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<p class='location'>Struct ImageSurfaceData</p><div class="block items"><ul><li><a href="#deref-methods">Methods from Deref&lt;Target=[u8]&gt;</a></li><li><a href="#implementations">Trait Implementations</a></li></ul></div><p class='location'><a href='index.html'>cairo</a></p><script>window.sidebarCurrent = {name: 'ImageSurfaceData', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>cairo</a>::<wbr><a class="struct" href=''>ImageSurfaceData</a></span><span class='out-of-band'><span id='render-detail'>
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<pre class='rust struct'>pub struct ImageSurfaceData&lt;'a&gt; { /* fields omitted */ }</pre><h2 id='deref-methods'>Methods from <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a>&lt;Target = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;</h2><div class='impl-items'><h4 id='method.len' class="method"><span id='len.v' class='invisible'><code>fn <a href='#method.len' class='fnname'>len</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns the number of elements in the slice.</p>
<h1 id='example' class='section-header'><a href='#example'>Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">a</span>.<span class="ident">len</span>(), <span class="number">3</span>);</pre>
</div><h4 id='method.is_empty' class="method"><span id='is_empty.v' class='invisible'><code>fn <a href='#method.is_empty' class='fnname'>is_empty</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the slice has a length of 0.</p>
<h1 id='example-1' class='section-header'><a href='#example-1'>Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>];
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">a</span>.<span class="ident">is_empty</span>());</pre>
</div><h4 id='method.first' class="method"><span id='first.v' class='invisible'><code>fn <a href='#method.first' class='fnname'>first</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns the first element of the slice, or <code>None</code> if it is empty.</p>
<h1 id='examples' class='section-header'><a href='#examples'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="number">10</span>), <span class="ident">v</span>.<span class="ident">first</span>());
<span class="kw">let</span> <span class="ident">w</span>: <span class="kw-2">&amp;</span>[<span class="ident">i32</span>] <span class="op">=</span> <span class="kw-2">&amp;</span>[];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">None</span>, <span class="ident">w</span>.<span class="ident">first</span>());</pre>
</div><h4 id='method.first_mut' class="method"><span id='first_mut.v' class='invisible'><code>fn <a href='#method.first_mut' class='fnname'>first_mut</a>(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;mut T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns a mutable pointer to the first element of the slice, or <code>None</code> if it is empty.</p>
<h1 id='examples-1' class='section-header'><a href='#examples-1'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>];
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">first</span>) <span class="op">=</span> <span class="ident">x</span>.<span class="ident">first_mut</span>() {
<span class="kw-2">*</span><span class="ident">first</span> <span class="op">=</span> <span class="number">5</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">1</span>, <span class="number">2</span>]);</pre>
</div><h4 id='method.split_first' class="method"><span id='split_first.v' class='invisible'><code>fn <a href='#method.split_first' class='fnname'>split_first</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>&amp;T, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>&gt;</code><div class='since' title='Stable since Rust version 1.5.0'>1.5.0</div></span></h4>
<div class='docblock'><p>Returns the first and all the rest of the elements of the slice, or <code>None</code> if it is empty.</p>
<h1 id='examples-2' class='section-header'><a href='#examples-2'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>];
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">first</span>, <span class="ident">elements</span>)) <span class="op">=</span> <span class="ident">x</span>.<span class="ident">split_first</span>() {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">first</span>, <span class="kw-2">&amp;</span><span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">elements</span>, <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">2</span>]);
}</pre>
</div><h4 id='method.split_first_mut' class="method"><span id='split_first_mut.v' class='invisible'><code>fn <a href='#method.split_first_mut' class='fnname'>split_first_mut</a>(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>&amp;mut T, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;mut [T]</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>&gt;</code><div class='since' title='Stable since Rust version 1.5.0'>1.5.0</div></span></h4>
<div class='docblock'><p>Returns the first and all the rest of the elements of the slice, or <code>None</code> if it is empty.</p>
<h1 id='examples-3' class='section-header'><a href='#examples-3'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>];
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">first</span>, <span class="ident">elements</span>)) <span class="op">=</span> <span class="ident">x</span>.<span class="ident">split_first_mut</span>() {
<span class="kw-2">*</span><span class="ident">first</span> <span class="op">=</span> <span class="number">3</span>;
<span class="ident">elements</span>[<span class="number">0</span>] <span class="op">=</span> <span class="number">4</span>;
<span class="ident">elements</span>[<span class="number">1</span>] <span class="op">=</span> <span class="number">5</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>]);</pre>
</div><h4 id='method.split_last' class="method"><span id='split_last.v' class='invisible'><code>fn <a href='#method.split_last' class='fnname'>split_last</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>&amp;T, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>&gt;</code><div class='since' title='Stable since Rust version 1.5.0'>1.5.0</div></span></h4>
<div class='docblock'><p>Returns the last and all the rest of the elements of the slice, or <code>None</code> if it is empty.</p>
<h1 id='examples-4' class='section-header'><a href='#examples-4'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>];
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">last</span>, <span class="ident">elements</span>)) <span class="op">=</span> <span class="ident">x</span>.<span class="ident">split_last</span>() {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">last</span>, <span class="kw-2">&amp;</span><span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">elements</span>, <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">1</span>]);
}</pre>
</div><h4 id='method.split_last_mut' class="method"><span id='split_last_mut.v' class='invisible'><code>fn <a href='#method.split_last_mut' class='fnname'>split_last_mut</a>(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>&amp;mut T, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;mut [T]</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>&gt;</code><div class='since' title='Stable since Rust version 1.5.0'>1.5.0</div></span></h4>
<div class='docblock'><p>Returns the last and all the rest of the elements of the slice, or <code>None</code> if it is empty.</p>
<h1 id='examples-5' class='section-header'><a href='#examples-5'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>];
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">last</span>, <span class="ident">elements</span>)) <span class="op">=</span> <span class="ident">x</span>.<span class="ident">split_last_mut</span>() {
<span class="kw-2">*</span><span class="ident">last</span> <span class="op">=</span> <span class="number">3</span>;
<span class="ident">elements</span>[<span class="number">0</span>] <span class="op">=</span> <span class="number">4</span>;
<span class="ident">elements</span>[<span class="number">1</span>] <span class="op">=</span> <span class="number">5</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">4</span>, <span class="number">5</span>, <span class="number">3</span>]);</pre>
</div><h4 id='method.last' class="method"><span id='last.v' class='invisible'><code>fn <a href='#method.last' class='fnname'>last</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns the last element of the slice, or <code>None</code> if it is empty.</p>
<h1 id='examples-6' class='section-header'><a href='#examples-6'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="number">30</span>), <span class="ident">v</span>.<span class="ident">last</span>());
<span class="kw">let</span> <span class="ident">w</span>: <span class="kw-2">&amp;</span>[<span class="ident">i32</span>] <span class="op">=</span> <span class="kw-2">&amp;</span>[];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">None</span>, <span class="ident">w</span>.<span class="ident">last</span>());</pre>
</div><h4 id='method.last_mut' class="method"><span id='last_mut.v' class='invisible'><code>fn <a href='#method.last_mut' class='fnname'>last_mut</a>(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;mut T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns a mutable pointer to the last item in the slice.</p>
<h1 id='examples-7' class='section-header'><a href='#examples-7'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>];
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">last</span>) <span class="op">=</span> <span class="ident">x</span>.<span class="ident">last_mut</span>() {
<span class="kw-2">*</span><span class="ident">last</span> <span class="op">=</span> <span class="number">10</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">1</span>, <span class="number">10</span>]);</pre>
