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<p class='location'>Struct Atomic</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.null">null</a><a href="#method.new">new</a><a href="#method.load">load</a><a href="#method.store">store</a><a href="#method.store_and_ref">store_and_ref</a><a href="#method.store_shared">store_shared</a><a href="#method.cas">cas</a><a href="#method.cas_and_ref">cas_and_ref</a><a href="#method.cas_shared">cas_shared</a><a href="#method.swap">swap</a><a href="#method.swap_shared">swap_shared</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a></div></div><p class='location'><a href='../index.html'>crossbeam</a>::<wbr><a href='index.html'>epoch</a></p><script>window.sidebarCurrent = {name: 'Atomic', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='../index.html'>crossbeam</a>::<wbr><a href='index.html'>epoch</a>::<wbr><a class="struct" href=''>Atomic</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</span><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#13-16' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct Atomic<T> { /* fields omitted */ }</pre><div class='docblock'><p>Like <code>std::sync::atomic::AtomicPtr</code>.</p>
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<p>Provides atomic access to a (nullable) pointer of type <code>T</code>, interfacing with
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the <code>Owned</code> and <code>Shared</code> types.</p>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl<T> <a class="struct" href="../../crossbeam/epoch/struct.Atomic.html" title="struct crossbeam::epoch::Atomic">Atomic</a><T></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#35-181' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.null' class="method"><span id='null.v' class='invisible'><code>pub fn <a href='#method.null' class='fnname'>null</a>() -> <a class="struct" href="../../crossbeam/epoch/struct.Atomic.html" title="struct crossbeam::epoch::Atomic">Atomic</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#46-51' title='goto source code'>[src]</a></span></h4>
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<h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>pub fn <a href='#method.new' class='fnname'>new</a>(data: T) -> <a class="struct" href="../../crossbeam/epoch/struct.Atomic.html" title="struct crossbeam::epoch::Atomic">Atomic</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#54-59' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Create a new atomic pointer</p>
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</div><h4 id='method.load' class="method"><span id='load.v' class='invisible'><code>pub fn <a href='#method.load' class='fnname'>load</a><'a>(&self, ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a>, _: &'a <a class="struct" href="../../crossbeam/epoch/struct.Guard.html" title="struct crossbeam::epoch::Guard">Guard</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><'a, T>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#72-74' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do an atomic load with the given memory ordering.</p>
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<p>In order to perform the load, we must pass in a borrow of a
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<code>Guard</code>. This is a way of guaranteeing that the thread has pinned the
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epoch for the entire lifetime <code>'a</code>. In return, you get an optional
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<code>Shared</code> pointer back (<code>None</code> if the <code>Atomic</code> is currently null), with
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lifetime tied to the guard.</p>
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<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
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<p>Panics if <code>ord</code> is <code>Release</code> or <code>AcqRel</code>.</p>
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</div><h4 id='method.store' class="method"><span id='store.v' class='invisible'><code>pub fn <a href='#method.store' class='fnname'>store</a>(&self, val: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Owned.html" title="struct crossbeam::epoch::Owned">Owned</a><T>>, ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#84-86' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do an atomic store with the given memory ordering.</p>
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<p>Transfers ownership of the given <code>Owned</code> pointer, if any. Since no
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lifetime information is acquired, no <code>Guard</code> value is needed.</p>
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<h1 id="panics-1" class="section-header"><a href="#panics-1">Panics</a></h1>
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<p>Panics if <code>ord</code> is <code>Acquire</code> or <code>AcqRel</code>.</p>
