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<p class='location'>Trait ToPrimitive</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.to_i64">to_i64</a><a href="#tymethod.to_u64">to_u64</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.to_isize">to_isize</a><a href="#method.to_i8">to_i8</a><a href="#method.to_i16">to_i16</a><a href="#method.to_i32">to_i32</a><a href="#method.to_i128">to_i128</a><a href="#method.to_usize">to_usize</a><a href="#method.to_u8">to_u8</a><a href="#method.to_u16">to_u16</a><a href="#method.to_u32">to_u32</a><a href="#method.to_u128">to_u128</a><a href="#method.to_f32">to_f32</a><a href="#method.to_f64">to_f64</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-ToPrimitive">f32</a><a href="#impl-ToPrimitive">Wrapping<T></a><a href="#impl-ToPrimitive">u32</a><a href="#impl-ToPrimitive">i16</a><a href="#impl-ToPrimitive">u16</a><a href="#impl-ToPrimitive">f64</a><a href="#impl-ToPrimitive">u8</a><a href="#impl-ToPrimitive">i32</a><a href="#impl-ToPrimitive">u128</a><a href="#impl-ToPrimitive">i128</a><a href="#impl-ToPrimitive">isize</a><a href="#impl-ToPrimitive">usize</a><a href="#impl-ToPrimitive">u64</a><a href="#impl-ToPrimitive">i8</a><a href="#impl-ToPrimitive">i64</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../index.html'>num_traits</a>::<wbr><a href='index.html'>cast</a></p><script>window.sidebarCurrent = {name: 'ToPrimitive', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<section id='main' class="content"><h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>num_traits</a>::<wbr><a href='index.html'>cast</a>::<wbr><a class="trait" href=''>ToPrimitive</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../../src/num_traits/cast.rs.html#12-103' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait ToPrimitive {
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fn <a href='#tymethod.to_i64' class='fnname'>to_i64</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>>;
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<div class='item-spacer'></div> fn <a href='#tymethod.to_u64' class='fnname'>to_u64</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>>;
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fn <a href='#method.to_isize' class='fnname'>to_isize</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_i8' class='fnname'>to_i8</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_i16' class='fnname'>to_i16</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_i32' class='fnname'>to_i32</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_i128' class='fnname'>to_i128</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_usize' class='fnname'>to_usize</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_u8' class='fnname'>to_u8</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_u16' class='fnname'>to_u16</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_u32' class='fnname'>to_u32</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_u128' class='fnname'>to_u128</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u128.html">u128</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_f32' class='fnname'>to_f32</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>> { ... }
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<div class='item-spacer'></div> fn <a href='#method.to_f64' class='fnname'>to_f64</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>> { ... }
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}</pre></div><div class='docblock'><p>A generic trait for converting a value to a number.</p>
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</div>
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<h2 id='required-methods' class='small-section-header'>
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Required Methods<a href='#required-methods' class='anchor'></a>
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</h2>
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<div class='methods'>
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<h3 id='tymethod.to_i64' class='method'><span id='to_i64.v' class='invisible'><code>fn <a href='#tymethod.to_i64' class='fnname'>to_i64</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>i64</code>.</p>
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</div><h3 id='tymethod.to_u64' class='method'><span id='to_u64.v' class='invisible'><code>fn <a href='#tymethod.to_u64' class='fnname'>to_u64</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>u64</code>.</p>
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</div></div>
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<h2 id='provided-methods' class='small-section-header'>
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Provided Methods<a href='#provided-methods' class='anchor'></a>
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</h2>
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<div class='methods'>
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<h3 id='method.to_isize' class='method'><span id='to_isize.v' class='invisible'><code>fn <a href='#method.to_isize' class='fnname'>to_isize</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>isize</code>.</p>
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</div><h3 id='method.to_i8' class='method'><span id='to_i8.v' class='invisible'><code>fn <a href='#method.to_i8' class='fnname'>to_i8</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>i8</code>.</p>
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</div><h3 id='method.to_i16' class='method'><span id='to_i16.v' class='invisible'><code>fn <a href='#method.to_i16' class='fnname'>to_i16</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>i16</code>.</p>