</div><h4 id='method.get' class="method"><span id='get.v' class='invisible'><code>fn <a href='#method.get' class='fnname'>get</a>&lt;I&gt;(&amp;self, index: I) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;&lt;I as <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html#associatedtype.Output" title="type core::slice::SliceIndex::Output">Output</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns a reference to an element or subslice depending on the type of
index.</p>
<ul>
<li>If given a position, returns a reference to the element at that
position or <code>None</code> if out of bounds.</li>
<li>If given a range, returns the subslice corresponding to that range,
or <code>None</code> if out of bounds.</li>
</ul>
<h1 id='examples-8' class='section-header'><a href='#examples-8'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="number">40</span>), <span class="ident">v</span>.<span class="ident">get</span>(<span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>[<span class="number">10</span>, <span class="number">40</span>][..]), <span class="ident">v</span>.<span class="ident">get</span>(<span class="number">0</span>..<span class="number">2</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">None</span>, <span class="ident">v</span>.<span class="ident">get</span>(<span class="number">3</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="prelude-val">None</span>, <span class="ident">v</span>.<span class="ident">get</span>(<span class="number">0</span>..<span class="number">4</span>));</pre>
</div><h4 id='method.get_mut' class="method"><span id='get_mut.v' class='invisible'><code>fn <a href='#method.get_mut' class='fnname'>get_mut</a>&lt;I&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;mut self, <br>&nbsp;&nbsp;&nbsp;&nbsp;index: I<br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;mut &lt;I as <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html#associatedtype.Output" title="type core::slice::SliceIndex::Output">Output</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns a mutable reference to an element or subslice depending on the
type of index (see <a href="#method.get"><code>get</code></a>) or <code>None</code> if the index is out of bounds.</p>
<h1 id='examples-9' class='section-header'><a href='#examples-9'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>];
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">elem</span>) <span class="op">=</span> <span class="ident">x</span>.<span class="ident">get_mut</span>(<span class="number">1</span>) {
<span class="kw-2">*</span><span class="ident">elem</span> <span class="op">=</span> <span class="number">42</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">42</span>, <span class="number">2</span>]);</pre>
</div><h4 id='method.get_unchecked' class="method"><span id='get_unchecked.v' class='invisible'><code>unsafe fn <a href='#method.get_unchecked' class='fnname'>get_unchecked</a>&lt;I&gt;(&amp;self, index: I) -&gt; &amp;&lt;I as <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html#associatedtype.Output" title="type core::slice::SliceIndex::Output">Output</a> <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns a reference to an element or subslice, without doing bounds
checking.</p>
<p>This is generally not recommended, use with caution! For a safe
alternative see <a href="#method.get"><code>get</code></a>.</p>
<h1 id='examples-10' class='section-header'><a href='#examples-10'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>];
<span class="kw">unsafe</span> {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>.<span class="ident">get_unchecked</span>(<span class="number">1</span>), <span class="kw-2">&amp;</span><span class="number">2</span>);
}</pre>
</div><h4 id='method.get_unchecked_mut' class="method"><span id='get_unchecked_mut.v' class='invisible'><code>unsafe fn <a href='#method.get_unchecked_mut' class='fnname'>get_unchecked_mut</a>&lt;I&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;mut self, <br>&nbsp;&nbsp;&nbsp;&nbsp;index: I<br>) -&gt; &amp;mut &lt;I as <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html#associatedtype.Output" title="type core::slice::SliceIndex::Output">Output</a> <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/slice/trait.SliceIndex.html" title="trait core::slice::SliceIndex">SliceIndex</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns a mutable reference to an element or subslice, without doing
bounds checking.</p>
<p>This is generally not recommended, use with caution! For a safe
alternative see <a href="#method.get_mut"><code>get_mut</code></a>.</p>
<h1 id='examples-11' class='section-header'><a href='#examples-11'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>];
<span class="kw">unsafe</span> {
<span class="kw">let</span> <span class="ident">elem</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">get_unchecked_mut</span>(<span class="number">1</span>);
<span class="kw-2">*</span><span class="ident">elem</span> <span class="op">=</span> <span class="number">13</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">13</span>, <span class="number">4</span>]);</pre>
</div><h4 id='method.as_ptr' class="method"><span id='as_ptr.v' class='invisible'><code>fn <a href='#method.as_ptr' class='fnname'>as_ptr</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.pointer.html">*const T</a></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns a raw pointer to the slice&#39;s buffer.</p>
<p>The caller must ensure that the slice outlives the pointer this
function returns, or else it will end up pointing to garbage.</p>
<p>Modifying the container referenced by this slice may cause its buffer
to be reallocated, which would also make any pointers to it invalid.</p>
<h1 id='examples-12' class='section-header'><a href='#examples-12'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>];
<span class="kw">let</span> <span class="ident">x_ptr</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">as_ptr</span>();
<span class="kw">unsafe</span> {
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">x</span>.<span class="ident">len</span>() {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>.<span class="ident">get_unchecked</span>(<span class="ident">i</span>), <span class="kw-2">&amp;</span><span class="kw-2">*</span><span class="ident">x_ptr</span>.<span class="ident">offset</span>(<span class="ident">i</span> <span class="kw">as</span> <span class="ident">isize</span>));
}
}</pre>
</div><h4 id='method.as_mut_ptr' class="method"><span id='as_mut_ptr.v' class='invisible'><code>fn <a href='#method.as_mut_ptr' class='fnname'>as_mut_ptr</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.pointer.html">*mut T</a></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an unsafe mutable pointer to the slice&#39;s buffer.</p>
<p>The caller must ensure that the slice outlives the pointer this
function returns, or else it will end up pointing to garbage.</p>
<p>Modifying the container referenced by this slice may cause its buffer
to be reallocated, which would also make any pointers to it invalid.</p>
<h1 id='examples-13' class='section-header'><a href='#examples-13'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>];
<span class="kw">let</span> <span class="ident">x_ptr</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">as_mut_ptr</span>();
<span class="kw">unsafe</span> {
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="ident">x</span>.<span class="ident">len</span>() {
<span class="kw-2">*</span><span class="ident">x_ptr</span>.<span class="ident">offset</span>(<span class="ident">i</span> <span class="kw">as</span> <span class="ident">isize</span>) <span class="op">+=</span> <span class="number">2</span>;
}
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">3</span>, <span class="number">4</span>, <span class="number">6</span>]);</pre>
</div><h4 id='method.swap' class="method"><span id='swap.v' class='invisible'><code>fn <a href='#method.swap' class='fnname'>swap</a>(&amp;mut self, a: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, b: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Swaps two elements in the slice.</p>
<h1 id='arguments' class='section-header'><a href='#arguments'>Arguments</a></h1>
<ul>
<li>a - The index of the first element</li>
<li>b - The index of the second element</li>
</ul>
<h1 id='panics' class='section-header'><a href='#panics'>Panics</a></h1>
<p>Panics if <code>a</code> or <code>b</code> are out of bounds.</p>
<h1 id='examples-14' class='section-header'><a href='#examples-14'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="string">&quot;a&quot;</span>, <span class="string">&quot;b&quot;</span>, <span class="string">&quot;c&quot;</span>, <span class="string">&quot;d&quot;</span>];
<span class="ident">v</span>.<span class="ident">swap</span>(<span class="number">1</span>, <span class="number">3</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="string">&quot;a&quot;</span>, <span class="string">&quot;d&quot;</span>, <span class="string">&quot;c&quot;</span>, <span class="string">&quot;b&quot;</span>]);</pre>
</div><h4 id='method.reverse' class="method"><span id='reverse.v' class='invisible'><code>fn <a href='#method.reverse' class='fnname'>reverse</a>(&amp;mut self)</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Reverses the order of elements in the slice, in place.</p>
<h1 id='example-2' class='section-header'><a href='#example-2'>Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>];
<span class="ident">v</span>.<span class="ident">reverse</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="number">3</span>, <span class="number">2</span>, <span class="number">1</span>]);</pre>
</div><h4 id='method.iter' class="method"><span id='iter.v' class='invisible'><code>fn <a href='#method.iter' class='fnname'>iter</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.Iter.html" title="struct core::slice::Iter">Iter</a>&lt;T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over the slice.</p>