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</div><h4 id='method.store_and_ref' class="method"><span id='store_and_ref.v' class='invisible'><code>pub fn <a href='#method.store_and_ref' class='fnname'>store_and_ref</a><'a>(<br> &self, <br> val: <a class="struct" href="../../crossbeam/epoch/struct.Owned.html" title="struct crossbeam::epoch::Owned">Owned</a><T>, <br> ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a>, <br> _: &'a <a class="struct" href="../../crossbeam/epoch/struct.Guard.html" title="struct crossbeam::epoch::Guard">Guard</a><br>) -> <a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><'a, T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#98-106' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do an atomic store with the given memory ordering, immediately yielding
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a shared reference to the pointer that was stored.</p>
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<p>Transfers ownership of the given <code>Owned</code> pointer, yielding a <code>Shared</code>
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reference to it. Since the reference is valid only for the curent epoch,
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it's lifetime is tied to a <code>Guard</code> value.</p>
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<h1 id="panics-2" class="section-header"><a href="#panics-2">Panics</a></h1>
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<p>Panics if <code>ord</code> is <code>Acquire</code> or <code>AcqRel</code>.</p>
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</div><h4 id='method.store_shared' class="method"><span id='store_shared.v' class='invisible'><code>pub fn <a href='#method.store_shared' class='fnname'>store_shared</a>(&self, val: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><T>>, ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#116-118' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do an atomic store of a <code>Shared</code> pointer with the given memory ordering.</p>
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<p>This operation does not require a guard, because it does not yield any
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new information about the lifetime of a pointer.</p>
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<h1 id="panics-3" class="section-header"><a href="#panics-3">Panics</a></h1>
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<p>Panics if <code>ord</code> is <code>Acquire</code> or <code>AcqRel</code>.</p>
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</div><h4 id='method.cas' class="method"><span id='cas.v' class='invisible'><code>pub fn <a href='#method.cas' class='fnname'>cas</a>(<br> &self, <br> old: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><T>>, <br> new: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Owned.html" title="struct crossbeam::epoch::Owned">Owned</a><T>>, <br> ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Owned.html" title="struct crossbeam::epoch::Owned">Owned</a><T>>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#126-138' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do a compare-and-set from a <code>Shared</code> to an <code>Owned</code> pointer with the
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given memory ordering.</p>
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<p>As with <code>store</code>, this operation does not require a guard; it produces no new
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lifetime information. The <code>Result</code> indicates whether the CAS succeeded; if
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not, ownership of the <code>new</code> pointer is returned to the caller.</p>
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</div><h4 id='method.cas_and_ref' class="method"><span id='cas_and_ref.v' class='invisible'><code>pub fn <a href='#method.cas_and_ref' class='fnname'>cas_and_ref</a><'a>(<br> &self, <br> old: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><T>>, <br> new: <a class="struct" href="../../crossbeam/epoch/struct.Owned.html" title="struct crossbeam::epoch::Owned">Owned</a><T>, <br> ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a>, <br> _: &'a <a class="struct" href="../../crossbeam/epoch/struct.Guard.html" title="struct crossbeam::epoch::Guard">Guard</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><'a, T>, <a class="struct" href="../../crossbeam/epoch/struct.Owned.html" title="struct crossbeam::epoch::Owned">Owned</a><T>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#145-156' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do a compare-and-set from a <code>Shared</code> to an <code>Owned</code> pointer with the
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given memory ordering, immediatley acquiring a new <code>Shared</code> reference to
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the previously-owned pointer if successful.</p>
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<p>This operation is analogous to <code>store_and_ref</code>.</p>
