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<p class='location'>Trait BitAndAssign</p><div class="block items"><ul><li><a href="#required-methods">Required Methods</a></li><li><a href="#implementors">Implementors</a></li></ul></div><p class='location'><a href='../index.html'>std</a>::<wbr><a href='index.html'>ops</a></p><script>window.sidebarCurrent = {name: 'BitAndAssign', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>std</a>::<wbr><a href='index.html'>ops</a>::<wbr><a class="trait" href=''>BitAndAssign</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version 1.8.0'>1.8.0</span><span id='render-detail'>
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
[<span class='inner'>−</span>]
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</span><a class='srclink' href='../../src/core/ops.rs.html#1697-1701' title='goto source code'>[src]</a></span></h1>
<pre class='rust trait'><div class="docblock attributes">#[lang = "bitand_assign"]
</div>pub trait BitAndAssign<Rhs = Self> {
fn <a href='#tymethod.bitand_assign' class='fnname'>bitand_assign</a>(&mut self, rhs: Rhs);
}</pre><div class='docblock'><p>The bitwise AND assignment operator <code>&=</code>.</p>
<h1 id='examples' class='section-header'><a href='#examples'>Examples</a></h1>
<p>In this example, the <code>&=</code> operator is lifted to a trivial <code>Scalar</code> type.</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ops</span>::<span class="ident">BitAndAssign</span>;
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">PartialEq</span>)]</span>
<span class="kw">struct</span> <span class="ident">Scalar</span>(<span class="ident">bool</span>);
<span class="kw">impl</span> <span class="ident">BitAndAssign</span> <span class="kw">for</span> <span class="ident">Scalar</span> {
<span class="comment">// rhs is the "right-hand side" of the expression `a &= b`</span>
<span class="kw">fn</span> <span class="ident">bitand_assign</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">rhs</span>: <span class="self">Self</span>) {
<span class="kw-2">*</span><span class="self">self</span> <span class="op">=</span> <span class="ident">Scalar</span>(<span class="self">self</span>.<span class="number">0</span> <span class="op">&</span> <span class="ident">rhs</span>.<span class="number">0</span>)
}
}
<span class="kw">fn</span> <span class="ident">main</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">scalar</span> <span class="op">=</span> <span class="ident">Scalar</span>(<span class="bool-val">true</span>);
<span class="ident">scalar</span> <span class="op">&=</span> <span class="ident">Scalar</span>(<span class="bool-val">true</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scalar</span>, <span class="ident">Scalar</span>(<span class="bool-val">true</span>));
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">scalar</span> <span class="op">=</span> <span class="ident">Scalar</span>(<span class="bool-val">true</span>);
<span class="ident">scalar</span> <span class="op">&=</span> <span class="ident">Scalar</span>(<span class="bool-val">false</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scalar</span>, <span class="ident">Scalar</span>(<span class="bool-val">false</span>));
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">scalar</span> <span class="op">=</span> <span class="ident">Scalar</span>(<span class="bool-val">false</span>);
<span class="ident">scalar</span> <span class="op">&=</span> <span class="ident">Scalar</span>(<span class="bool-val">true</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scalar</span>, <span class="ident">Scalar</span>(<span class="bool-val">false</span>));
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">scalar</span> <span class="op">=</span> <span class="ident">Scalar</span>(<span class="bool-val">false</span>);
<span class="ident">scalar</span> <span class="op">&=</span> <span class="ident">Scalar</span>(<span class="bool-val">false</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scalar</span>, <span class="ident">Scalar</span>(<span class="bool-val">false</span>));