<h1 id='examples-15' class='section-header'><a href='#examples-15'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iterator</span> <span class="op">=</span> <span class="ident">x</span>.<span class="ident">iter</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iterator</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iterator</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="number">2</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iterator</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="number">4</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iterator</span>.<span class="ident">next</span>(), <span class="prelude-val">None</span>);</pre>
</div><h4 id='method.iter_mut' class="method"><span id='iter_mut.v' class='invisible'><code>fn <a href='#method.iter_mut' class='fnname'>iter_mut</a>(&amp;mut self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.IterMut.html" title="struct core::slice::IterMut">IterMut</a>&lt;T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator that allows modifying each value.</p>
<h1 id='examples-16' class='section-header'><a href='#examples-16'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>];
<span class="kw">for</span> <span class="ident">elem</span> <span class="kw">in</span> <span class="ident">x</span>.<span class="ident">iter_mut</span>() {
<span class="kw-2">*</span><span class="ident">elem</span> <span class="op">+=</span> <span class="number">2</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">x</span>, <span class="kw-2">&amp;</span>[<span class="number">3</span>, <span class="number">4</span>, <span class="number">6</span>]);</pre>
</div><h4 id='method.windows' class="method"><span id='windows.v' class='invisible'><code>fn <a href='#method.windows' class='fnname'>windows</a>(&amp;self, size: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.Windows.html" title="struct core::slice::Windows">Windows</a>&lt;T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over all contiguous windows of length
<code>size</code>. The windows overlap. If the slice is shorter than
<code>size</code>, the iterator returns no values.</p>
<h1 id='panics-1' class='section-header'><a href='#panics-1'>Panics</a></h1>
<p>Panics if <code>size</code> is 0.</p>
<h1 id='example-3' class='section-header'><a href='#example-3'>Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">slice</span> <span class="op">=</span> [<span class="string">&#39;r&#39;</span>, <span class="string">&#39;u&#39;</span>, <span class="string">&#39;s&#39;</span>, <span class="string">&#39;t&#39;</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">slice</span>.<span class="ident">windows</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="string">&#39;r&#39;</span>, <span class="string">&#39;u&#39;</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="string">&#39;u&#39;</span>, <span class="string">&#39;s&#39;</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="string">&#39;s&#39;</span>, <span class="string">&#39;t&#39;</span>]);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());</pre>
<p>If the slice is shorter than <code>size</code>:</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">slice</span> <span class="op">=</span> [<span class="string">&#39;f&#39;</span>, <span class="string">&#39;o&#39;</span>, <span class="string">&#39;o&#39;</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">slice</span>.<span class="ident">windows</span>(<span class="number">4</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());</pre>
</div><h4 id='method.chunks' class="method"><span id='chunks.v' class='invisible'><code>fn <a href='#method.chunks' class='fnname'>chunks</a>(&amp;self, size: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.Chunks.html" title="struct core::slice::Chunks">Chunks</a>&lt;T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over <code>size</code> elements of the slice at a
time. The chunks are slices and do not overlap. If <code>size</code> does
not divide the length of the slice, then the last chunk will
not have length <code>size</code>.</p>
<h1 id='panics-2' class='section-header'><a href='#panics-2'>Panics</a></h1>
<p>Panics if <code>size</code> is 0.</p>
<h1 id='example-4' class='section-header'><a href='#example-4'>Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">slice</span> <span class="op">=</span> [<span class="string">&#39;l&#39;</span>, <span class="string">&#39;o&#39;</span>, <span class="string">&#39;r&#39;</span>, <span class="string">&#39;e&#39;</span>, <span class="string">&#39;m&#39;</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">slice</span>.<span class="ident">chunks</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="string">&#39;l&#39;</span>, <span class="string">&#39;o&#39;</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="string">&#39;r&#39;</span>, <span class="string">&#39;e&#39;</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="string">&#39;m&#39;</span>]);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());</pre>
</div><h4 id='method.chunks_mut' class="method"><span id='chunks_mut.v' class='invisible'><code>fn <a href='#method.chunks_mut' class='fnname'>chunks_mut</a>(&amp;mut self, chunk_size: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.ChunksMut.html" title="struct core::slice::ChunksMut">ChunksMut</a>&lt;T&gt;</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over <code>chunk_size</code> elements of the slice at a time.
The chunks are mutable slices, and do not overlap. If <code>chunk_size</code> does
not divide the length of the slice, then the last chunk will not
have length <code>chunk_size</code>.</p>
<h1 id='panics-3' class='section-header'><a href='#panics-3'>Panics</a></h1>
<p>Panics if <code>chunk_size</code> is 0.</p>
<h1 id='examples-17' class='section-header'><a href='#examples-17'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</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="kw">let</span> <span class="kw-2">mut</span> <span class="ident">count</span> <span class="op">=</span> <span class="number">1</span>;
<span class="kw">for</span> <span class="ident">chunk</span> <span class="kw">in</span> <span class="ident">v</span>.<span class="ident">chunks_mut</span>(<span class="number">2</span>) {
<span class="kw">for</span> <span class="ident">elem</span> <span class="kw">in</span> <span class="ident">chunk</span>.<span class="ident">iter_mut</span>() {
<span class="kw-2">*</span><span class="ident">elem</span> <span class="op">+=</span> <span class="ident">count</span>;
}
<span class="ident">count</span> <span class="op">+=</span> <span class="number">1</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>, <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">3</span>]);</pre>
</div><h4 id='method.split_at' class="method"><span id='split_at.v' class='invisible'><code>fn <a href='#method.split_at' class='fnname'>split_at</a>(&amp;self, mid: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Divides one slice into two at an index.</p>
<p>The first will contain all indices from <code>[0, mid)</code> (excluding
the index <code>mid</code> itself) and the second will contain all
indices from <code>[mid, len)</code> (excluding the index <code>len</code> itself).</p>
<h1 id='panics-4' class='section-header'><a href='#panics-4'>Panics</a></h1>
<p>Panics if <code>mid &gt; len</code>.</p>
<h1 id='examples-18' class='section-header'><a href='#examples-18'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">20</span>, <span class="number">50</span>];
<span class="kw">let</span> (<span class="ident">v1</span>, <span class="ident">v2</span>) <span class="op">=</span> <span class="ident">v</span>.<span class="ident">split_at</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>([<span class="number">10</span>, <span class="number">40</span>], <span class="ident">v1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>([<span class="number">30</span>, <span class="number">20</span>, <span class="number">50</span>], <span class="ident">v2</span>);</pre>
</div><h4 id='method.split_at_mut' class="method"><span id='split_at_mut.v' class='invisible'><code>fn <a href='#method.split_at_mut' class='fnname'>split_at_mut</a>(&amp;mut self, mid: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;mut [T]</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;mut [T]</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Divides one <code>&amp;mut</code> into two at an index.</p>
<p>The first will contain all indices from <code>[0, mid)</code> (excluding
the index <code>mid</code> itself) and the second will contain all
indices from <code>[mid, len)</code> (excluding the index <code>len</code> itself).</p>
<h1 id='panics-5' class='section-header'><a href='#panics-5'>Panics</a></h1>
<p>Panics if <code>mid &gt; len</code>.</p>
<h1 id='examples-19' class='section-header'><a href='#examples-19'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>];
<span class="comment">// scoped to restrict the lifetime of the borrows</span>
{
<span class="kw">let</span> (<span class="ident">left</span>, <span class="ident">right</span>) <span class="op">=</span> <span class="ident">v</span>.<span class="ident">split_at_mut</span>(<span class="number">0</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">left</span> <span class="op">==</span> []);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">right</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>]);
}
{
<span class="kw">let</span> (<span class="ident">left</span>, <span class="ident">right</span>) <span class="op">=</span> <span class="ident">v</span>.<span class="ident">split_at_mut</span>(<span class="number">2</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">left</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>]);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">right</span> <span class="op">==</span> [<span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>]);
