<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/home/sangenya/.cargo/registry/src/github.com-1ecc6299db9ec823/ndarray-0.10.14/src/dimension/remove_axis.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>remove_axis.rs - source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled ><script id="default-settings"></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../../favicon.svg">
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</pre><pre class="rust">
<span class="comment">// Copyright 2014-2016 bluss and ndarray developers.</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="kw">use</span> {<span class="ident">Ix</span>, <span class="ident">Ix0</span>, <span class="ident">Ix1</span>, <span class="ident">Dimension</span>, <span class="ident">Dim</span>, <span class="ident">Axis</span>};
<span class="doccomment">/// Array shape with a next smaller dimension.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// `RemoveAxis` defines a larger-than relation for array shapes:</span>
<span class="doccomment">/// removing one axis from *Self* gives smaller dimension *Smaller*.</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">RemoveAxis</span> : <span class="ident">Dimension</span> {
<span class="kw">fn</span> <span class="ident">remove_axis</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">axis</span>: <span class="ident">Axis</span>) <span class="op">-</span><span class="op">></span> <span class="self">Self</span><span class="ident">::Smaller</span>;
}
<span class="kw">impl</span> <span class="ident">RemoveAxis</span> <span class="kw">for</span> <span class="ident">Dim</span><span class="op"><</span>[<span class="ident">Ix</span>; <span class="number">1</span>]<span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">remove_axis</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="kw">_</span>: <span class="ident">Axis</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Ix0</span> { <span class="ident">Ix0</span>() }
}
<span class="kw">impl</span> <span class="ident">RemoveAxis</span> <span class="kw">for</span> <span class="ident">Dim</span><span class="op"><</span>[<span class="ident">Ix</span>; <span class="number">2</span>]<span class="op">></span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">remove_axis</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">axis</span>: <span class="ident">Axis</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Ix1</span> {
<span class="kw">let</span> <span class="ident">axis</span> <span class="op">=</span> <span class="ident">axis</span>.<span class="ident">index</span>();
<span class="macro">debug_assert!</span>(<span class="ident">axis</span> <span class="op"><</span> <span class="self">self</span>.<span class="ident">ndim</span>());
<span class="kw">if</span> <span class="ident">axis</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span> { <span class="ident">Ix1</span>(<span class="macro">get!</span>(<span class="self">self</span>, <span class="number">1</span>)) } <span class="kw">else</span> { <span class="ident">Ix1</span>(<span class="macro">get!</span>(<span class="self">self</span>, <span class="number">0</span>)) }
}
}
<span class="macro">macro_rules!</span> <span class="ident">impl_remove_axis_array</span>(
($(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">n</span>:<span class="ident">expr</span>),<span class="kw-2">*</span>) <span class="op">=</span><span class="op">></span> (
$(
<span class="kw">impl</span> <span class="ident">RemoveAxis</span> <span class="kw">for</span> <span class="ident">Dim</span><span class="op"><</span>[<span class="ident">Ix</span>; <span class="macro-nonterminal">$</span><span class="macro-nonterminal">n</span>]<span class="op">></span>
{
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">remove_axis</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">axis</span>: <span class="ident">Axis</span>) <span class="op">-</span><span class="op">></span> <span class="self">Self</span><span class="ident">::Smaller</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">tup</span> <span class="op">=</span> <span class="ident">Dim</span>([<span class="number">0</span>; <span class="macro-nonterminal">$</span><span class="macro-nonterminal">n</span> <span class="op">-</span> <span class="number">1</span>]);
{
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">it</span> <span class="op">=</span> <span class="ident">tup</span>.<span class="ident">slice_mut</span>().<span class="ident">iter_mut</span>();
<span class="kw">for</span> (<span class="ident">i</span>, <span class="kw-2">&</span><span class="ident">d</span>) <span class="kw">in</span> <span class="self">self</span>.<span class="ident">slice</span>().<span class="ident">iter</span>().<span class="ident">enumerate</span>() {
<span class="kw">if</span> <span class="ident">i</span> <span class="op">=</span><span class="op">=</span> <span class="ident">axis</span>.<span class="ident">index</span>() {
<span class="kw">continue</span>;
}
<span class="kw">for</span> <span class="ident">rr</span> <span class="kw">in</span> <span class="ident">it</span>.<span class="ident">by_ref</span>() {
<span class="kw-2">*</span><span class="ident">rr</span> <span class="op">=</span> <span class="ident">d</span>;
<span class="kw">break</span>
}
}
}
<span class="ident">tup</span>
}
}
)<span class="op">*</span>
);
);
<span class="macro">impl_remove_axis_array!</span>(<span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>);
</pre></div>
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