}<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=use%20std%3A%3Aops%3A%3ABitAndAssign%3B%0A%0A%23%5Bderive(Debug%2C%20PartialEq)%5D%0Astruct%20Scalar(bool)%3B%0A%0Aimpl%20BitAndAssign%20for%20Scalar%20%7B%0A%20%20%20%20%2F%2F%20rhs%20is%20the%20%22right-hand%20side%22%20of%20the%20expression%20%60a%20%26%3D%20b%60%0A%20%20%20%20fn%20bitand_assign(%26mut%20self%2C%20rhs%3A%20Self)%20%7B%0A%20%20%20%20%20%20%20%20*self%20%3D%20Scalar(self.0%20%26%20rhs.0)%0A%20%20%20%20%7D%0A%7D%0A%0Afn%20main()%20%7B%0A%20%20%20%20let%20mut%20scalar%20%3D%20Scalar(true)%3B%0A%20%20%20%20scalar%20%26%3D%20Scalar(true)%3B%0A%20%20%20%20assert_eq!(scalar%2C%20Scalar(true))%3B%0A%0A%20%20%20%20let%20mut%20scalar%20%3D%20Scalar(true)%3B%0A%20%20%20%20scalar%20%26%3D%20Scalar(false)%3B%0A%20%20%20%20assert_eq!(scalar%2C%20Scalar(false))%3B%0A%0A%20%20%20%20let%20mut%20scalar%20%3D%20Scalar(false)%3B%0A%20%20%20%20scalar%20%26%3D%20Scalar(true)%3B%0A%20%20%20%20assert_eq!(scalar%2C%20Scalar(false))%3B%0A%0A%20%20%20%20let%20mut%20scalar%20%3D%20Scalar(false)%3B%0A%20%20%20%20scalar%20%26%3D%20Scalar(false)%3B%0A%20%20%20%20assert_eq!(scalar%2C%20Scalar(false))%3B%0A%7D%0A">Run</a></pre>
<p>In this example, the <code>BitAndAssign</code> trait is implemented for a
<code>BooleanVector</code> struct.</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ops</span>::<span class="ident">BitAndAssign</span>;
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">PartialEq</span>)]</span>
<span class="kw">struct</span> <span class="ident">BooleanVector</span>(<span class="ident">Vec</span><span class="op"><</span><span class="ident">bool</span><span class="op">></span>);
<span class="kw">impl</span> <span class="ident">BitAndAssign</span> <span class="kw">for</span> <span class="ident">BooleanVector</span> {
<span class="comment">// rhs is the "right-hand side" of the expression `a &= b`</span>
<span class="kw">fn</span> <span class="ident">bitand_assign</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">rhs</span>: <span class="self">Self</span>) {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="self">self</span>.<span class="number">0</span>.<span class="ident">len</span>(), <span class="ident">rhs</span>.<span class="number">0</span>.<span class="ident">len</span>());
<span class="kw-2">*</span><span class="self">self</span> <span class="op">=</span> <span class="ident">BooleanVector</span>(<span class="self">self</span>.<span class="number">0</span>
.<span class="ident">iter</span>()
.<span class="ident">zip</span>(<span class="ident">rhs</span>.<span class="number">0</span>.<span class="ident">iter</span>())
.<span class="ident">map</span>(<span class="op">|</span>(<span class="ident">x</span>, <span class="ident">y</span>)<span class="op">|</span> <span class="kw-2">*</span><span class="ident">x</span> <span class="op">&&</span> <span class="kw-2">*</span><span class="ident">y</span>)
.<span class="ident">collect</span>());
}
}
<span class="kw">fn</span> <span class="ident">main</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">bv</span> <span class="op">=</span> <span class="ident">BooleanVector</span>(<span class="macro">vec</span><span class="macro">!</span>[<span class="bool-val">true</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>]);
<span class="ident">bv</span> <span class="op">&=</span> <span class="ident">BooleanVector</span>(<span class="macro">vec</span><span class="macro">!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>]);
<span class="kw">let</span> <span class="ident">expected</span> <span class="op">=</span> <span class="ident">BooleanVector</span>(<span class="macro">vec</span><span class="macro">!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">bv</span>, <span class="ident">expected</span>);
}<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=use%20std%3A%3Aops%3A%3ABitAndAssign%3B%0A%0A%23%5Bderive(Debug%2C%20PartialEq)%5D%0Astruct%20BooleanVector(Vec%3Cbool%3E)%3B%0A%0Aimpl%20BitAndAssign%20for%20BooleanVector%20%7B%0A%20%20%20%20%2F%2F%20rhs%20is%20the%20%22right-hand%20side%22%20of%20the%20expression%20%60a%20%26%3D%20b%60%0A%20%20%20%20fn%20bitand_assign(%26mut%20self%2C%20rhs%3A%20Self)%20%7B%0A%20%20%20%20%20%20%20%20assert_eq!(self.0.len()%2C%20rhs.0.len())%3B%0A%20%20%20%20%20%20%20%20*self%20%3D%20BooleanVector(self.0%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20.iter()%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20.zip(rhs.0.iter())%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20.map(%7C(x%2C%20y)%7C%20*x%20%26%26%20*y)%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20.collect())%3B%0A%20%20%20%20%7D%0A%7D%0A%0Afn%20main()%20%7B%0A%20%20%20%20let%20mut%20bv%20%3D%20BooleanVector(vec!%5Btrue%2C%20true%2C%20false%2C%20false%5D)%3B%0A%20%20%20%20bv%20%26%3D%20BooleanVector(vec!%5Btrue%2C%20false%2C%20true%2C%20false%5D)%3B%0A%20%20%20%20let%20expected%20%3D%20BooleanVector(vec!%5Btrue%2C%20false%2C%20false%2C%20false%5D)%3B%0A%20%20%20%20assert_eq!(bv%2C%20expected)%3B%0A%7D%0A">Run</a></pre>
