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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A generic trait for converting a number to a value."><meta name="keywords" content="rust, rustlang, rust-lang, FromPrimitive"><title>num_traits::cast::FromPrimitive - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><a href='../../num_traits/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Trait FromPrimitive</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.from_i64">from_i64</a><a href="#tymethod.from_u64">from_u64</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.from_usize">from_usize</a><a href="#method.from_isize">from_isize</a><a href="#method.from_i8">from_i8</a><a href="#method.from_i16">from_i16</a><a href="#method.from_i32">from_i32</a><a href="#method.from_i128">from_i128</a><a href="#method.from_u8">from_u8</a><a href="#method.from_u16">from_u16</a><a href="#method.from_u32">from_u32</a><a href="#method.from_u128">from_u128</a><a href="#method.from_f32">from_f32</a><a href="#method.from_f64">from_f64</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-FromPrimitive-for-Wrapping%3CT%3E">Wrapping&lt;T&gt;</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><div id="sidebar-vars" data-name="FromPrimitive" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><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="">FromPrimitive</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">&#x2212;</span>]</a></span><a class="srclink" href="../../src/num_traits/cast.rs.html#411-522" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust trait">pub trait FromPrimitive: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;;
<div class="item-spacer"></div> fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;;
fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
<div class="item-spacer"></div> fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
}</pre></div><div class="docblock"><p>A generic trait for converting a number to a value.</p>
<p>A value can be represented by the target type when it lies within
the range of scalars supported by the target type.
For example, a negative integer cannot be represented by an unsigned
integer type, and an <code>i64</code> with a very high magnitude might not be
convertible to an <code>i32</code>.
On the other hand, conversions with possible precision loss or truncation
are admitted, like an <code>f32</code> with a decimal part to an integer type, or
even a large <code>f64</code> saturating to <code>f32</code> infinity.</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.from_i64" class="method"><code>fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#442" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>i64</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="tymethod.from_u64" class="method"><code>fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#487" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>u64</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div></div><span class="loading-content">Loading content...</span><h2 id="provided-methods" class="small-section-header">Provided methods<a href="#provided-methods" class="anchor"></a></h2><div class="methods"><h3 id="method.from_isize" class="method"><code>fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#415-417" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>isize</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_i8" class="method"><code>fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#422-424" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>i8</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_i16" class="method"><code>fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#429-431" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>i16</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_i32" class="method"><code>fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#436-438" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>i32</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_i128" class="method"><code>fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#453-455" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>i128</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
<p>This method is only available with feature <code>i128</code> enabled on Rust &gt;= 1.26.</p>
<p>The default implementation converts through <code>from_i64()</code>. Types implementing
this trait should override this method if they can represent a greater range.</p>
</div><h3 id="method.from_usize" class="method"><code>fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#460-462" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts a <code>usize</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_u8" class="method"><code>fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#467-469" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>u8</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_u16" class="method"><code>fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#474-476" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>u16</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_u32" class="method"><code>fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#481-483" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>u32</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_u128" class="method"><code>fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#498-500" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts an <code>u128</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
<p>This method is only available with feature <code>i128</code> enabled on Rust &gt;= 1.26.</p>
<p>The default implementation converts through <code>from_u64()</code>. Types implementing
this trait should override this method if they can represent a greater range.</p>
</div><h3 id="method.from_f32" class="method"><code>fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#505-507" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts a <code>f32</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
