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<p class='location'>Module mem</p><div class="block items"><ul><li><a href="#reexports">Reexports</a></li><li><a href="#structs">Structs</a></li><li><a href="#functions">Functions</a></li><li><a href="#unions">Unions</a></li></ul></div><p class='location'><a href='../index.html'>core</a></p><script>window.sidebarCurrent = {name: 'mem', ty: 'mod', relpath: '../'};</script><script defer src="../sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Module <a href='../index.html'>core</a>::<wbr><a class="mod" href=''>mem</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</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/mem.rs.html#11-908' title='goto source code'>[src]</a></span></h1>
<div class='docblock'><p>Basic functions for dealing with memory.</p>
<p>This module contains functions for querying the size and alignment of
types, initializing and manipulating memory.</p>
</div><h2 id='reexports' class='section-header'><a href="#reexports">Reexports</a></h2>
<table><tr><td><code>pub use intrinsics::<a class="fn" href="../../core/intrinsics/fn.transmute.html" title="fn core::intrinsics::transmute">transmute</a>;</code></td></tr></table><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
<table>
<tr class='unstable module-item'>
<td><a class="struct" href="struct.Discriminant.html"
title='struct core::mem::Discriminant'>Discriminant</a></td>
<td class='docblock-short'>
[<div class='stab unstable'>Experimental</div>] <p>Opaque type representing the discriminant of an enum.</p>
</td>
</tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
<table>
<tr class=' module-item'>
<td><a class="fn" href="fn.align_of.html"
title='fn core::mem::align_of'>align_of</a></td>
<td class='docblock-short'>
<p>Returns the <a href="https://en.wikipedia.org/wiki/Application_binary_interface">ABI</a>-required minimum alignment of a type.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.align_of_val.html"
title='fn core::mem::align_of_val'>align_of_val</a></td>
<td class='docblock-short'>
<p>Returns the <a href="https://en.wikipedia.org/wiki/Application_binary_interface">ABI</a>-required minimum alignment of the type of the value that <code>val</code> points to.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.drop.html"
title='fn core::mem::drop'>drop</a></td>
<td class='docblock-short'>
<p>Disposes of a value.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.forget.html"
title='fn core::mem::forget'>forget</a></td>
<td class='docblock-short'>
<p>Leaks a value: takes ownership and "forgets" about the value <strong>without running
its destructor</strong>.</p>
</td>
</tr>
<tr class='deprecated module-item'>
<td><a class="fn" href="fn.min_align_of.html"
title='fn core::mem::min_align_of'>min_align_of</a></td>
<td class='docblock-short'>
[<div class='stab deprecated'>Deprecated</div>] <p>Returns the <a href="https://en.wikipedia.org/wiki/Application_binary_interface">ABI</a>-required minimum alignment of a type.</p>
</td>
</tr>
<tr class='deprecated module-item'>
<td><a class="fn" href="fn.min_align_of_val.html"
title='fn core::mem::min_align_of_val'>min_align_of_val</a></td>
<td class='docblock-short'>
[<div class='stab deprecated'>Deprecated</div>] <p>Returns the <a href="https://en.wikipedia.org/wiki/Application_binary_interface">ABI</a>-required minimum alignment of the type of the value that <code>val</code> points to.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.replace.html"
title='fn core::mem::replace'>replace</a></td>
<td class='docblock-short'>
<p>Replaces the value at a mutable location with a new one, returning the old value, without
deinitializing either one.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.size_of.html"
title='fn core::mem::size_of'>size_of</a></td>
<td class='docblock-short'>
<p>Returns the size of a type in bytes.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.size_of_val.html"
title='fn core::mem::size_of_val'>size_of_val</a></td>
<td class='docblock-short'>
<p>Returns the size of the pointed-to value in bytes.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.swap.html"
title='fn core::mem::swap'>swap</a></td>
<td class='docblock-short'>
<p>Swaps the values at two mutable locations, without deinitializing either one.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.transmute_copy.html"
title='fn core::mem::transmute_copy'>transmute_copy</a><a title='unsafe function' href='#'><sup>⚠</sup></a></td>
<td class='docblock-short'>
<p>Interprets <code>src</code> as having type <code>&U</code>, and then reads <code>src</code> without moving
the contained value.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.uninitialized.html"
title='fn core::mem::uninitialized'>uninitialized</a><a title='unsafe function' href='#'><sup>⚠</sup></a></td>
<td class='docblock-short'>
<p>Bypasses Rust's normal memory-initialization checks by pretending to
produce a value of type <code>T</code>, while doing nothing at all.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.zeroed.html"
title='fn core::mem::zeroed'>zeroed</a><a title='unsafe function' href='#'><sup>⚠</sup></a></td>
<td class='docblock-short'>
<p>Creates a value whose bytes are all zero.</p>
</td>
</tr>
<tr class='unstable module-item'>
<td><a class="fn" href="fn.discriminant.html"
title='fn core::mem::discriminant'>discriminant</a></td>
<td class='docblock-short'>
[<div class='stab unstable'>Experimental</div>] <p>Returns a value uniquely identifying the enum variant in <code>v</code>.</p>
</td>
</tr>
<tr class='unstable module-item'>
<td><a class="fn" href="fn.needs_drop.html"
title='fn core::mem::needs_drop'>needs_drop</a></td>
<td class='docblock-short'>
[<div class='stab unstable'>Experimental</div>] <p>Returns whether dropping values of type <code>T</code> matters.</p>
</td>
</tr></table><h2 id='unions' class='section-header'><a href="#unions">Unions</a></h2>
<table>
<tr class='unstable module-item'>
<td><a class="union" href="union.ManuallyDrop.html"
title='union core::mem::ManuallyDrop'>ManuallyDrop</a></td>
<td class='docblock-short'>
[<div class='stab unstable'>Experimental</div>] <p>A wrapper to inhibit compiler from automatically calling <code>T</code>’s destructor.</p>
</td>
</tr></table></section>
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