176 lines
7.9 KiB
HTML
176 lines
7.9 KiB
HTML
|
<!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="API documentation for the Rust `ryu` crate.">
|
|||
|
|
<meta name="keywords" content="rust, rustlang, rust-lang, ryu">
|
|||
|
|
|
|||
|
|
<title>ryu - Rust</title>
|
|||
|
|
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../normalize.css">
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle">
|
|||
|
|
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../dark.css">
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../main.css" id="themeStyle">
|
|||
|
|
<script src="../storage.js"></script>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</head>
|
|||
|
|
<body class="rustdoc mod">
|
|||
|
|
<!--[if lte IE 8]>
|
|||
|
|
<div class="warning">
|
|||
|
|
This old browser is unsupported and will most likely display funky
|
|||
|
|
things.
|
|||
|
|
</div>
|
|||
|
|
<![endif]-->
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<nav class="sidebar">
|
|||
|
|
<div class="sidebar-menu">☰</div>
|
|||
|
|
|
|||
|
|
<p class='location'>Crate ryu</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#modules">Modules</a></li><li><a href="#structs">Structs</a></li><li><a href="#traits">Traits</a></li></ul></div><p class='location'></p><script>window.sidebarCurrent = {name: 'ryu', ty: 'mod', relpath: '../'};</script></div>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
<div class="theme-picker">
|
|||
|
|
<button id="theme-picker" aria-label="Pick another theme!">
|
|||
|
|
<img src="../brush.svg" width="18" alt="Pick another theme!">
|
|||
|
|
</button>
|
|||
|
|
<div id="theme-choices"></div>
|
|||
|
|
</div>
|
|||
|
|
<script src="../theme.js"></script>
|
|||
|
|
<nav class="sub">
|
|||
|
|
<form class="search-form js-only">
|
|||
|
|
<div class="search-container">
|
|||
|
|
<input class="search-input" name="search"
|
|||
|
|
autocomplete="off"
|
|||
|
|
placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
|
|||
|
|
type="search">
|
|||
|
|
</div>
|
|||
|
|
</form>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
<section id='main' class="content">
|
|||
|
|
<h1 class='fqn'><span class='in-band'>Crate <a class="mod" href=''>ryu</a></span><span class='out-of-band'><span id='render-detail'>
|
|||
|
|
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
|
|||
|
|
[<span class='inner'>−</span>]
|
|||
|
|
</a>
|
|||
|
|
</span><a class='srclink' href='../src/ryu/lib.rs.html#1-68' title='goto source code'>[src]</a></span></h1>
|
|||
|
|
<div class='docblock'><p>Pure Rust implementation of Ryū, an algorithm to quickly convert floating
|
|||
|
|
point numbers to decimal strings.</p>
|
|||
|
|
<p>The PLDI'18 paper <a href="https://dl.acm.org/citation.cfm?id=3192369"><em>Ryū: fast float-to-string conversion</em></a> by Ulf
|
|||
|
|
Adams includes a complete correctness proof of the algorithm. The paper is
|
|||
|
|
available under the creative commons CC-BY-SA license.</p>
|
|||
|
|
<p>This Rust implementation is a line-by-line port of Ulf Adams' implementation
|
|||
|
|
in C, <a href="https://github.com/ulfjack/ryu">https://github.com/ulfjack/ryu</a>. The <a href="raw/index.html"><code>ryu::raw</code></a>
|
|||
|
|
module exposes exactly the API and formatting of the C implementation as
|
|||
|
|
unsafe pure Rust functions. There is additionally a safe API as demonstrated
|
|||
|
|
in the example code below. The safe API uses the same underlying Ryū
|
|||
|
|
algorithm but diverges from the formatting of the C implementation to
|
|||
|
|
produce more human-readable output, for example <code>0.3</code> rather than <code>3E-1</code>.</p>
|
|||
|
|
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
|
|||
|
|
<pre class="rust rust-example-rendered">
|
|||
|
|
<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">ryu</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">main</span>() {