}
{
<span class="kw">let</span> (<span class="ident">left</span>, <span class="ident">right</span>) <span class="op">=</span> <span class="ident">v</span>.<span class="ident">split_at_mut</span>(<span class="number">6</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">left</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>]);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">right</span> <span class="op">==</span> []);
}</pre>
</div><h4 id='method.split' class="method"><span id='split.v' class='invisible'><code>fn <a href='#method.split' class='fnname'>split</a>&lt;F&gt;(&amp;self, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.Split.html" title="struct core::slice::Split">Split</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over subslices separated by elements that match
<code>pred</code>. The matched element is not contained in the subslices.</p>
<h1 id='examples-20' class='section-header'><a href='#examples-20'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">slice</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">33</span>, <span class="number">20</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">slice</span>.<span class="ident">split</span>(<span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">10</span>, <span class="number">40</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">20</span>]);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());</pre>
<p>If the first element is matched, an empty slice will be the first item
returned by the iterator. Similarly, if the last element in the slice
is matched, an empty slice will be the last item returned by the
iterator:</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">slice</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">33</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">slice</span>.<span class="ident">split</span>(<span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">10</span>, <span class="number">40</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[]);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());</pre>
<p>If two matched elements are directly adjacent, an empty slice will be
present between them:</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">slice</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">6</span>, <span class="number">33</span>, <span class="number">20</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">slice</span>.<span class="ident">split</span>(<span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">10</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">20</span>]);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());</pre>
</div><h4 id='method.split_mut' class="method"><span id='split_mut.v' class='invisible'><code>fn <a href='#method.split_mut' class='fnname'>split_mut</a>&lt;F&gt;(&amp;mut self, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.SplitMut.html" title="struct core::slice::SplitMut">SplitMut</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over mutable subslices separated by elements that
match <code>pred</code>. The matched element is not contained in the subslices.</p>
<h1 id='examples-21' class='section-header'><a href='#examples-21'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">20</span>, <span class="number">60</span>, <span class="number">50</span>];
<span class="kw">for</span> <span class="ident">group</span> <span class="kw">in</span> <span class="ident">v</span>.<span class="ident">split_mut</span>(<span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="ident">group</span>[<span class="number">0</span>] <span class="op">=</span> <span class="number">1</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>, [<span class="number">1</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">1</span>, <span class="number">60</span>, <span class="number">1</span>]);</pre>
</div><h4 id='method.rsplit' class="method"><span id='rsplit.v' class='invisible'><code>fn <a href='#method.rsplit' class='fnname'>rsplit</a>&lt;F&gt;(&amp;self, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.RSplit.html" title="struct core::slice::RSplit">RSplit</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code></span></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>slice_rsplit</code>)</div></div><div class='docblock'><p>Returns an iterator over subslices separated by elements that match
<code>pred</code>, starting at the end of the slice and working backwards.
The matched element is not contained in the subslices.</p>
<h1 id='examples-22' class='section-header'><a href='#examples-22'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">slice_rsplit</span>)]</span>
<span class="kw">let</span> <span class="ident">slice</span> <span class="op">=</span> [<span class="number">11</span>, <span class="number">22</span>, <span class="number">33</span>, <span class="number">0</span>, <span class="number">44</span>, <span class="number">55</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">slice</span>.<span class="ident">rsplit</span>(<span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">num</span> <span class="op">==</span> <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">44</span>, <span class="number">55</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">11</span>, <span class="number">22</span>, <span class="number">33</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">None</span>);</pre>
<p>As with <code>split()</code>, if the first or last element is matched, an empty
slice will be the first (or last) item returned by the iterator.</p>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">slice_rsplit</span>)]</span>
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">it</span> <span class="op">=</span> <span class="ident">v</span>.<span class="ident">rsplit</span>(<span class="op">|</span><span class="ident">n</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">n</span> <span class="op">%</span> <span class="number">2</span> <span class="op">==</span> <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">it</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">it</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">3</span>, <span class="number">5</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">it</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">1</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">it</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&amp;</span>[]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">it</span>.<span class="ident">next</span>(), <span class="prelude-val">None</span>);</pre>
</div><h4 id='method.rsplit_mut' class="method"><span id='rsplit_mut.v' class='invisible'><code>fn <a href='#method.rsplit_mut' class='fnname'>rsplit_mut</a>&lt;F&gt;(&amp;mut self, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.RSplitMut.html" title="struct core::slice::RSplitMut">RSplitMut</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code></span></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>slice_rsplit</code>)</div></div><div class='docblock'><p>Returns an iterator over mutable subslices separated by elements that
match <code>pred</code>, starting at the end of the slice and working
backwards. The matched element is not contained in the subslices.</p>
<h1 id='examples-23' class='section-header'><a href='#examples-23'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">slice_rsplit</span>)]</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">100</span>, <span class="number">400</span>, <span class="number">300</span>, <span class="number">200</span>, <span class="number">600</span>, <span class="number">500</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">count</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">for</span> <span class="ident">group</span> <span class="kw">in</span> <span class="ident">v</span>.<span class="ident">rsplit_mut</span>(<span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="ident">count</span> <span class="op">+=</span> <span class="number">1</span>;
<span class="ident">group</span>[<span class="number">0</span>] <span class="op">=</span> <span class="ident">count</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>, [<span class="number">3</span>, <span class="number">400</span>, <span class="number">300</span>, <span class="number">2</span>, <span class="number">600</span>, <span class="number">1</span>]);</pre>
</div><h4 id='method.splitn' class="method"><span id='splitn.v' class='invisible'><code>fn <a href='#method.splitn' class='fnname'>splitn</a>&lt;F&gt;(&amp;self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.SplitN.html" title="struct core::slice::SplitN">SplitN</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over subslices separated by elements that match
<code>pred</code>, limited to returning at most <code>n</code> items. The matched element is
not contained in the subslices.</p>
<p>The last element returned, if any, will contain the remainder of the
slice.</p>
<h1 id='examples-24' class='section-header'><a href='#examples-24'>Examples</a></h1>
<p>Print the slice split once by numbers divisible by 3 (i.e. <code>[10, 40]</code>,
<code>[20, 60, 50]</code>):</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">20</span>, <span class="number">60</span>, <span class="number">50</span>];
<span class="kw">for</span> <span class="ident">group</span> <span class="kw">in</span> <span class="ident">v</span>.<span class="ident">splitn</span>(<span class="number">2</span>, <span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;{:?}&quot;</span>, <span class="ident">group</span>);
}</pre>
</div><h4 id='method.splitn_mut' class="method"><span id='splitn_mut.v' class='invisible'><code>fn <a href='#method.splitn_mut' class='fnname'>splitn_mut</a>&lt;F&gt;(&amp;mut self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.SplitNMut.html" title="struct core::slice::SplitNMut">SplitNMut</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over subslices separated by elements that match
