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<p class='location'>Trait Signed</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.abs">abs</a><a href="#tymethod.abs_sub">abs_sub</a><a href="#tymethod.signum">signum</a><a href="#tymethod.is_positive">is_positive</a><a href="#tymethod.is_negative">is_negative</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-Signed">i16</a><a href="#impl-Signed">i64</a><a href="#impl-Signed">Wrapping<T></a><a href="#impl-Signed">i32</a><a href="#impl-Signed">f32</a><a href="#impl-Signed">f64</a><a href="#impl-Signed">i8</a><a href="#impl-Signed">isize</a><a href="#impl-Signed">Ratio<T></a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>num</a></p><script>window.sidebarCurrent = {name: 'Signed', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>num</a>::<wbr><a class="trait" href=''>Signed</a></span><span class='out-of-band'><span id='render-detail'>
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
[<span class='inner'>−</span>]
</a>
</span><a class='srclink' href='../src/num_traits/sign.rs.html#8-42' title='goto source code'>[src]</a></span></h1>
<pre class='rust trait'>pub trait Signed: <a class="trait" href="../num/trait.Num.html" title="trait num::Num">Num</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html" title="trait core::ops::arith::Neg">Neg</a><Output = Self> {
fn <a href='#tymethod.abs' class='fnname'>abs</a>(&self) -> Self;
<div class='item-spacer'></div> fn <a href='#tymethod.abs_sub' class='fnname'>abs_sub</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self) -> Self;
<div class='item-spacer'></div> fn <a href='#tymethod.signum' class='fnname'>signum</a>(&self) -> Self;
<div class='item-spacer'></div> fn <a href='#tymethod.is_positive' class='fnname'>is_positive</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
<div class='item-spacer'></div> fn <a href='#tymethod.is_negative' class='fnname'>is_negative</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
}</pre><div class='docblock'><p>Useful functions for signed numbers (i.e. numbers that can be negative).</p>
</div>
<h2 id='required-methods' class='small-section-header'>
Required Methods<a href='#required-methods' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='tymethod.abs' class='method'><span id='abs.v' class='invisible'><code>fn <a href='#tymethod.abs' class='fnname'>abs</a>(&self) -> Self</code></span></h3><div class='docblock'><p>Computes the absolute value.</p>
<p>For <code>f32</code> and <code>f64</code>, <code>NaN</code> will be returned if the number is <code>NaN</code>.</p>
<p>For signed integers, <code>::MIN</code> will be returned if the number is <code>::MIN</code>.</p>
</div><h3 id='tymethod.abs_sub' class='method'><span id='abs_sub.v' class='invisible'><code>fn <a href='#tymethod.abs_sub' class='fnname'>abs_sub</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self) -> Self</code></span></h3><div class='docblock'><p>The positive difference of two numbers.</p>
<p>Returns <code>zero</code> if the number is less than or equal to <code>other</code>, otherwise the difference
between <code>self</code> and <code>other</code> is returned.</p>
</div><h3 id='tymethod.signum' class='method'><span id='signum.v' class='invisible'><code>fn <a href='#tymethod.signum' class='fnname'>signum</a>(&self) -> Self</code></span></h3><div class='docblock'><p>Returns the sign of the number.</p>
<p>For <code>f32</code> and <code>f64</code>:</p>
<ul>
<li><code>1.0</code> if the number is positive, <code>+0.0</code> or <code>INFINITY</code></li>
<li><code>-1.0</code> if the number is negative, <code>-0.0</code> or <code>NEG_INFINITY</code></li>
<li><code>NaN</code> if the number is <code>NaN</code></li>
</ul>
<p>For signed integers:</p>
<ul>
<li><code>0</code> if the number is zero</li>
<li><code>1</code> if the number is positive</li>
<li><code>-1</code> if the number is negative</li>
</ul>
</div><h3 id='tymethod.is_positive' class='method'><span id='is_positive.v' class='invisible'><code>fn <a href='#tymethod.is_positive' class='fnname'>is_positive</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns true if the number is positive and false if the number is zero or negative.</p>
</div><h3 id='tymethod.is_negative' class='method'><span id='is_negative.v' class='invisible'><code>fn <a href='#tymethod.is_negative' class='fnname'>is_negative</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><div class='docblock'><p>Returns true if the number is negative and false if the number is zero or positive.</p>
</div></div>
<h2 id='foreign-impls' class='small-section-header'>
Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a>
</h2>
<h3 id='impl-Signed' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a></code><a href='#impl-Signed' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#46-71' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs' class="method"><span id='abs.v-1' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#48-50' title='goto source code'>[src]</a></span></h4>
<h4 id='method.abs_sub' class="method"><span id='abs_sub.v-1' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#53-55' title='goto source code'>[src]</a></span></h4>
<h4 id='method.signum' class="method"><span id='signum.v-1' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#58-64' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_positive' class="method"><span id='is_positive.v-1' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#67' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_negative' class="method"><span id='is_negative.v-1' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#70' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-Signed-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code><a href='#impl-Signed-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#46-71' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-1' class="method"><span id='abs.v-2' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#48-50' title='goto source code'>[src]</a></span></h4>