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buffer</span> <span class="op">=</span> <span class="ident">ryu</span>::<span class="ident">Buffer</span>::<span class="ident">new</span>();
|
|||
|
|
<span class="kw">let</span> <span class="ident">printed</span> <span class="op">=</span> <span class="ident">buffer</span>.<span class="ident">format</span>(<span class="number">1.234</span>);
|
|||
|
|
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">printed</span>, <span class="string">"1.234"</span>);
|
|||
|
|
}</pre>
|
|||
|
|
</div><h2 id='modules' class='section-header'><a href="#modules">Modules</a></h2>
|
|||
|
|
<table>
|
|||
|
|
<tr class=' module-item'>
|
|||
|
|
<td><a class="mod" href="raw/index.html"
|
|||
|
|
title='mod ryu::raw'>raw</a></td>
|
|||
|
|
<td class='docblock-short'>
|
|||
|
|
<p>Unsafe functions that exactly mirror the API of the C implementation of Ryū.</p>
|
|||
|
|
|
|||
|
|
</td>
|
|||
|
|
</tr></table><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
|
|||
|
|
<table>
|
|||
|
|
<tr class=' module-item'>
|
|||
|
|
<td><a class="struct" href="struct.Buffer.html"
|
|||
|
|
title='struct ryu::Buffer'>Buffer</a></td>
|
|||
|
|
<td class='docblock-short'>
|
|||
|
|
<p>Safe API for formatting floating point numbers to text.</p>
|
|||
|
|
|
|||
|
|
</td>
|
|||
|
|
</tr></table><h2 id='traits' class='section-header'><a href="#traits">Traits</a></h2>
|
|||
|
|
<table>
|
|||
|
|
<tr class=' module-item'>
|
|||
|
|
<td><a class="trait" href="trait.Float.html"
|
|||
|
|
title='trait ryu::Float'>Float</a></td>
|
|||
|
|
<td class='docblock-short'>
|
|||
|
|
<p>A floating point number, f32 or f64, that can be written into a
|
|||
|
|
[<code>ryu::Buffer</code>][Buffer].</p>
|
|||
|
|
|
|||
|
|
</td>
|
|||
|
|
</tr></table></section>
|
|||
|
|
<section id='search' class="content hidden"></section>
|
|||
|
|
|
|||
|
|
<section class="footer"></section>
|
|||
|
|
|
|||
|
|
<aside id="help" class="hidden">
|
|||
|
|
<div>
|
|||
|
|
<h1 class="hidden">Help</h1>
|
|||
|
|
|
|||
|
|
<div class="shortcuts">
|
|||
|
|
<h2>Keyboard Shortcuts</h2>
|
|||
|
|
|
|||
|
|
<dl>
|
|||
|
|
<dt><kbd>?</kbd></dt>
|
|||
|
|
<dd>Show this help dialog</dd>
|
|||
|
|
<dt><kbd>S</kbd></dt>
|
|||
|
|
<dd>Focus the search field</dd>
|
|||
|
|
<dt><kbd>↑</kbd></dt>
|
|||
|
|
<dd>Move up in search results</dd>
|
|||
|
|
<dt><kbd>↓</kbd></dt>
|
|||
|
|
<dd>Move down in search results</dd>
|
|||
|
|
<dt><kbd>↹</kbd></dt>
|
|||
|
|
<dd>Switch tab</dd>
|
|||
|
|
<dt><kbd>⏎</kbd></dt>
|
|||
|
|
<dd>Go to active search result</dd>
|
|||
|
|
<dt><kbd>+</kbd></dt>
|
|||
|
|
<dd>Expand all sections</dd>
|
|||
|
|
<dt><kbd>-</kbd></dt>
|
|||
|
|
<dd>Collapse all sections</dd>
|
|||
|
|
</dl>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<div class="infos">
|
|||
|
|
<h2>Search Tricks</h2>
|
|||
|
|
|
|||
|
|
<p>
|
|||
|
|
Prefix searches with a type followed by a colon (e.g.
|
|||
|
|
<code>fn:</code>) to restrict the search to a given type.
|
|||
|
|
</p>
|
|||
|
|
|
|||
|
|
<p>
|
|||
|
|
Accepted types are: <code>fn</code>, <code>mod</code>,
|
|||
|
|
<code>struct</code>, <code>enum</code>,
|
|||
|
|
<code>trait</code>, <code>type</code>, <code>macro</code>,
|
|||
|
|
and <code>const</code>.
|
|||
|
|
</p>
|
|||
|
|
|
|||
|
|
<p>
|
|||
|
|
Search functions by type signature (e.g.
|
|||
|
|
<code>vec -> usize</code> or <code>* -> vec</code>)
|
|||
|
|
</p>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</aside>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<script>
|
|||
|
|
window.rootPath = "../";
|
|||
|
|
window.currentCrate = "ryu";
|
|||
|
|
</script>
|
|||
|
|
<script src="../main.js"></script>
|
|||
|
|
<script defer src="../search-index.js"></script>
|
|||
|
|
</body>
|
|||
|
|
</html>
|