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</div><h3 id='method.to_i32' class='method'><span id='to_i32.v' class='invisible'><code>fn <a href='#method.to_i32' class='fnname'>to_i32</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>i32</code>.</p>
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</div><h3 id='method.to_i128' class='method'><span id='to_i128.v' class='invisible'><code>fn <a href='#method.to_i128' class='fnname'>to_i128</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>i128</code>.</p>
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<p>This method is only available with feature <code>i128</code> enabled on Rust >= 1.26.</p>
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<p>The default implementation converts through <code>to_i64()</code>. Types implementing
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this trait should override this method if they can represent a greater range.</p>
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</div><h3 id='method.to_usize' class='method'><span id='to_usize.v' class='invisible'><code>fn <a href='#method.to_usize' class='fnname'>to_usize</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to a <code>usize</code>.</p>
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</div><h3 id='method.to_u8' class='method'><span id='to_u8.v' class='invisible'><code>fn <a href='#method.to_u8' class='fnname'>to_u8</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>u8</code>.</p>
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</div><h3 id='method.to_u16' class='method'><span id='to_u16.v' class='invisible'><code>fn <a href='#method.to_u16' class='fnname'>to_u16</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>u16</code>.</p>
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</div><h3 id='method.to_u32' class='method'><span id='to_u32.v' class='invisible'><code>fn <a href='#method.to_u32' class='fnname'>to_u32</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>u32</code>.</p>
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</div><h3 id='method.to_u128' class='method'><span id='to_u128.v' class='invisible'><code>fn <a href='#method.to_u128' class='fnname'>to_u128</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u128.html">u128</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>u128</code>.</p>
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<p>This method is only available with feature <code>i128</code> enabled on Rust >= 1.26.</p>
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<p>The default implementation converts through <code>to_u64()</code>. Types implementing
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this trait should override this method if they can represent a greater range.</p>
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</div><h3 id='method.to_f32' class='method'><span id='to_f32.v' class='invisible'><code>fn <a href='#method.to_f32' class='fnname'>to_f32</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>f32</code>.</p>
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</div><h3 id='method.to_f64' class='method'><span id='to_f64.v' class='invisible'><code>fn <a href='#method.to_f64' class='fnname'>to_f64</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>></code></span></h3><div class='docblock'><p>Converts the value of <code>self</code> to an <code>f64</code>.</p>
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</div></div>
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<h2 id='foreign-impls' class='small-section-header'>
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Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a>
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</h2>
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<h3 id='impl-ToPrimitive' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../num_traits/cast/trait.ToPrimitive.html" title="trait num_traits::cast::ToPrimitive">ToPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f32.html">f32</a></code><a href='#impl-ToPrimitive' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/num_traits/cast.rs.html#320-345' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><span class='docblock autohide'><div class='impl-items'><h4 id='method.to_isize-1' class="method"><span id='to_isize.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_isize' class='fnname'>to_isize</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/num_traits/cast.rs.html#265-287' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_i8-1' class="method"><span id='to_i8.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_i8' class='fnname'>to_i8</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/num_traits/cast.rs.html#265-287' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_i16-1' class="method"><span id='to_i16.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_i16' class='fnname'>to_i16</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/num_traits/cast.rs.html#265-287' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_i32-1' class="method"><span id='to_i32.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_i32' class='fnname'>to_i32</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/num_traits/cast.rs.html#265-287' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_i64' class="method"><span id='to_i64.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_i64' class='fnname'>to_i64</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/num_traits/cast.rs.html#265-287' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><h4 id='method.to_i128-1' class="method"><span id='to_i128.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.to_i128' class='fnname'>to_i128</a>(&sel
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