<code>pred</code>, limited to returning at most <code>n</code> items. The matched element is
not contained in the subslices.</p>
<p>The last element returned, if any, will contain the remainder of the
slice.</p>
<h1 id='examples-25' class='section-header'><a href='#examples-25'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">20</span>, <span class="number">60</span>, <span class="number">50</span>];
<span class="kw">for</span> <span class="ident">group</span> <span class="kw">in</span> <span class="ident">v</span>.<span class="ident">splitn_mut</span>(<span class="number">2</span>, <span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="ident">group</span>[<span class="number">0</span>] <span class="op">=</span> <span class="number">1</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>, [<span class="number">1</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">1</span>, <span class="number">60</span>, <span class="number">50</span>]);</pre>
</div><h4 id='method.rsplitn' class="method"><span id='rsplitn.v' class='invisible'><code>fn <a href='#method.rsplitn' class='fnname'>rsplitn</a>&lt;F&gt;(&amp;self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.RSplitN.html" title="struct core::slice::RSplitN">RSplitN</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over subslices separated by elements that match
<code>pred</code> limited to returning at most <code>n</code> items. This starts at the end of
the slice and works backwards. The matched element is not contained in
the subslices.</p>
<p>The last element returned, if any, will contain the remainder of the
slice.</p>
<h1 id='examples-26' class='section-header'><a href='#examples-26'>Examples</a></h1>
<p>Print the slice split once, starting from the end, by numbers divisible
by 3 (i.e. <code>[50]</code>, <code>[10, 40, 30, 20]</code>):</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">20</span>, <span class="number">60</span>, <span class="number">50</span>];
<span class="kw">for</span> <span class="ident">group</span> <span class="kw">in</span> <span class="ident">v</span>.<span class="ident">rsplitn</span>(<span class="number">2</span>, <span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;{:?}&quot;</span>, <span class="ident">group</span>);
}</pre>
</div><h4 id='method.rsplitn_mut' class="method"><span id='rsplitn_mut.v' class='invisible'><code>fn <a href='#method.rsplitn_mut' class='fnname'>rsplitn_mut</a>&lt;F&gt;(&amp;mut self, n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, pred: F) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/slice/struct.RSplitNMut.html" title="struct core::slice::RSplitNMut">RSplitNMut</a>&lt;T, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns an iterator over subslices separated by elements that match
<code>pred</code> limited to returning at most <code>n</code> items. This starts at the end of
the slice and works backwards. The matched element is not contained in
the subslices.</p>
<p>The last element returned, if any, will contain the remainder of the
slice.</p>
<h1 id='examples-27' class='section-header'><a href='#examples-27'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">s</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">20</span>, <span class="number">60</span>, <span class="number">50</span>];
<span class="kw">for</span> <span class="ident">group</span> <span class="kw">in</span> <span class="ident">s</span>.<span class="ident">rsplitn_mut</span>(<span class="number">2</span>, <span class="op">|</span><span class="ident">num</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">num</span> <span class="op">%</span> <span class="number">3</span> <span class="op">==</span> <span class="number">0</span>) {
<span class="ident">group</span>[<span class="number">0</span>] <span class="op">=</span> <span class="number">1</span>;
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>, [<span class="number">1</span>, <span class="number">40</span>, <span class="number">30</span>, <span class="number">20</span>, <span class="number">60</span>, <span class="number">1</span>]);</pre>
</div><h4 id='method.contains' class="method"><span id='contains.v' class='invisible'><code>fn <a href='#method.contains' class='fnname'>contains</a>(&amp;self, x: &amp;T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;T&gt;,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the slice contains an element with the given value.</p>
<h1 id='examples-28' class='section-header'><a href='#examples-28'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">contains</span>(<span class="kw-2">&amp;</span><span class="number">30</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">v</span>.<span class="ident">contains</span>(<span class="kw-2">&amp;</span><span class="number">50</span>));</pre>
</div><h4 id='method.starts_with' class="method"><span id='starts_with.v' class='invisible'><code>fn <a href='#method.starts_with' class='fnname'>starts_with</a>(&amp;self, needle: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;T&gt;,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns <code>true</code> if <code>needle</code> is a prefix of the slice.</p>
<h1 id='examples-29' class='section-header'><a href='#examples-29'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">starts_with</span>(<span class="kw-2">&amp;</span>[<span class="number">10</span>]));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">starts_with</span>(<span class="kw-2">&amp;</span>[<span class="number">10</span>, <span class="number">40</span>]));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">v</span>.<span class="ident">starts_with</span>(<span class="kw-2">&amp;</span>[<span class="number">50</span>]));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">v</span>.<span class="ident">starts_with</span>(<span class="kw-2">&amp;</span>[<span class="number">10</span>, <span class="number">50</span>]));</pre>
<p>Always returns <code>true</code> if <code>needle</code> is an empty slice:</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">starts_with</span>(<span class="kw-2">&amp;</span>[]));
<span class="kw">let</span> <span class="ident">v</span>: <span class="kw-2">&amp;</span>[<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&amp;</span>[];
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">starts_with</span>(<span class="kw-2">&amp;</span>[]));</pre>
</div><h4 id='method.ends_with' class="method"><span id='ends_with.v' class='invisible'><code>fn <a href='#method.ends_with' class='fnname'>ends_with</a>(&amp;self, needle: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;T&gt;,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Returns <code>true</code> if <code>needle</code> is a suffix of the slice.</p>
<h1 id='examples-30' class='section-header'><a href='#examples-30'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">ends_with</span>(<span class="kw-2">&amp;</span>[<span class="number">30</span>]));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">ends_with</span>(<span class="kw-2">&amp;</span>[<span class="number">40</span>, <span class="number">30</span>]));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">v</span>.<span class="ident">ends_with</span>(<span class="kw-2">&amp;</span>[<span class="number">50</span>]));
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">v</span>.<span class="ident">ends_with</span>(<span class="kw-2">&amp;</span>[<span class="number">50</span>, <span class="number">30</span>]));</pre>
<p>Always returns <code>true</code> if <code>needle</code> is an empty slice:</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="kw-2">&amp;</span>[<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">ends_with</span>(<span class="kw-2">&amp;</span>[]));
<span class="kw">let</span> <span class="ident">v</span>: <span class="kw-2">&amp;</span>[<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&amp;</span>[];
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">ends_with</span>(<span class="kw-2">&amp;</span>[]));</pre>
</div><h4 id='method.binary_search' class="method"><span id='binary_search.v' class='invisible'><code>fn <a href='#method.binary_search' class='fnname'>binary_search</a>(&amp;self, x: &amp;T) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Binary searches this sorted slice for a given element.</p>
<p>If the value is found then <code>Ok</code> is returned, containing the
index of the matching element; if the value is not found then
<code>Err</code> is returned, containing the index where a matching
element could be inserted while maintaining sorted order.</p>
<h1 id='example-5' class='section-header'><a href='#example-5'>Example</a></h1>
<p>Looks up a series of four elements. The first is found, with a
uniquely determined position; the second and third are not
found; the fourth could match any position in <code>[1, 4]</code>.</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> [<span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>, <span class="number">13</span>, <span class="number">21</span>, <span class="number">34</span>, <span class="number">55</span>];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search</span>(<span class="kw-2">&amp;</span><span class="number">13</span>), <span class="prelude-val">Ok</span>(<span class="number">9</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search</span>(<span class="kw-2">&amp;</span><span class="number">4</span>), <span class="prelude-val">Err</span>(<span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search</span>(<span class="kw-2">&amp;</span><span class="number">100</span>), <span class="prelude-val">Err</span>(<span class="number">13</span>));
