evan/ludum-dare-50
Archived
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
This repository has been archived on 2022-04-04. You can view files and clone it, but cannot push or open issues or pull requests.
ludum-dare-50/rustdoc/num_traits/cast/trait.FromPrimitive.html

66 lines
169 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!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>FromPrimitive in num_traits::cast - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><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="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.js"></script><script defer src="../../main.js"></script>
<noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">&#9776;</div><a class="sidebar-logo" href="../../num_traits/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.png" alt="logo"></div>
</a><h2 class="location">Trait FromPrimitive</h2><div class="sidebar-elems"><div class="block items"><h3 class="sidebar-title"><a href="#required-methods">Required Methods</a></h3><div class="sidebar-links"><a href="#tymethod.from_i64">from_i64</a><a href="#tymethod.from_u64">from_u64</a></div><h3 class="sidebar-title"><a href="#provided-methods">Provided Methods</a></h3><div class="sidebar-links"><a href="#method.from_f32">from_f32</a><a href="#method.from_f64">from_f64</a><a href="#method.from_i128">from_i128</a><a href="#method.from_i16">from_i16</a><a href="#method.from_i32">from_i32</a><a href="#method.from_i8">from_i8</a><a href="#method.from_isize">from_isize</a><a href="#method.from_u128">from_u128</a><a href="#method.from_u16">from_u16</a><a href="#method.from_u32">from_u32</a><a href="#method.from_u8">from_u8</a><a href="#method.from_usize">from_usize</a></div><h3 class="sidebar-title"><a href="#foreign-impls">Implementations on Foreign Types</a></h3><div class="sidebar-links"><a href="#impl-FromPrimitive-for-Wrapping%3CT%3E">Wrapping&lt;T&gt;</a><a href="#impl-FromPrimitive-for-f32">f32</a><a href="#impl-FromPrimitive-for-f64">f64</a><a href="#impl-FromPrimitive-for-i128">i128</a><a href="#impl-FromPrimitive-for-i16">i16</a><a href="#impl-FromPrimitive-for-i32">i32</a><a href="#impl-FromPrimitive-for-i64">i64</a><a href="#impl-FromPrimitive-for-i8">i8</a><a href="#impl-FromPrimitive-for-isize">isize</a><a href="#impl-FromPrimitive-for-u128">u128</a><a href="#impl-FromPrimitive-for-u16">u16</a><a href="#impl-FromPrimitive-for-u32">u32</a><a href="#impl-FromPrimitive-for-u64">u64</a><a href="#impl-FromPrimitive-for-u8">u8</a><a href="#impl-FromPrimitive-for-usize">usize</a></div><h3 class="sidebar-title"><a href="#implementors">Implementors</a></h3></div><h2 class="location">Other items in<br><a href="../index.html">num_traits</a>::<wbr><a href="index.html">cast</a></h2><div id="sidebar-vars" data-name="FromPrimitive" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../num_traits/index.html"><img class="rust-logo" src="../../rust-logo.png" alt="logo"></a><nav class="sub"><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><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" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../wheel.svg"></a></div></form></nav></div><section id="main-content" 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><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></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 item-decl"><pre class="rust trait"><code>pub trait FromPrimitive: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
<details class="rustdoc-toggle type-contents-toggle"><summary class="hideme"><span>Show 14 methods</span></summary> fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/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: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt; { ... }
</details>}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><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></details><h2 id="required-methods" class="small-section-header">Required methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="tymethod.from_i64" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#442" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="tymethod.from_u64" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#487" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details></div><h2 id="provided-methods" class="small-section-header">Provided methods<a href="#provided-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="method.from_isize" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#415-417" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_i8" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#422-424" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_i16" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#429-431" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_i32" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#436-438" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_i128" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#453-455" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_usize" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#460-462" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_u8" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#467-469" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_u16" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#474-476" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_u32" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#481-483" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_u128" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#498-500" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_f32" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#505-507" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details><details class="rustdoc-toggle" open><summary><div id="method.from_f64" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#516-521" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></summary><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></details></div><h2 id="foreign-impls" class="small-section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor"></a></h2><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-isize" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-isize" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_isize-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_i8-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_i8-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_i16-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_i16-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_i32-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_i32-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_i64" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_i64" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_i128-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_i128-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_usize-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_usize-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_u8-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_u8-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_u16-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_u16-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_u32-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_u32-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_u64" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_u64" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_u128-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_u128-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_f32-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_f32-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div><div id="method.from_f64-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#592" title="goto source code">[src]</a></div><a href="#method.from_f64-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-i8" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-i8" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_isize-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_i8-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_i8-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_i16-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_i16-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_i32-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_i32-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_i64-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_i64-1" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_i128-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_i128-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_usize-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_usize-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_u8-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_u8-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_u16-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_u16-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_u32-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_u32-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_u64-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_u64-1" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_u128-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_u128-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_f32-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_f32-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div><div id="method.from_f64-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#593" title="goto source code">[src]</a></div><a href="#method.from_f64-2" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-i16" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-i16" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_isize-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_i8-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_i8-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_i16-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_i16-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_i32-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_i32-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_i64-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_i64-2" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_i128-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_i128-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_usize-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_usize-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_u8-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_u8-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_u16-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_u16-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_u32-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_u32-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_u64-2" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_u64-2" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_u128-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_u128-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_f32-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_f32-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div><div id="method.from_f64-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#594" title="goto source code">[src]</a></div><a