</div><h3 id="method.from_f64" class="method"><code>fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#516-521" title="goto source code">[src]</a></h3><div class="docblock"><p>Converts a <code>f64</code> to return an optional value of this type. If the
value cannot be represented by this type, then <code>None</code> is returned.</p>
<p>The default implementation tries to convert through <code>from_i64()</code>, and
failing that through <code>from_u64()</code>. Types implementing this trait should
override this method if they can represent a greater range.</p>
</div></div><span class="loading-content">Loading content...</span><h2 id="foreign-impls" class="small-section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor"></a></h2><h3 id="impl-FromPrimitive-for-Wrapping%3CT%3E" class="impl"><code class="in-band">impl&lt;T:&nbsp;<a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a>&gt; <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/wrapping/struct.Wrapping.html" title="struct core::num::wrapping::Wrapping">Wrapping</a>&lt;T&gt;</code><a href="#impl-FromPrimitive-for-Wrapping%3CT%3E" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#652-673" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-1" class="method hidden"><code>fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_i8-1" class="method hidden"><code>fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_i16-1" class="method hidden"><code>fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_i32-1" class="method hidden"><code>fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_i64" class="method hidden"><code>fn <a href="#method.from_i64" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_i128-1" class="method hidden"><code>fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_usize-1" class="method hidden"><code>fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_u8-1" class="method hidden"><code>fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_u16-1" class="method hidden"><code>fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_u32-1" class="method hidden"><code>fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_u64" class="method hidden"><code>fn <a href="#method.from_u64" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_u128-1" class="method hidden"><code>fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_f32-1" class="method hidden"><code>fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4><h4 id="method.from_f64-1" class="method hidden"><code>fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></h4></div><span class="loading-content">Loading content...</span><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><h3 id="impl-FromPrimitive" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for f32</code><a href="#impl-FromPrimitive" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-2" class="method hidden"><code>fn <a href="#method.from_isize-2" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_i8-2" class="method hidden"><code>fn <a href="#method.from_i8-2" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_i16-2" class="method hidden"><code>fn <a href="#method.from_i16-2" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_i32-2" class="method hidden"><code>fn <a href="#method.from_i32-2" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_i64-1" class="method hidden"><code>fn <a href="#method.from_i64-1" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_i128-2" class="method hidden"><code>fn <a href="#method.from_i128-2" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_usize-2" class="method hidden"><code>fn <a href="#method.from_usize-2" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_u8-2" class="method hidden"><code>fn <a href="#method.from_u8-2" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_u16-2" class="method hidden"><code>fn <a href="#method.from_u16-2" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_u32-2" class="method hidden"><code>fn <a href="#method.from_u32-2" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_u64-1" class="method hidden"><code>fn <a href="#method.from_u64-1" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_u128-2" class="method hidden"><code>fn <a href="#method.from_u128-2" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_f32-2" class="method hidden"><code>fn <a href="#method.from_f32-2" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4><h4 id="method.from_f64-2" class="method hidden"><code>fn <a href="#method.from_f64-2" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-1" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for f64</code><a href="#impl-FromPrimitive-1" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-3" class="method hidden"><code>fn <a href="#method.from_isize-3" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_i8-3" class="method hidden"><code>fn <a href="#method.from_i8-3" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_i16-3" class="method hidden"><code>fn <a href="#method.from_i16-3" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_i32-3" class="method hidden"><code>fn <a href="#method.from_i32-3" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_i64-2" class="method hidden"><code>fn <a href="#method.from_i64-2" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_i128-3" class="method hidden"><code>fn <a href="#method.from_i128-3" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_usize-3" class="method hidden"><code>fn <a href="#method.from_usize-3" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_u8-3" class="method hidden"><code>fn <a href="#method.from_u8-3" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_u16-3" class="method hidden"><code>fn <a href="#method.from_u16-3" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_u32-3" class="method hidden"><code>fn <a href="#method.from_u32-3" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_u64-2" class="method hidden"><code>fn <a href="#method.from_u64-2" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_u128-3" class="method hidden"><code>fn <a href="#method.from_u128-3" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_f32-3" class="method hidden"><code>fn <a href="#method.from_f32-3" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4><h4 id="method.from_f64-3" class="method hidden"><code>fn <a href="#method.from_f64-3" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;f64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-2" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for i8</code><a href="#impl-FromPrimitive-2" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-4" class="method hidden"><code>fn <a href="#method.from_isize-4" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_i8-4" class="method hidden"><code>fn <a href="#method.from_i8-4" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_i16-4" class="method hidden"><code>fn <a href="#method.from_i16-4" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_i32-4" class="method hidden"><code>fn <a href="#method.from_i32-4" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_i64-3" class="method hidden"><code>fn <a href="#method.from_i64-3" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_i128-4" class="method hidden"><code>fn <a href="#method.from_i128-4" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_usize-4" class="method hidden"><code>fn <a href="#method.from_usize-4" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_u8-4" class="method hidden"><code>fn <a href="#method.from_u8-4" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_u16-4" class="method hidden"><code>fn <a href="#method.from_u16-4" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_u32-4" class="method hidden"><code>fn <a href="#method.from_u32-4" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_u64-3" class="method hidden"><code>fn <a href="#method.from_u64-3" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_u128-4" class="method hidden"><code>fn <a href="#method.from_u128-4" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_f32-4" class="method hidden"><code>fn <a href="#method.from_f32-4" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4><h4 id="method.from_f64-4" class="method hidden"><code>fn <a href="#method.from_f64-4" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-3" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for i16</code><a href="#impl-FromPrimitive-3" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-5" class="method hidden"><code>fn <a href="#method.from_isize-5" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_i8-5" class="method hidden"><code>fn <a href="#method.from_i8-5" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_i16-5" class="method hidden"><code>fn <a href="#method.from_i16-5" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_i32-5" class="method hidden"><code>fn <a href="#method.from_i32-5" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_i64-4" class="method hidden"><code>fn <a href="#method.from_i64-4" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_i128-5" class="method hidden"><code>fn <a href="#method.from_i128-5" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_usize-5" class="method hidden"><code>fn <a href="#method.from_usize-5" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_u8-5" class="method hidden"><code>fn <a href="#method.from_u8-5" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_u16-5" class="method hidden"><code>fn <a href="#method.from_u16-5" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_u32-5" class="method hidden"><code>fn <a href="#method.from_u32-5" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_u64-4" class="method hidden"><code>fn <a href="#method.from_u64-4" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_u128-5" class="method hidden"><code>fn <a href="#method.from_u128-5" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_f32-5" class="method hidden"><code>fn <a href="#method.from_f32-5" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4><h4 id="method.from_f64-5" class="method hidden"><code>fn <a href="#method.from_f64-5" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-4" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for i32</code><a href="#impl-FromPrimitive-4" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-6" class="method hidden"><code>fn <a href="#method.from_isize-6" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_i8-6" class="method hidden"><code>fn <a href="#method.from_i8-6" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_i16-6" class="method hidden"><code>fn <a href="#method.from_i16-6" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_i32-6" class="method hidden"><code>fn <a href="#method.from_i32-6" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_i64-5" class="method hidden"><code>fn <a href="#method.from_i64-5" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_i128-6" class="method hidden"><code>fn <a href="#method.from_i128-6" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_usize-6" class="method hidden"><code>fn <a href="#method.from_usize-6" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_u8-6" class="method hidden"><code>fn <a href="#method.from_u8-6" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_u16-6" class="method hidden"><code>fn <a href="#method.from_u16-6" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_u32-6" class="method hidden"><code>fn <a href="#method.from_u32-6" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_u64-5" class="method hidden"><code>fn <a href="#method.from_u64-5" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_u128-6" class="method hidden"><code>fn <a href="#method.from_u128-6" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_f32-6" class="method hidden"><code>fn <a href="#method.from_f32-6" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4><h4 id="method.from_f64-6" class="method hidden"><code>fn <a href="#method.from_f64-6" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-5" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for i64</code><a