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">binary_search</span>(<span class="kw-2">&amp;</span><span class="number">1</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="kw">match</span> <span class="ident">r</span> { <span class="prelude-val">Ok</span>(<span class="number">1</span>...<span class="number">4</span>) <span class="op">=&gt;</span> <span class="bool-val">true</span>, _ <span class="op">=&gt;</span> <span class="bool-val">false</span>, });</pre>
</div><h4 id='method.binary_search_by' class="method"><span id='binary_search_by.v' class='invisible'><code>fn <a href='#method.binary_search_by' class='fnname'>binary_search_by</a>&lt;'a, F&gt;(&amp;'a self, f: F) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;'a T) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Binary searches this sorted slice with a comparator function.</p>
<p>The comparator function should implement an order consistent
with the sort order of the underlying slice, returning an
order code that indicates whether its argument is <code>Less</code>,
<code>Equal</code> or <code>Greater</code> the desired target.</p>
<p>If a matching value is found then returns <code>Ok</code>, containing
the index for the matched element; if no match is found then
<code>Err</code> is returned, containing the index where a matching
element could be inserted while maintaining sorted order.</p>
<h1 id='example-6' class='section-header'><a href='#example-6'>Example</a></h1>
<p>Looks up a series of four elements. The first is found, with a
uniquely determined position; the second and third are not
found; the fourth could match any position in <code>[1, 4]</code>.</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> [<span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">5</span>, <span class="number">8</span>, <span class="number">13</span>, <span class="number">21</span>, <span class="number">34</span>, <span class="number">55</span>];
<span class="kw">let</span> <span class="ident">seek</span> <span class="op">=</span> <span class="number">13</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search_by</span>(<span class="op">|</span><span class="ident">probe</span><span class="op">|</span> <span class="ident">probe</span>.<span class="ident">cmp</span>(<span class="kw-2">&amp;</span><span class="ident">seek</span>)), <span class="prelude-val">Ok</span>(<span class="number">9</span>));
<span class="kw">let</span> <span class="ident">seek</span> <span class="op">=</span> <span class="number">4</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search_by</span>(<span class="op">|</span><span class="ident">probe</span><span class="op">|</span> <span class="ident">probe</span>.<span class="ident">cmp</span>(<span class="kw-2">&amp;</span><span class="ident">seek</span>)), <span class="prelude-val">Err</span>(<span class="number">7</span>));
<span class="kw">let</span> <span class="ident">seek</span> <span class="op">=</span> <span class="number">100</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search_by</span>(<span class="op">|</span><span class="ident">probe</span><span class="op">|</span> <span class="ident">probe</span>.<span class="ident">cmp</span>(<span class="kw-2">&amp;</span><span class="ident">seek</span>)), <span class="prelude-val">Err</span>(<span class="number">13</span>));
<span class="kw">let</span> <span class="ident">seek</span> <span class="op">=</span> <span class="number">1</span>;
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">binary_search_by</span>(<span class="op">|</span><span class="ident">probe</span><span class="op">|</span> <span class="ident">probe</span>.<span class="ident">cmp</span>(<span class="kw-2">&amp;</span><span class="ident">seek</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="kw">match</span> <span class="ident">r</span> { <span class="prelude-val">Ok</span>(<span class="number">1</span>...<span class="number">4</span>) <span class="op">=&gt;</span> <span class="bool-val">true</span>, _ <span class="op">=&gt;</span> <span class="bool-val">false</span>, });</pre>
</div><h4 id='method.binary_search_by_key' class="method"><span id='binary_search_by_key.v' class='invisible'><code>fn <a href='#method.binary_search_by_key' class='fnname'>binary_search_by_key</a>&lt;'a, B, F&gt;(&amp;'a self, b: &amp;B, f: F) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;'a T) -&gt; B,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.10.0'>1.10.0</div></span></h4>
<div class='docblock'><p>Binary searches this sorted slice with a key extraction function.</p>
<p>Assumes that the slice is sorted by the key, for instance with
<a href="#method.sort_by_key"><code>sort_by_key</code></a> using the same key extraction function.</p>
<p>If a matching value is found then returns <code>Ok</code>, containing the
index for the matched element; if no match is found then <code>Err</code>
is returned, containing the index where a matching element could
be inserted while maintaining sorted order.</p>
<h1 id='examples-31' class='section-header'><a href='#examples-31'>Examples</a></h1>
<p>Looks up a series of four elements in a slice of pairs sorted by
their second elements. The first is found, with a uniquely
determined position; the second and third are not found; the
fourth could match any position in <code>[1, 4]</code>.</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> [(<span class="number">0</span>, <span class="number">0</span>), (<span class="number">2</span>, <span class="number">1</span>), (<span class="number">4</span>, <span class="number">1</span>), (<span class="number">5</span>, <span class="number">1</span>), (<span class="number">3</span>, <span class="number">1</span>),
(<span class="number">1</span>, <span class="number">2</span>), (<span class="number">2</span>, <span class="number">3</span>), (<span class="number">4</span>, <span class="number">5</span>), (<span class="number">5</span>, <span class="number">8</span>), (<span class="number">3</span>, <span class="number">13</span>),
(<span class="number">1</span>, <span class="number">21</span>), (<span class="number">2</span>, <span class="number">34</span>), (<span class="number">4</span>, <span class="number">55</span>)];
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search_by_key</span>(<span class="kw-2">&amp;</span><span class="number">13</span>, <span class="op">|</span><span class="kw-2">&amp;</span>(<span class="ident">a</span>,<span class="ident">b</span>)<span class="op">|</span> <span class="ident">b</span>), <span class="prelude-val">Ok</span>(<span class="number">9</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search_by_key</span>(<span class="kw-2">&amp;</span><span class="number">4</span>, <span class="op">|</span><span class="kw-2">&amp;</span>(<span class="ident">a</span>,<span class="ident">b</span>)<span class="op">|</span> <span class="ident">b</span>), <span class="prelude-val">Err</span>(<span class="number">7</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">s</span>.<span class="ident">binary_search_by_key</span>(<span class="kw-2">&amp;</span><span class="number">100</span>, <span class="op">|</span><span class="kw-2">&amp;</span>(<span class="ident">a</span>,<span class="ident">b</span>)<span class="op">|</span> <span class="ident">b</span>), <span class="prelude-val">Err</span>(<span class="number">13</span>));
<span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">binary_search_by_key</span>(<span class="kw-2">&amp;</span><span class="number">1</span>, <span class="op">|</span><span class="kw-2">&amp;</span>(<span class="ident">a</span>,<span class="ident">b</span>)<span class="op">|</span> <span class="ident">b</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="kw">match</span> <span class="ident">r</span> { <span class="prelude-val">Ok</span>(<span class="number">1</span>...<span class="number">4</span>) <span class="op">=&gt;</span> <span class="bool-val">true</span>, _ <span class="op">=&gt;</span> <span class="bool-val">false</span>, });</pre>
</div><h4 id='method.sort' class="method"><span id='sort.v' class='invisible'><code>fn <a href='#method.sort' class='fnname'>sort</a>(&amp;mut self) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Sorts the slice.</p>
<p>This sort is stable (i.e. does not reorder equal elements) and <code>O(n log n)</code> worst-case.</p>
<h1 id='current-implementation' class='section-header'><a href='#current-implementation'>Current implementation</a></h1>
<p>The current algorithm is an adaptive, iterative merge sort inspired by
<a href="https://en.wikipedia.org/wiki/Timsort">timsort</a>.
It is designed to be very fast in cases where the slice is nearly sorted, or consists of
two or more sorted sequences concatenated one after another.</p>
<p>Also, it allocates temporary storage half the size of <code>self</code>, but for short slices a
non-allocating insertion sort is used instead.</p>
<h1 id='examples-32' class='section-header'><a href='#examples-32'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="op">-</span><span class="number">5</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">2</span>];
<span class="ident">v</span>.<span class="ident">sort</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="op">-</span><span class="number">5</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>]);</pre>
</div><h4 id='method.sort_by' class="method"><span id='sort_by.v' class='invisible'><code>fn <a href='#method.sort_by' class='fnname'>sort_by</a>&lt;F&gt;(&amp;mut self, compare: F) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T, &amp;T) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Sorts the slice with a comparator function.</p>
<p>This sort is stable (i.e. does not reorder equal elements) and <code>O(n log n)</code> worst-case.</p>
<h1 id='current-implementation-1' class='section-header'><a href='#current-implementation-1'>Current implementation</a></h1>
<p>The current algorithm is an adaptive, iterative merge sort inspired by
<a href="https://en.wikipedia.org/wiki/Timsort">timsort</a>.