href="#method.from_f64-3" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-i32" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-i32" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_isize-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_i8-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_i8-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_i16-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_i16-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_i32-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_i32-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_i64-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_i64-3" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_i128-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_i128-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_usize-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_usize-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_u8-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_u8-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_u16-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_u16-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_u32-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_u32-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_u64-3" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_u64-3" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_u128-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_u128-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_f32-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_f32-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div><div id="method.from_f64-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#595" title="goto source code">[src]</a></div><a href="#method.from_f64-4" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-i64" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-i64" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_isize-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_i8-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_i8-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_i16-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_i16-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_i32-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_i32-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_i64-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_i64-4" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_i128-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_i128-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_usize-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_usize-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_u8-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_u8-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_u16-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_u16-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_u32-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_u32-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_u64-4" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_u64-4" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_u128-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_u128-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_f32-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_f32-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div><div id="method.from_f64-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#596" title="goto source code">[src]</a></div><a href="#method.from_f64-5" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-i128" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-i128" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_isize-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_i8-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_i8-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_i16-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_i16-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_i32-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_i32-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_i64-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_i64-5" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_i128-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_i128-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_usize-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_usize-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_u8-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_u8-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_u16-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_u16-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_u32-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_u32-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_u64-5" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_u64-5" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_u128-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_u128-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_f32-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_f32-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div><div id="method.from_f64-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#598" title="goto source code">[src]</a></div><a href="#method.from_f64-6" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-usize" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-usize" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_isize-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_i8-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_i8-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_i16-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_i16-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_i32-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_i32-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_i64-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_i64-6" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_i128-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_i128-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_usize-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_usize-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_u8-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_u8-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_u16-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_u16-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_u32-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_u32-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_u64-6" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_u64-6" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_u128-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_u128-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_f32-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_f32-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div><div id="method.from_f64-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#599" title="goto source code">[src]</a></div><a href="#method.from_f64-7" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-u8" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-u8" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_isize-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_i8-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_i8-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_i16-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_i16-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_i32-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_i32-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_i64-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_i64-7" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_i128-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_i128-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_usize-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_usize-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_u8-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_u8-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_u16-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_u16-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_u32-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_u32-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_u64-7" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_u64-7" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_u128-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_u128-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_f32-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_f32-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div><div id="method.from_f64-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#600" title="goto source code">[src]</a></div><a href="#method.from_f64-8" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-u16" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-u16" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_isize-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_i8-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_i8-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_i16-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_i16-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_i32-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_i32-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_i64-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_i64-8" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_i128-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_i128-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_usize-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_usize-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_u8-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_u8-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_u16-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_u16-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_u32-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_u32-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_u64-8" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_u64-8" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_u128-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_u128-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_f32-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_f32-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div><div id="method.from_f64-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#601" title="goto source code">[src]</a></div><a href="#method.from_f64-9" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-u32" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-u32" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_isize-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_i8-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_i8-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_i16-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_i16-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_i32-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_i32-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_i64-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_i64-9" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_i128-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_i128-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_usize-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_usize-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_u8-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_u8-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_u16-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_u16-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_u32-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_u32-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_u64-9" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_u64-9" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_u128-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_u128-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_f32-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_f32-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div><div id="method.from_f64-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#602" title="goto source code">[src]</a></div><a