href="#impl-FromPrimitive-5" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-7" class="method hidden"><code>fn <a href="#method.from_isize-7" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_i8-7" class="method hidden"><code>fn <a href="#method.from_i8-7" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_i16-7" class="method hidden"><code>fn <a href="#method.from_i16-7" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_i32-7" class="method hidden"><code>fn <a href="#method.from_i32-7" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_i64-6" class="method hidden"><code>fn <a href="#method.from_i64-6" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_i128-7" class="method hidden"><code>fn <a href="#method.from_i128-7" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_usize-7" class="method hidden"><code>fn <a href="#method.from_usize-7" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_u8-7" class="method hidden"><code>fn <a href="#method.from_u8-7" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_u16-7" class="method hidden"><code>fn <a href="#method.from_u16-7" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_u32-7" class="method hidden"><code>fn <a href="#method.from_u32-7" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_u64-6" class="method hidden"><code>fn <a href="#method.from_u64-6" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_u128-7" class="method hidden"><code>fn <a href="#method.from_u128-7" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_f32-7" class="method hidden"><code>fn <a href="#method.from_f32-7" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4><h4 id="method.from_f64-7" class="method hidden"><code>fn <a href="#method.from_f64-7" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-6" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for i128</code><a href="#impl-FromPrimitive-6" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-8" class="method hidden"><code>fn <a href="#method.from_isize-8" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_i8-8" class="method hidden"><code>fn <a href="#method.from_i8-8" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_i16-8" class="method hidden"><code>fn <a href="#method.from_i16-8" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_i32-8" class="method hidden"><code>fn <a href="#method.from_i32-8" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_i64-7" class="method hidden"><code>fn <a href="#method.from_i64-7" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_i128-8" class="method hidden"><code>fn <a href="#method.from_i128-8" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_usize-8" class="method hidden"><code>fn <a href="#method.from_usize-8" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_u8-8" class="method hidden"><code>fn <a href="#method.from_u8-8" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_u16-8" class="method hidden"><code>fn <a href="#method.from_u16-8" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_u32-8" class="method hidden"><code>fn <a href="#method.from_u32-8" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_u64-7" class="method hidden"><code>fn <a href="#method.from_u64-7" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_u128-8" class="method hidden"><code>fn <a href="#method.from_u128-8" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_f32-8" class="method hidden"><code>fn <a href="#method.from_f32-8" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4><h4 id="method.from_f64-8" class="method hidden"><code>fn <a href="#method.from_f64-8" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;i128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-7" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for isize</code><a href="#impl-FromPrimitive-7" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-9" class="method hidden"><code>fn <a href="#method.from_isize-9" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_i8-9" class="method hidden"><code>fn <a href="#method.from_i8-9" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_i16-9" class="method hidden"><code>fn <a href="#method.from_i16-9" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_i32-9" class="method hidden"><code>fn <a href="#method.from_i32-9" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_i64-8" class="method hidden"><code>fn <a href="#method.from_i64-8" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_i128-9" class="method hidden"><code>fn <a href="#method.from_i128-9" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_usize-9" class="method hidden"><code>fn <a href="#method.from_usize-9" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_u8-9" class="method hidden"><code>fn <a href="#method.from_u8-9" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_u16-9" class="method hidden"><code>fn <a href="#method.from_u16-9" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_u32-9" class="method hidden"><code>fn <a href="#method.from_u32-9" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_u64-8" class="method hidden"><code>fn <a href="#method.from_u64-8" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_u128-9" class="method hidden"><code>fn <a href="#method.from_u128-9" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_f32-9" class="method hidden"><code>fn <a href="#method.from_f32-9" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4><h4 id="method.from_f64-9" class="method hidden"><code>fn <a href="#method.from_f64-9" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;isize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-8" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for u8</code><a href="#impl-FromPrimitive-8" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-10" class="method hidden"><code>fn <a href="#method.from_isize-10" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_i8-10" class="method hidden"><code>fn <a href="#method.from_i8-10" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_i16-10" class="method hidden"><code>fn <a