<h4 id='method.abs_sub-1' class="method"><span id='abs_sub.v-2' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#53-55' title='goto source code'>[src]</a></span></h4>
<h4 id='method.signum-1' class="method"><span id='signum.v-2' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#58-64' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_positive-1' class="method"><span id='is_positive.v-2' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#67' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_negative-1' class="method"><span id='is_negative.v-2' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#70' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-Signed-2' class='impl'><span class='in-band'><code>impl<T> <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a>,<br> <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T>: <a class="trait" href="../num/trait.Num.html" title="trait num::Num">Num</a>,<br> <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html" title="trait core::ops::arith::Neg">Neg</a>,<br> <<a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T> as <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html" title="trait core::ops::arith::Neg">Neg</a>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Neg.html#associatedtype.Output" title="type core::ops::arith::Neg::Output">Output</a> == <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T>, </span></code><a href='#impl-Signed-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#77-99' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-2' class="method"><span id='abs.v-3' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#80-82' title='goto source code'>[src]</a></span></h4>
<h4 id='method.abs_sub-2' class="method"><span id='abs_sub.v-3' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T>) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#85-87' title='goto source code'>[src]</a></span></h4>
<h4 id='method.signum-2' class="method"><span id='signum.v-3' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/struct.Wrapping.html" title="struct core::num::Wrapping">Wrapping</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#90-92' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_positive-2' class="method"><span id='is_positive.v-3' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#95' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_negative-2' class="method"><span id='is_negative.v-3' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#98' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-Signed-3' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code><a href='#impl-Signed-3' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#46-71' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-3' class="method"><span id='abs.v-4' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#48-50' title='goto source code'>[src]</a></span></h4>
<h4 id='method.abs_sub-3' class="method"><span id='abs_sub.v-4' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#53-55' title='goto source code'>[src]</a></span></h4>
<h4 id='method.signum-3' class="method"><span id='signum.v-4' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#58-64' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_positive-3' class="method"><span id='is_positive.v-4' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#67' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_negative-3' class="method"><span id='is_negative.v-4' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#70' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-Signed-4' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a href='#impl-Signed-4' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#103-135' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-4' class="method"><span id='abs.v-5' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#106-108' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Computes the absolute value. Returns <code>NAN</code> if the number is <code>NAN</code>.</p>
</div><h4 id='method.abs_sub-4' class="method"><span id='abs_sub.v-5' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#114-116' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>The positive difference of two numbers. Returns <code>0.0</code> if the number is
less than or equal to <code>other</code>, otherwise the difference between<code>self</code>
and <code>other</code> is returned.</p>
</div><h4 id='method.signum-4' class="method"><span id='signum.v-5' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#124-126' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><h1 id="returns" class="section-header"><a href="#returns">Returns</a></h1>
<ul>
<li><code>1.0</code> if the number is positive, <code>+0.0</code> or <code>INFINITY</code></li>
<li><code>-1.0</code> if the number is negative, <code>-0.0</code> or <code>NEG_INFINITY</code></li>
<li><code>NAN</code> if the number is NaN</li>
</ul>
</div><h4 id='method.is_positive-4' class="method"><span id='is_positive.v-5' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#130' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the number is positive, including <code>+0.0</code> and <code>INFINITY</code></p>
</div><h4 id='method.is_negative-4' class="method"><span id='is_negative.v-5' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#134' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the number is negative, including <code>-0.0</code> and <code>NEG_INFINITY</code></p>
</div></div></span><h3 id='impl-Signed-5' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code><a href='#impl-Signed-5' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#103-135' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-5' class="method"><span id='abs.v-6' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#106-108' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Computes the absolute value. Returns <code>NAN</code> if the number is <code>NAN</code>.</p>
</div><h4 id='method.abs_sub-5' class="method"><span id='abs_sub.v-6' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#114-116' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>The positive difference of two numbers. Returns <code>0.0</code> if the number is
