="kw">as</span> <span class="ident">f32</span> <span class="op">/</span> <span class="ident">ttl_nz</span> <span class="kw">as</span> <span class="ident">f32</span>;
<span class="ident">nz_pct</span> <span class="op">=</span> (<span class="ident">ttl_nz</span> <span class="kw">as</span> <span class="ident">f32</span> <span class="op">/</span> <span class="ident">len</span> <span class="kw">as</span> <span class="ident">f32</span>) <span class="op">*</span> <span class="number">100f32</span>;
<span class="comment">//print!( "[ttl_nz: {}, nz_pct: {:.0}%, len: {}]", ttl_nz, nz_pct, len);</span>
}
<span class="kw">if</span> <span class="ident">ttl_ir</span> <span class="op">></span> <span class="number">0</span> {
<span class="ident">avg_ir</span> <span class="op">=</span> <span class="ident">sum</span> <span class="kw">as</span> <span class="ident">f32</span> <span class="op">/</span> <span class="ident">ttl_ir</span> <span class="kw">as</span> <span class="ident">f32</span>;
<span class="ident">ir_pct</span> <span class="op">=</span> (<span class="ident">ttl_ir</span> <span class="kw">as</span> <span class="ident">f32</span> <span class="op">/</span> <span class="ident">len</span> <span class="kw">as</span> <span class="ident">f32</span>) <span class="op">*</span> <span class="number">100f32</span>;
<span class="comment">//print!( "[ttl_nz: {}, nz_pct: {:.0}%, len: {}]", ttl_nz, nz_pct, len);</span>
}
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{cdgr}; (nz:{clbl}{}{cdgr}({clbl}{:.2}%{cdgr}),\
ir:{clbl}{}{cdgr}({clbl}{:.2}%{cdgr}),hi:{},lo:{},anz:{:.2},prntd:{}){cd} "</span>,
<span class="ident">ttl_nz</span>, <span class="ident">nz_pct</span>, <span class="ident">ttl_ir</span>, <span class="ident">ir_pct</span>, <span class="ident">hi</span>, <span class="ident">lo</span>, <span class="ident">anz</span>, <span class="ident">ttl_prntd</span>, <span class="ident">cd</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DEFAULT</span>, <span class="ident">clbl</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_LBL</span>, <span class="ident">cdgr</span> <span class="op">=</span> <span class="ident">colors</span>::<span class="ident">C_DGR</span>);
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">print_simple</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">OclScl</span><span class="op">></span>(<span class="ident">slice</span>: <span class="kw-2">&</span>[<span class="ident">T</span>]) {
<span class="ident">print_slice</span>(<span class="ident">slice</span>, <span class="number">1</span>, <span class="prelude-val">None</span>, <span class="prelude-val">None</span>, <span class="bool-val">true</span>);
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">print_val_range</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">OclScl</span><span class="op">></span>(<span class="ident">slice</span>: <span class="kw-2">&</span>[<span class="ident">T</span>], <span class="ident">every</span>: <span class="ident">usize</span>, <span class="ident">val_range</span>: <span class="prelude-ty">Option</span><span class="op"><</span>(<span class="ident">T</span>, <span class="ident">T</span>)<span class="op">></span>) {
<span class="ident">print_slice</span>(<span class="ident">slice</span>, <span class="ident">every</span>, <span class="ident">val_range</span>, <span class="prelude-val">None</span>, <span class="bool-val">true</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="comment">// use std::iter;</span>
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">remove_rebuild</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">primary_vals</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> (<span class="number">0</span>..(<span class="number">1</span> <span class="op"><<</span> <span class="number">18</span>)).<span class="ident">map</span>(<span class="op">|</span><span class="ident">v</span><span class="op">|</span> <span class="ident">v</span>).<span class="ident">collect</span>();
<span class="kw">let</span> <span class="ident">orig_len</span> <span class="op">=</span> <span class="ident">primary_vals</span>.<span class="ident">len</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">bad_indices</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="op"><</span><span class="ident">usize</span><span class="op">></span>::<span class="ident">with_capacity</span>(<span class="number">1</span> <span class="op"><<</span> <span class="number">16</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">idx</span> <span class="op">=</span> <span class="number">0</span>;
<span class="comment">// Mark every whateverth value 'bad':</span>
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">val</span> <span class="kw">in</span> <span class="ident">primary_vals</span>.<span class="ident">iter</span>() {
<span class="kw">if</span> (<span class="ident">val</span> <span class="op">%</span> <span class="number">19</span> <span class="op">==</span> <span class="number">0</span>) <span class="op">||</span> (<span class="ident">val</span> <span class="op">%</span> <span class="number">31</span> <span class="op">==</span> <span class="number">0</span>) <span class="op">||</span> (<span class="ident">val</span> <span class="op">%</span> <span class="number">107</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="ident">bad_indices</span>.<span class="ident">push</span>(<span class="ident">idx</span>);
}
<span class="ident">idx</span> <span class="op">+=</span> <span class="number">1</span>;
}
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"util::tests::remove_rebuild(): bad_indices: {}"</span>, <span class="ident">bad_indices</span>.<span class="ident">len</span>());
<span class="comment">// Remove the bad values:</span>
<span class="kw">super</span>::<span class="ident">vec_remove_rebuild</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">primary_vals</span>, <span class="kw-2">&</span><span class="ident">bad_indices</span>[..], <span class="number">3</span>)
.<span class="ident">expect</span>(<span class="string">"util::tests::remove_rebuild()"</span>);
<span class="comment">// Check:</span>
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">val</span> <span class="kw">in</span> <span class="ident">primary_vals</span>.<span class="ident">iter</span>() {
<span class="kw">if</span> (<span class="ident">val</span> <span class="op">%</span> <span class="number">19</span> <span class="op">==</span> <span class="number">0</span>) <span class="op">||</span> (<span class="ident">val</span> <span class="op">%</span> <span class="number">31</span> <span class="op">==</span> <span class="number">0</span>) <span class="op">||</span> (<span class="ident">val</span> <span class="op">%</span> <span class="number">107</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"util::tests::remove_rebuild(): Value: '{}' found in list!"</span>, <span class="ident">val</span>);
}
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">orig_len</span>, <span class="ident">primary_vals</span>.<span class="ident">len</span>() <span class="op">+</span> <span class="ident">bad_indices</span>.<span class="ident">len</span>());
}
}
</pre>
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