href="#method.from_i16-10" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_i32-10" class="method hidden"><code>fn <a href="#method.from_i32-10" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_i64-9" class="method hidden"><code>fn <a href="#method.from_i64-9" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_i128-10" class="method hidden"><code>fn <a href="#method.from_i128-10" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_usize-10" class="method hidden"><code>fn <a href="#method.from_usize-10" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_u8-10" class="method hidden"><code>fn <a href="#method.from_u8-10" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_u16-10" class="method hidden"><code>fn <a href="#method.from_u16-10" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_u32-10" class="method hidden"><code>fn <a href="#method.from_u32-10" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_u64-9" class="method hidden"><code>fn <a href="#method.from_u64-9" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_u128-10" class="method hidden"><code>fn <a href="#method.from_u128-10" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_f32-10" class="method hidden"><code>fn <a href="#method.from_f32-10" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4><h4 id="method.from_f64-10" class="method hidden"><code>fn <a href="#method.from_f64-10" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u8&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-9" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for u16</code><a href="#impl-FromPrimitive-9" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-11" class="method hidden"><code>fn <a href="#method.from_isize-11" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_i8-11" class="method hidden"><code>fn <a href="#method.from_i8-11" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_i16-11" class="method hidden"><code>fn <a href="#method.from_i16-11" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_i32-11" class="method hidden"><code>fn <a href="#method.from_i32-11" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_i64-10" class="method hidden"><code>fn <a href="#method.from_i64-10" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_i128-11" class="method hidden"><code>fn <a href="#method.from_i128-11" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_usize-11" class="method hidden"><code>fn <a href="#method.from_usize-11" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_u8-11" class="method hidden"><code>fn <a href="#method.from_u8-11" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_u16-11" class="method hidden"><code>fn <a href="#method.from_u16-11" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_u32-11" class="method hidden"><code>fn <a href="#method.from_u32-11" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_u64-10" class="method hidden"><code>fn <a href="#method.from_u64-10" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_u128-11" class="method hidden"><code>fn <a href="#method.from_u128-11" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_f32-11" class="method hidden"><code>fn <a href="#method.from_f32-11" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4><h4 id="method.from_f64-11" class="method hidden"><code>fn <a href="#method.from_f64-11" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u16&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-10" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for u32</code><a href="#impl-FromPrimitive-10" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-12" class="method hidden"><code>fn <a href="#method.from_isize-12" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_i8-12" class="method hidden"><code>fn <a href="#method.from_i8-12" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_i16-12" class="method hidden"><code>fn <a href="#method.from_i16-12" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_i32-12" class="method hidden"><code>fn <a href="#method.from_i32-12" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_i64-11" class="method hidden"><code>fn <a href="#method.from_i64-11" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_i128-12" class="method hidden"><code>fn <a href="#method.from_i128-12" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_usize-12" class="method hidden"><code>fn <a href="#method.from_usize-12" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_u8-12" class="method hidden"><code>fn <a href="#method.from_u8-12" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_u16-12" class="method hidden"><code>fn <a href="#method.from_u16-12" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_u32-12" class="method hidden"><code>fn <a href="#method.from_u32-12" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_u64-11" class="method hidden"><code>fn <a href="#method.from_u64-11" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_u128-12" class="method hidden"><code>fn <a href="#method.from_u128-12" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_f32-12" class="method hidden"><code>fn <a href="#method.from_f32-12" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4><h4 id="method.from_f64-12" class="method hidden"><code>fn <a href="#method.from_f64-12" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u32&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-11" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for u64</code><a href="#impl-FromPrimitive-11" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-13" class="method hidden"><code>fn <a href="#method.from_isize-13" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_i8-13" class="method hidden"><code>fn <a href="#method.from_i8-13" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_i16-13" class="method hidden"><code>fn <a href="#method.from_i16-13" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_i32-13" class="method hidden"><code>fn <a href="#method.from_i32-13" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_i64-12" class="method hidden"><code>fn <a href="#method.from_i64-12" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_i128-13" class="method