It is designed to be very fast in cases where the slice is nearly sorted, or consists of
two or more sorted sequences concatenated one after another.</p>
<p>Also, it allocates temporary storage half the size of <code>self</code>, but for short slices a
non-allocating insertion sort is used instead.</p>
<h1 id='examples-33' class='section-header'><a href='#examples-33'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">5</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="number">3</span>, <span class="number">2</span>];
<span class="ident">v</span>.<span class="ident">sort_by</span>(<span class="op">|</span><span class="ident">a</span>, <span class="ident">b</span><span class="op">|</span> <span class="ident">a</span>.<span class="ident">cmp</span>(<span class="ident">b</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>]);
<span class="comment">// reverse sorting</span>
<span class="ident">v</span>.<span class="ident">sort_by</span>(<span class="op">|</span><span class="ident">a</span>, <span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">cmp</span>(<span class="ident">a</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="number">5</span>, <span class="number">4</span>, <span class="number">3</span>, <span class="number">2</span>, <span class="number">1</span>]);</pre>
</div><h4 id='method.sort_by_key' class="method"><span id='sort_by_key.v' class='invisible'><code>fn <a href='#method.sort_by_key' class='fnname'>sort_by_key</a>&lt;B, F&gt;(&amp;mut self, f: F) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; B,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.7.0'>1.7.0</div></span></h4>
<div class='docblock'><p>Sorts the slice with a key extraction function.</p>
<p>This sort is stable (i.e. does not reorder equal elements) and <code>O(n log n)</code> worst-case.</p>
<h1 id='current-implementation-2' class='section-header'><a href='#current-implementation-2'>Current implementation</a></h1>
<p>The current algorithm is an adaptive, iterative merge sort inspired by
<a href="https://en.wikipedia.org/wiki/Timsort">timsort</a>.
It is designed to be very fast in cases where the slice is nearly sorted, or consists of
two or more sorted sequences concatenated one after another.</p>
<p>Also, it allocates temporary storage half the size of <code>self</code>, but for short slices a
non-allocating insertion sort is used instead.</p>
<h1 id='examples-34' class='section-header'><a href='#examples-34'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="op">-</span><span class="number">5i32</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">2</span>];
<span class="ident">v</span>.<span class="ident">sort_by_key</span>(<span class="op">|</span><span class="ident">k</span><span class="op">|</span> <span class="ident">k</span>.<span class="ident">abs</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">4</span>, <span class="op">-</span><span class="number">5</span>]);</pre>
</div><h4 id='method.sort_unstable' class="method"><span id='sort_unstable.v' class='invisible'><code>fn <a href='#method.sort_unstable' class='fnname'>sort_unstable</a>(&amp;mut self) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,&nbsp;</span></code></span></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>sort_unstable</code>)</div></div><div class='docblock'><p>Sorts the slice, but may not preserve the order of equal elements.</p>
<p>This sort is unstable (i.e. may reorder equal elements), in-place (i.e. does not allocate),
and <code>O(n log n)</code> worst-case.</p>
<h1 id='current-implementation-3' class='section-header'><a href='#current-implementation-3'>Current implementation</a></h1>
<p>The current algorithm is based on Orson Peters&#39; <a href="https://github.com/orlp/pdqsort">pattern-defeating quicksort</a>,
which is a quicksort variant designed to be very fast on certain kinds of patterns,
sometimes achieving linear time. It is randomized but deterministic, and falls back to
heapsort on degenerate inputs.</p>
<p>It is generally faster than stable sorting, except in a few special cases, e.g. when the
slice consists of several concatenated sorted sequences.</p>
<h1 id='examples-35' class='section-header'><a href='#examples-35'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">sort_unstable</span>)]</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="op">-</span><span class="number">5</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">2</span>];
<span class="ident">v</span>.<span class="ident">sort_unstable</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="op">-</span><span class="number">5</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>]);</pre>
</div><h4 id='method.sort_unstable_by' class="method"><span id='sort_unstable_by.v' class='invisible'><code>fn <a href='#method.sort_unstable_by' class='fnname'>sort_unstable_by</a>&lt;F&gt;(&amp;mut self, compare: F) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T, &amp;T) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,&nbsp;</span></code></span></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>sort_unstable</code>)</div></div><div class='docblock'><p>Sorts the slice with a comparator function, but may not preserve the order of equal
elements.</p>
<p>This sort is unstable (i.e. may reorder equal elements), in-place (i.e. does not allocate),
and <code>O(n log n)</code> worst-case.</p>
<h1 id='current-implementation-4' class='section-header'><a href='#current-implementation-4'>Current implementation</a></h1>
<p>The current algorithm is based on Orson Peters&#39; <a href="https://github.com/orlp/pdqsort">pattern-defeating quicksort</a>,
which is a quicksort variant designed to be very fast on certain kinds of patterns,
sometimes achieving linear time. It is randomized but deterministic, and falls back to
heapsort on degenerate inputs.</p>
<p>It is generally faster than stable sorting, except in a few special cases, e.g. when the
slice consists of several concatenated sorted sequences.</p>
<h1 id='examples-36' class='section-header'><a href='#examples-36'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">sort_unstable</span>)]</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="number">5</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="number">3</span>, <span class="number">2</span>];
<span class="ident">v</span>.<span class="ident">sort_unstable_by</span>(<span class="op">|</span><span class="ident">a</span>, <span class="ident">b</span><span class="op">|</span> <span class="ident">a</span>.<span class="ident">cmp</span>(<span class="ident">b</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>]);
<span class="comment">// reverse sorting</span>
<span class="ident">v</span>.<span class="ident">sort_unstable_by</span>(<span class="op">|</span><span class="ident">a</span>, <span class="ident">b</span><span class="op">|</span> <span class="ident">b</span>.<span class="ident">cmp</span>(<span class="ident">a</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="number">5</span>, <span class="number">4</span>, <span class="number">3</span>, <span class="number">2</span>, <span class="number">1</span>]);</pre>
</div><h4 id='method.sort_unstable_by_key' class="method"><span id='sort_unstable_by_key.v' class='invisible'><code>fn <a href='#method.sort_unstable_by_key' class='fnname'>sort_unstable_by_key</a>&lt;B, F&gt;(&amp;mut self, f: F) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;T) -&gt; B,&nbsp;</span></code></span></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>sort_unstable</code>)</div></div><div class='docblock'><p>Sorts the slice with a key extraction function, but may not preserve the order of equal
elements.</p>
<p>This sort is unstable (i.e. may reorder equal elements), in-place (i.e. does not allocate),
and <code>O(n log n)</code> worst-case.</p>
<h1 id='current-implementation-5' class='section-header'><a href='#current-implementation-5'>Current implementation</a></h1>
<p>The current algorithm is based on Orson Peters&#39; <a href="https://github.com/orlp/pdqsort">pattern-defeating quicksort</a>,
which is a quicksort variant designed to be very fast on certain kinds of patterns,
sometimes achieving linear time. It is randomized but deterministic, and falls back to
heapsort on degenerate inputs.</p>
<p>It is generally faster than stable sorting, except in a few special cases, e.g. when the
slice consists of several concatenated sorted sequences.</p>
<h1 id='examples-37' class='section-header'><a href='#examples-37'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">sort_unstable</span>)]</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> [<span class="op">-</span><span class="number">5i32</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">2</span>];
<span class="ident">v</span>.<span class="ident">sort_unstable_by_key</span>(<span class="op">|</span><span class="ident">k</span><span class="op">|</span> <span class="ident">k</span>.<span class="ident">abs</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="op">-</span><span class="number">3</span>, <span class="number">4</span>, <span class="op">-</span><span class="number">5</span>]);</pre>
</div><h4 id='method.rotate' class="method"><span id='rotate.v' class='invisible'><code>fn <a href='#method.rotate' class='fnname'>rotate</a>(&amp;mut self, mid: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code></span></h4>
<div class='stability'><div class='stab unstable'><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>slice_rotate</code>)</div></div><div class='docblock'><p>Permutes the slice in-place such that <code>self[mid..]</code> moves to the
beginning of the slice while <code>self[..mid]</code> moves to the end of the
slice. Equivalently, rotates the slice <code>mid</code> places to the left
or <code>k = self.len() - mid</code> places to the right.</p>
<p>This is a &quot;k-rotation&quot;, a permutation in which item <code>i</code> moves to
position <code>i + k</code>, modulo the length of the slice. See <em>Elements
of Programming</em> <a href="https://books.google.com/books?id=CO9ULZGINlsC&amp;pg=PA178&amp;q=k-rotation">§10.4</a>.</p>
<p>Rotation by <code>mid</code> and rotation by <code>k</code> are inverse operations.</p>