href="#method.from_f64-10" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-u64" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-u64" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_isize-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_i8-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_i8-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_i16-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_i16-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_i32-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_i32-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_i64-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_i64-10" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_i128-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_i128-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_usize-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_usize-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_u8-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_u8-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_u16-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_u16-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_u32-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_u32-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_u64-10" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_u64-10" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_u128-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_u128-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_f32-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_f32-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div><div id="method.from_f64-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#603" title="goto source code">[src]</a></div><a href="#method.from_f64-11" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-u128" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-u128" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_isize-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_i8-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_i8-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_i16-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_i16-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_i32-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_i32-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_i64-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_i64-11" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_i128-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_i128-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_usize-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_usize-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_u8-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_u8-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_u16-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_u16-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_u32-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_u32-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_u64-11" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_u64-11" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_u128-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_u128-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_f32-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_f32-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div><div id="method.from_f64-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#605" title="goto source code">[src]</a></div><a href="#method.from_f64-12" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-f32" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-f32" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_isize-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_i8-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_i8-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_i16-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_i16-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_i32-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_i32-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_i64-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_i64-12" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_i128-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_i128-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_usize-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_usize-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_u8-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_u8-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_u16-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_u16-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_u32-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_u32-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_u64-12" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_u64-12" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_u128-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_u128-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_f32-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_f32-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div><div id="method.from_f64-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#606" title="goto source code">[src]</a></div><a href="#method.from_f64-13" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-f64" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-f64" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a></h3></div></summary><div class="impl-items"><div id="method.from_isize-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_isize-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_i8-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_i8-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_i16-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_i16-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_i32-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_i32-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_i64-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_i64-13" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_i128-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_i128-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_usize-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_usize-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_u8-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_u8-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_u16-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_u16-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_u32-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_u32-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_u64-13" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_u64-13" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_u128-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_u128-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_f32-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_f32-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div><div id="method.from_f64-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#607" title="goto source code">[src]</a></div><a href="#method.from_f64-14" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>&gt;</h4></div></div></details><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-FromPrimitive-for-Wrapping%3CT%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#652-673" title="goto source code">[src]</a></div><a href="#impl-FromPrimitive-for-Wrapping%3CT%3E" class="anchor"></a><h3 class="code-header in-band">impl&lt;T:&nbsp;<a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a>&gt; <a class="trait" href="trait.FromPrimitive.html" title="trait num_traits::cast::FromPrimitive">FromPrimitive</a> for <a class="struct" href="https://doc.rust-lang.org/1.59.0/core/num/wrapping/struct.Wrapping.html" title="struct core::num::wrapping::Wrapping">Wrapping</a>&lt;T&gt;</h3></div></summary><div class="impl-items"><div id="method.from_isize-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_isize-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_isize" class="fnname">from_isize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.isize.html">isize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_i8-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_i8-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i8" class="fnname">from_i8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i8.html">i8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_i16-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_i16-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i16" class="fnname">from_i16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i16.html">i16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_i32-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_i32-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i32" class="fnname">from_i32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i32.html">i32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_i64-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_i64-14" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_i64" class="fnname">from_i64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i64.html">i64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_i128-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_i128-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_i128" class="fnname">from_i128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.i128.html">i128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_usize-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_usize-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_usize" class="fnname">from_usize</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_u8-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_u8-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u8" class="fnname">from_u8</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u8.html">u8</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_u16-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_u16-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u16" class="fnname">from_u16</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u16.html">u16</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_u32-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_u32-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u32" class="fnname">from_u32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_u64-14" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_u64-14" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.from_u64" class="fnname">from_u64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u64.html">u64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_u128-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_u128-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_u128" class="fnname">from_u128</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.u128.html">u128</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_f32-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_f32-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f32" class="fnname">from_f32</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f32.html">f32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div><div id="method.from_f64-15" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/num_traits/cast.rs.html#653-672" title="goto source code">[src]</a></div><a href="#method.from_f64-15" class="anchor"></a><h4 class="code-header">fn <a href="#method.from_f64" class="fnname">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/core/primitive.f64.html">f64</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</h4></div></div></details><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"></div><script type="text/javascript" src="../../implementors/num_traits/cast/trait.FromPrimitive.js" async></script></section><section id="search" class="content hidden"></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="num_traits" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.59.0 (9d1b2106e 2022-02-23)" ></div>
</body></html>
Reference in New Issue View Git Blame Copy Permalink