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</div><h4 id='method.cas_shared' class="method"><span id='cas_shared.v' class='invisible'><code>pub fn <a href='#method.cas_shared' class='fnname'>cas_shared</a>(<br> &self, <br> old: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><T>>, <br> new: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><T>>, <br> ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a><br>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#162-168' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do a compare-and-set from a <code>Shared</code> to another <code>Shared</code> pointer with
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the given memory ordering.</p>
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<p>The boolean return value is <code>true</code> when the CAS is successful.</p>
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</div><h4 id='method.swap' class="method"><span id='swap.v' class='invisible'><code>pub fn <a href='#method.swap' class='fnname'>swap</a><'a>(<br> &self, <br> new: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Owned.html" title="struct crossbeam::epoch::Owned">Owned</a><T>>, <br> ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a>, <br> _: &'a <a class="struct" href="../../crossbeam/epoch/struct.Guard.html" title="struct crossbeam::epoch::Guard">Guard</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><'a, T>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#171-174' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do an atomic swap with an <code>Owned</code> pointer with the given memory ordering.</p>
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</div><h4 id='method.swap_shared' class="method"><span id='swap_shared.v' class='invisible'><code>pub fn <a href='#method.swap_shared' class='fnname'>swap_shared</a><'a>(<br> &self, <br> new: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><T>>, <br> ord: <a class="enum" href="https://doc.rust-lang.org/nightly/core/sync/atomic/enum.Ordering.html" title="enum core::sync::atomic::Ordering">Ordering</a>, <br> _: &'a <a class="struct" href="../../crossbeam/epoch/struct.Guard.html" title="struct crossbeam::epoch::Guard">Guard</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../crossbeam/epoch/struct.Shared.html" title="struct crossbeam::epoch::Shared">Shared</a><'a, T>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#177-180' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Do an atomic swap with a <code>Shared</code> pointer with the given memory ordering.</p>
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</div></div>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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||
<h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl<T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../crossbeam/epoch/struct.Atomic.html" title="struct crossbeam::epoch::Atomic">Atomic</a><T></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#12' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, __arg_0: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#12' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></div><h3 id='impl-Send' class='impl'><span class='in-band'><code>impl<T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../../crossbeam/epoch/struct.Atomic.html" title="struct crossbeam::epoch::Atomic">Atomic</a><T></code><a href='#impl-Send' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#18' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'></div><h3 id='impl-Sync' class='impl'><span class='in-band'><code>impl<T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../../crossbeam/epoch/struct.Atomic.html" title="struct crossbeam::epoch::Atomic">Atomic</a><T></code><a href='#impl-Sync' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/crossbeam/epoch/atomic.rs.html#19' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'></div></section>
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|
||
<h1 class="hidden">Help</h1>
|
||
|
||
<div class="shortcuts">
|
||
<h2>Keyboard Shortcuts</h2>
|
||
|
||
<dl>
|
||
<dt><kbd>?</kbd></dt>
|
||
<dd>Show this help dialog</dd>
|
||
<dt><kbd>S</kbd></dt>
|
||
<dd>Focus the search field</dd>
|
||
<dt><kbd>↑</kbd></dt>
|
||
<dd>Move up in search results</dd>
|
||
<dt><kbd>↓</kbd></dt>
|
||
<dd>Move down in search results</dd>
|
||
<dt><kbd>↹</kbd></dt>
|
||
<dd>Switch tab</dd>
|
||
<dt><kbd>⏎</kbd></dt>
|
||
<dd>Go to active search result</dd>
|
||
<dt><kbd>+</kbd></dt>
|
||
<dd>Expand all sections</dd>
|
||
<dt><kbd>-</kbd></dt>
|
||
<dd>Collapse all sections</dd>
|
||
</dl>
|
||
</div>
|
||
|
||
<div class="infos">
|
||
<h2>Search Tricks</h2>
|
||
|
||
<p>
|
||
Prefix searches with a type followed by a colon (e.g.
|
||
<code>fn:</code>) to restrict the search to a given type.
|
||
</p>
|
||
|
||
<p>
|
||
Accepted types are: <code>fn</code>, <code>mod</code>,
|
||
<code>struct</code>, <code>enum</code>,
|
||
<code>trait</code>, <code>type</code>, <code>macro</code>,
|
||
and <code>const</code>.
|
||
</p>
|
||
|
||
<p>
|
||
Search functions by type signature (e.g.
|
||
<code>vec -> usize</code> or <code>* -> vec</code>)
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</aside>
|
||
|
||
|
||
|
||
<script>
|
||
window.rootPath = "../../";
|
||
window.currentCrate = "crossbeam";
|
||
</script>
|
||
<script src="../../main.js"></script>
|
||
<script defer src="../../search-index.js"></script>
|
||
</body>
|
||
</html> |