<h1 id='panics-6' class='section-header'><a href='#panics-6'>Panics</a></h1>
<p>This function will panic if <code>mid</code> is greater than the length of the
slice. (Note that <code>mid == self.len()</code> does <em>not</em> panic; it&#39;s a nop
rotation with <code>k == 0</code>, the inverse of a rotation with <code>mid == 0</code>.)</p>
<h1 id='complexity' class='section-header'><a href='#complexity'>Complexity</a></h1>
<p>Takes linear (in <code>self.len()</code>) time.</p>
<h1 id='examples-38' class='section-header'><a href='#examples-38'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">slice_rotate</span>)]</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">a</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>];
<span class="kw">let</span> <span class="ident">mid</span> <span class="op">=</span> <span class="number">2</span>;
<span class="ident">a</span>.<span class="ident">rotate</span>(<span class="ident">mid</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="ident">a</span>, <span class="kw-2">&amp;</span>[<span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>, <span class="number">1</span>, <span class="number">2</span>]);
<span class="kw">let</span> <span class="ident">k</span> <span class="op">=</span> <span class="ident">a</span>.<span class="ident">len</span>() <span class="op">-</span> <span class="ident">mid</span>;
<span class="ident">a</span>.<span class="ident">rotate</span>(<span class="ident">k</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="ident">a</span>, <span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>]);
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ops</span>::<span class="ident">Range</span>;
<span class="kw">fn</span> <span class="ident">slide</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span>(<span class="ident">slice</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="ident">T</span>], <span class="ident">range</span>: <span class="ident">Range</span><span class="op">&lt;</span><span class="ident">usize</span><span class="op">&gt;</span>, <span class="ident">to</span>: <span class="ident">usize</span>) {
<span class="kw">if</span> <span class="ident">to</span> <span class="op">&lt;</span> <span class="ident">range</span>.<span class="ident">start</span> {
<span class="ident">slice</span>[<span class="ident">to</span>..<span class="ident">range</span>.<span class="ident">end</span>].<span class="ident">rotate</span>(<span class="ident">range</span>.<span class="ident">start</span><span class="op">-</span><span class="ident">to</span>);
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">to</span> <span class="op">&gt;</span> <span class="ident">range</span>.<span class="ident">end</span> {
<span class="ident">slice</span>[<span class="ident">range</span>.<span class="ident">start</span>..<span class="ident">to</span>].<span class="ident">rotate</span>(<span class="ident">range</span>.<span class="ident">end</span><span class="op">-</span><span class="ident">range</span>.<span class="ident">start</span>);
}
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span>: <span class="ident">Vec</span><span class="op">&lt;</span>_<span class="op">&gt;</span> <span class="op">=</span> (<span class="number">0</span>..<span class="number">10</span>).<span class="ident">collect</span>();
<span class="ident">slide</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">v</span>, <span class="number">1</span>..<span class="number">4</span>, <span class="number">7</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="ident">v</span>, <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">7</span>, <span class="number">8</span>, <span class="number">9</span>]);
<span class="ident">slide</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">v</span>, <span class="number">6</span>..<span class="number">8</span>, <span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="ident">v</span>, <span class="kw-2">&amp;</span>[<span class="number">0</span>, <span class="number">3</span>, <span class="number">7</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">8</span>, <span class="number">9</span>]);</pre>
</div><h4 id='method.clone_from_slice' class="method"><span id='clone_from_slice.v' class='invisible'><code>fn <a href='#method.clone_from_slice' class='fnname'>clone_from_slice</a>(&amp;mut self, src: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a>) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.7.0'>1.7.0</div></span></h4>
<div class='docblock'><p>Copies the elements from <code>src</code> into <code>self</code>.</p>
<p>The length of <code>src</code> must be the same as <code>self</code>.</p>
<p>If <code>src</code> implements <code>Copy</code>, it can be more performant to use
<a href="#method.copy_from_slice"><code>copy_from_slice</code></a>.</p>
<h1 id='panics-7' class='section-header'><a href='#panics-7'>Panics</a></h1>
<p>This function will panic if the two slices have different lengths.</p>
<h1 id='example-7' class='section-header'><a href='#example-7'>Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dst</span> <span class="op">=</span> [<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>];
<span class="kw">let</span> <span class="ident">src</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>];
<span class="ident">dst</span>.<span class="ident">clone_from_slice</span>(<span class="kw-2">&amp;</span><span class="ident">src</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">dst</span> <span class="op">==</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]);</pre>
</div><h4 id='method.copy_from_slice' class="method"><span id='copy_from_slice.v' class='invisible'><code>fn <a href='#method.copy_from_slice' class='fnname'>copy_from_slice</a>(&amp;mut self, src: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[T]</a>) <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.9.0'>1.9.0</div></span></h4>
<div class='docblock'><p>Copies all elements from <code>src</code> into <code>self</code>, using a memcpy.</p>
<p>The length of <code>src</code> must be the same as <code>self</code>.</p>
<p>If <code>src</code> does not implement <code>Copy</code>, use <a href="#method.clone_from_slice"><code>clone_from_slice</code></a>.</p>
<h1 id='panics-8' class='section-header'><a href='#panics-8'>Panics</a></h1>
<p>This function will panic if the two slices have different lengths.</p>
<h1 id='example-8' class='section-header'><a href='#example-8'>Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dst</span> <span class="op">=</span> [<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>];
<span class="kw">let</span> <span class="ident">src</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>];
<span class="ident">dst</span>.<span class="ident">copy_from_slice</span>(<span class="kw-2">&amp;</span><span class="ident">src</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">src</span>, <span class="ident">dst</span>);</pre>
</div><h4 id='method.to_vec' class="method"><span id='to_vec.v' class='invisible'><code>fn <a href='#method.to_vec' class='fnname'>to_vec</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,&nbsp;</span></code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></span></h4>
<div class='docblock'><p>Copies <code>self</code> into a new <code>Vec</code>.</p>
<h1 id='examples-39' class='section-header'><a href='#examples-39'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> [<span class="number">10</span>, <span class="number">40</span>, <span class="number">30</span>];
<span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">to_vec</span>();
<span class="comment">// Here, `s` and `x` can be modified independently.</span></pre>
</div></div><h2 id='implementations'>Trait Implementations</h2><h3 class='impl'><span class='in-band'><code>impl&lt;'a&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html" title="trait core::ops::drop::Drop">Drop</a> for <a class="struct" href="../cairo/struct.ImageSurfaceData.html" title="struct cairo::ImageSurfaceData">ImageSurfaceData</a>&lt;'a&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/cairo/image_surface.rs.html#159-165' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.drop' class="method"><span id='drop.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop' class='fnname'>drop</a>(&amp;mut self)</code></span></h4>
<div class='docblock'><p>A method called when the value goes out of scope. <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop">Read more</a></p>
</div></div><h3 class='impl'><span class='in-band'><code>impl&lt;'a&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a> for <a class="struct" href="../cairo/struct.ImageSurfaceData.html" title="struct cairo::ImageSurfaceData">ImageSurfaceData</a>&lt;'a&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/cairo/image_surface.rs.html#167-173' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Target' class="type"><span id='Target.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target' class="type">Target</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span></h4>
<div class='docblock'><p>The resulting type after dereferencing</p>
</div><h4 id='method.deref' class="method"><span id='deref.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#tymethod.deref' class='fnname'>deref</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span></h4>
<div class='docblock'><p>The method called to dereference a value</p>
</div></div><h3 class='impl'><span class='in-band'><code>impl&lt;'a&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.DerefMut.html" title="trait core::ops::deref::DerefMut">DerefMut</a> for <a class="struct" href="../cairo/struct.ImageSurfaceData.html" title="struct cairo::ImageSurfaceData">ImageSurfaceData</a>&lt;'a&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/cairo/image_surface.rs.html#175-180' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.deref_mut' class="method"><span id='deref_mut.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/deref/trait.DerefMut.html#tymethod.deref_mut' class='fnname'>deref_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span></h4>
<div class='docblock'><p>The method called to mutably dereference a value</p>
</div></div></section>
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