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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source to the Rust file `libstd/sys/unix/cmath.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>cmath.rs.html -- source</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="../../../../light.css" id="themeStyle"><script src="../../../../storage.js"></script><link rel="shortcut icon" href="https://doc.rust-lang.org/favicon.ico"></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><a href='../../../../std/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a></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"><a id="settings-menu" href="../../../../settings.html"><img src="../../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span>
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<span class="comment">// Copyright 2017 The Rust Project Developers. See the COPYRIGHT</span>
<span class="comment">// file at the top-level directory of this distribution and at</span>
<span class="comment">// http://rust-lang.org/COPYRIGHT.</span>
<span class="comment">//</span>
<span class="comment">// Licensed under the Apache License, Version 2.0 &lt;LICENSE-APACHE or</span>
<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0&gt; or the MIT license</span>
<span class="comment">// &lt;LICENSE-MIT or http://opensource.org/licenses/MIT&gt;, at your</span>
<span class="comment">// option. This file may not be copied, modified, or distributed</span>
<span class="comment">// except according to those terms.</span>

<span class="attribute">#![<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">test</span>))]</span>

<span class="kw">use</span> <span class="ident">libc</span>::{<span class="ident">c_float</span>, <span class="ident">c_double</span>};

<span class="attribute">#[<span class="ident">link_name</span> <span class="op">=</span> <span class="string">&quot;m&quot;</span>]</span>
<span class="kw">extern</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">acos</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">acosf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">asin</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">asinf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">atan</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">atan2</span>(<span class="ident">a</span>: <span class="ident">c_double</span>, <span class="ident">b</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">atan2f</span>(<span class="ident">a</span>: <span class="ident">c_float</span>, <span class="ident">b</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">atanf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">cbrt</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">cbrtf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">cosh</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">coshf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">expm1</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">expm1f</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">fdim</span>(<span class="ident">a</span>: <span class="ident">c_double</span>, <span class="ident">b</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">fdimf</span>(<span class="ident">a</span>: <span class="ident">c_float</span>, <span class="ident">b</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">hypot</span>(<span class="ident">x</span>: <span class="ident">c_double</span>, <span class="ident">y</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">hypotf</span>(<span class="ident">x</span>: <span class="ident">c_float</span>, <span class="ident">y</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">log1p</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">log1pf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">sinh</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">sinhf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">tan</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">tanf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">tanh</span>(<span class="ident">n</span>: <span class="ident">c_double</span>) <span class="op">-&gt;</span> <span class="ident">c_double</span>;
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">tanhf</span>(<span class="ident">n</span>: <span class="ident">c_float</span>) <span class="op">-&gt;</span> <span class="ident">c_float</span>;
}
</pre>
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