less than or equal to <code>other</code>, otherwise the difference between<code>self</code>
and <code>other</code> is returned.</p>
</div><h4 id='method.signum-5' class="method"><span id='signum.v-6' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#124-126' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><h1 id="returns-1" class="section-header"><a href="#returns-1">Returns</a></h1>
<ul>
<li><code>1.0</code> if the number is positive, <code>+0.0</code> or <code>INFINITY</code></li>
<li><code>-1.0</code> if the number is negative, <code>-0.0</code> or <code>NEG_INFINITY</code></li>
<li><code>NAN</code> if the number is NaN</li>
</ul>
</div><h4 id='method.is_positive-5' class="method"><span id='is_positive.v-6' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#130' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the number is positive, including <code>+0.0</code> and <code>INFINITY</code></p>
</div><h4 id='method.is_negative-5' class="method"><span id='is_negative.v-6' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#134' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the number is negative, including <code>-0.0</code> and <code>NEG_INFINITY</code></p>
</div></div></span><h3 id='impl-Signed-6' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a></code><a href='#impl-Signed-6' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#46-71' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-6' class="method"><span id='abs.v-7' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#48-50' title='goto source code'>[src]</a></span></h4>
<h4 id='method.abs_sub-6' class="method"><span id='abs_sub.v-7' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#53-55' title='goto source code'>[src]</a></span></h4>
<h4 id='method.signum-6' class="method"><span id='signum.v-7' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#58-64' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_positive-6' class="method"><span id='is_positive.v-7' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#67' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_negative-6' class="method"><span id='is_negative.v-7' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#70' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-Signed-7' class='impl'><span class='in-band'><code>impl <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a></code><a href='#impl-Signed-7' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#46-71' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-7' class="method"><span id='abs.v-8' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#48-50' title='goto source code'>[src]</a></span></h4>
<h4 id='method.abs_sub-7' class="method"><span id='abs_sub.v-8' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#53-55' title='goto source code'>[src]</a></span></h4>
<h4 id='method.signum-7' class="method"><span id='signum.v-8' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_traits/sign.rs.html#58-64' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_positive-7' class="method"><span id='is_positive.v-8' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_traits/sign.rs.html#67' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_negative-7' class="method"><span id='is_negative.v-8' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_traits/sign.rs.html#70' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-Signed-8' class='impl'><span class='in-band'><code>impl<T> <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a> for <a class="struct" href="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="../num/trait.Integer.html" title="trait num::Integer">Integer</a> + <a class="trait" href="../num/trait.Signed.html" title="trait num::Signed">Signed</a>, </span></code><a href='#impl-Signed-8' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_rational/lib.rs.html#766-807' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.abs-8' class="method"><span id='abs.v-9' class='invisible'><code>fn <a href='#method.abs' class='fnname'>abs</a>(&self) -> <a class="struct" href="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_rational/lib.rs.html#768-774' title='goto source code'>[src]</a></span></h4>
<h4 id='method.abs_sub-8' class="method"><span id='abs_sub.v-9' class='invisible'><code>fn <a href='#method.abs_sub' class='fnname'>abs_sub</a>(&self, other: &<a class="struct" href="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T>) -> <a class="struct" href="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_rational/lib.rs.html#777-783' title='goto source code'>[src]</a></span></h4>
<h4 id='method.signum-8' class="method"><span id='signum.v-9' class='invisible'><code>fn <a href='#method.signum' class='fnname'>signum</a>(&self) -> <a class="struct" href="../num_rational/struct.Ratio.html" title="struct num_rational::Ratio">Ratio</a><T></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/num_rational/lib.rs.html#786-794' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_positive-8' class="method"><span id='is_positive.v-9' class='invisible'><code>fn <a href='#method.is_positive' class='fnname'>is_positive</a>(&self) -> <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/num_rational/lib.rs.html#797-800' title='goto source code'>[src]</a></span></h4>
<h4 id='method.is_negative-8' class="method"><span id='is_negative.v-9' class='invisible'><code>fn <a href='#method.is_negative' class='fnname'>is_negative</a>(&self) -> <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/num_rational/lib.rs.html#803-806' title='goto source code'>[src]</a></span></h4>
</div></span>
<h2 id='implementors' class='small-section-header'>
Implementors<a href='#implementors' class='anchor'></a>
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<li><div class='out-of-band'><a class='srclink' href='../src/num_bigint/bigint.rs.html#268-304' title='goto source code'>[src]</a></div><code>impl Signed for <a class="struct" href="../num/struct.BigInt.html" title="struct num::BigInt">BigInt</a></code></li>
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