hidden"><code>fn <a href="#method.from_i128-13" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_usize-13" class="method hidden"><code>fn <a href="#method.from_usize-13" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_u8-13" class="method hidden"><code>fn <a href="#method.from_u8-13" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_u16-13" class="method hidden"><code>fn <a href="#method.from_u16-13" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_u32-13" class="method hidden"><code>fn <a href="#method.from_u32-13" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_u64-12" class="method hidden"><code>fn <a href="#method.from_u64-12" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_u128-13" class="method hidden"><code>fn <a href="#method.from_u128-13" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_f32-13" class="method hidden"><code>fn <a href="#method.from_f32-13" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4><h4 id="method.from_f64-13" class="method hidden"><code>fn <a href="#method.from_f64-13" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u64&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-12" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for u128</code><a href="#impl-FromPrimitive-12" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-14" class="method hidden"><code>fn <a href="#method.from_isize-14" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_i8-14" class="method hidden"><code>fn <a href="#method.from_i8-14" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_i16-14" class="method hidden"><code>fn <a href="#method.from_i16-14" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_i32-14" class="method hidden"><code>fn <a href="#method.from_i32-14" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_i64-13" class="method hidden"><code>fn <a href="#method.from_i64-13" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_i128-14" class="method hidden"><code>fn <a href="#method.from_i128-14" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_usize-14" class="method hidden"><code>fn <a href="#method.from_usize-14" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_u8-14" class="method hidden"><code>fn <a href="#method.from_u8-14" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_u16-14" class="method hidden"><code>fn <a href="#method.from_u16-14" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_u32-14" class="method hidden"><code>fn <a href="#method.from_u32-14" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_u64-13" class="method hidden"><code>fn <a href="#method.from_u64-13" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_u128-14" class="method hidden"><code>fn <a href="#method.from_u128-14" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_f32-14" class="method hidden"><code>fn <a href="#method.from_f32-14" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4><h4 id="method.from_f64-14" class="method hidden"><code>fn <a href="#method.from_f64-14" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;u128&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></h4></div><h3 id="impl-FromPrimitive-13" class="impl"><code class="in-band">impl <a class="trait" href="../../num_traits/cast/trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for usize</code><a href="#impl-FromPrimitive-13" class="anchor"></a><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_isize-15" class="method hidden"><code>fn <a href="#method.from_isize-15" class="fnname">from_isize</a>(n: isize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_i8-15" class="method hidden"><code>fn <a href="#method.from_i8-15" class="fnname">from_i8</a>(n: i8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_i16-15" class="method hidden"><code>fn <a href="#method.from_i16-15" class="fnname">from_i16</a>(n: i16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_i32-15" class="method hidden"><code>fn <a href="#method.from_i32-15" class="fnname">from_i32</a>(n: i32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_i64-14" class="method hidden"><code>fn <a href="#method.from_i64-14" class="fnname">from_i64</a>(n: i64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_i128-15" class="method hidden"><code>fn <a href="#method.from_i128-15" class="fnname">from_i128</a>(n: i128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_usize-15" class="method hidden"><code>fn <a href="#method.from_usize-15" class="fnname">from_usize</a>(n: usize) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_u8-15" class="method hidden"><code>fn <a href="#method.from_u8-15" class="fnname">from_u8</a>(n: u8) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_u16-15" class="method hidden"><code>fn <a href="#method.from_u16-15" class="fnname">from_u16</a>(n: u16) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_u32-15" class="method hidden"><code>fn <a href="#method.from_u32-15" class="fnname">from_u32</a>(n: u32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_u64-14" class="method hidden"><code>fn <a href="#method.from_u64-14" class="fnname">from_u64</a>(n: u64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_u128-15" class="method hidden"><code>fn <a href="#method.from_u128-15" class="fnname">from_u128</a>(n: u128) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_f32-15" class="method hidden"><code>fn <a href="#method.from_f32-15" class="fnname">from_f32</a>(n: f32) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4><h4 id="method.from_f64-15" class="method hidden"><code>fn <a href="#method.from_f64-15" class="fnname">from_f64</a>(n: f64) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;usize&gt;</code><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></h4></div></div><span class="loading-content">Loading content...</span><script type="text/javascript" src="../../implementors/num_traits/cast/trait.FromPrimitive.js" async></script></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="num_traits"></div>
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