</div>
<h2 id='required-methods'>Required Methods</h2>
<div class='methods'>
<h3 id='tymethod.bitand_assign' class='method'><span id='bitand_assign.v' class='invisible'><code>fn <a href='#tymethod.bitand_assign' class='fnname'>bitand_assign</a>(&mut self, rhs: Rhs)</code></span></h3><div class='docblock'><p>The method for the <code>&=</code> operator</p>
</div></div>
<h2 id='implementors'>Implementors</h2>
<ul class='item-list' id='implementors-list'>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i64.html">i64</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i64.html">i64</a>></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.u8.html">u8</a>> for <a class="primitive" href="../primitive.u8.html">u8</a></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.i32.html">i32</a>> for <a class="primitive" href="../primitive.i32.html">i32</a></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.u32.html">u32</a>> for <a class="primitive" href="../primitive.u32.html">u32</a></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u128.html">u128</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u128.html">u128</a>></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i32.html">i32</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i32.html">i32</a>></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i16.html">i16</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i16.html">i16</a>></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.u128.html">u128</a>> for <a class="primitive" href="../primitive.u128.html">u128</a></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.i128.html">i128</a>> for <a class="primitive" href="../primitive.i128.html">i128</a></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u16.html">u16</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u16.html">u16</a>></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u32.html">u32</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u32.html">u32</a>></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.i16.html">i16</a>> for <a class="primitive" href="../primitive.i16.html">i16</a></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.i64.html">i64</a>> for <a class="primitive" href="../primitive.i64.html">i64</a></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u64.html">u64</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u64.html">u64</a>></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.usize.html">usize</a>> for <a class="primitive" href="../primitive.usize.html">usize</a></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u8.html">u8</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.u8.html">u8</a>></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.u16.html">u16</a>> for <a class="primitive" href="../primitive.u16.html">u16</a></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i8.html">i8</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i8.html">i8</a>></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.usize.html">usize</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.usize.html">usize</a>></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.bool.html">bool</a>> for <a class="primitive" href="../primitive.bool.html">bool</a></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.isize.html">isize</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.isize.html">isize</a>></code></li>
<li><code>impl BitAndAssign<<a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i128.html">i128</a>>> for <a class="struct" href="../../std/num/struct.Wrapping.html" title="struct std::num::Wrapping">Wrapping</a><<a class="primitive" href="../primitive.i128.html">i128</a>></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.u64.html">u64</a>> for <a class="primitive" href="../primitive.u64.html">u64</a></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.i8.html">i8</a>> for <a class="primitive" href="../primitive.i8.html">i8</a></code></li>
<li><code>impl BitAndAssign<<a class="primitive" href="../primitive.isize.html">isize</a>> for <a class="primitive" href="../primitive.isize.html">isize</a></code></li>
</ul><script type="text/javascript" async
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