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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 `libcore/../stdsimd/coresimd/ppsv/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.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='../../../../../../core/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="doccomment">//! Portable Packed-SIMD Vectors.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! These types are:</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! * portable: work correctly on all architectures,</span>
<span class="doccomment">//! * packed: have a size fixed at compile-time.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! These two terms are the opposites of:</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! * architecture-specific: only available in a particular architecture,</span>
<span class="doccomment">//! * scalable: the vector&#39;s size is dynamic.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! This module is structured as follows:</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! * `api`: defines the API of the portable packed vector types.</span>
<span class="doccomment">//! * `v{width}`: defines the portable vector types for a particular `width`.</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! The portable packed vector types are named using the following schema:</span>
<span class="doccomment">//! `{t}{l_w}x{l_n}`:</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! * `t`: type - single letter corresponding to the following Rust literal</span>
<span class="doccomment">//! types:</span>
<span class="doccomment">//!   * `i`: signed integer</span>
<span class="doccomment">//!   * `u`: unsigned integer</span>
<span class="doccomment">//!   * `f`: floating point</span>
<span class="doccomment">//!   * `m`: vector mask</span>
<span class="doccomment">//! * `l_w`: lane width in bits</span>
<span class="doccomment">//! * `l_n`: number of lanes</span>
<span class="doccomment">//!</span>
<span class="doccomment">//! For example, `f32x4` is a vector type containing four 32-bit wide</span>
<span class="doccomment">//! floating-point numbers. The total width of this type is 32 bit times 4</span>
<span class="doccomment">//! lanes, that is, 128 bits, and is thus defined in the `v128` module.</span>

<span class="attribute">#[<span class="ident">macro_use</span>]</span>
<span class="kw">mod</span> <span class="ident">api</span>;

<span class="kw">mod</span> <span class="ident">v128</span>;
<span class="kw">mod</span> <span class="ident">v16</span>;
<span class="kw">mod</span> <span class="ident">v256</span>;
<span class="kw">mod</span> <span class="ident">v32</span>;
<span class="kw">mod</span> <span class="ident">v512</span>;
<span class="kw">mod</span> <span class="ident">v64</span>;

<span class="kw">pub</span> <span class="kw">use</span> <span class="self">self</span>::<span class="ident">v128</span>::<span class="kw-2">*</span>;
<span class="kw">pub</span> <span class="kw">use</span> <span class="self">self</span>::<span class="ident">v16</span>::<span class="kw-2">*</span>;
<span class="kw">pub</span> <span class="kw">use</span> <span class="self">self</span>::<span class="ident">v256</span>::<span class="kw-2">*</span>;
<span class="kw">pub</span> <span class="kw">use</span> <span class="self">self</span>::<span class="ident">v32</span>::<span class="kw-2">*</span>;
<span class="kw">pub</span> <span class="kw">use</span> <span class="self">self</span>::<span class="ident">v512</span>::<span class="kw-2">*</span>;
<span class="kw">pub</span> <span class="kw">use</span> <span class="self">self</span>::<span class="ident">v64</span>::<span class="kw-2">*</span>;

<span class="doccomment">/// Safe lossless bitwise conversion from `T` to `Self`.</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">FromBits</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span>: ::<span class="ident">marker</span>::<span class="ident">Sized</span> {
    <span class="doccomment">/// Safe lossless bitwise from `T` to `Self`.</span>
    <span class="kw">fn</span> <span class="ident">from_bits</span>(<span class="ident">T</span>) <span class="op">-&gt;</span> <span class="self">Self</span>;
}

<span class="doccomment">/// Safe lossless bitwise conversion from `Self` to `T`.</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">IntoBits</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span>: ::<span class="ident">marker</span>::<span class="ident">Sized</span> {
    <span class="doccomment">/// Safe lossless bitwise transmute from `self` to `T`.</span>
    <span class="kw">fn</span> <span class="ident">into_bits</span>(<span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">T</span>;
}

<span class="comment">// FromBits implies IntoBits.</span>
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">T</span>, <span class="ident">U</span><span class="op">&gt;</span> <span class="ident">IntoBits</span><span class="op">&lt;</span><span class="ident">U</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">T</span>
<span class="kw">where</span>
    <span class="ident">U</span>: <span class="ident">FromBits</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span>,
{
    <span class="attribute">#[<span class="ident">inline</span>]</span>
    <span class="kw">fn</span> <span class="ident">into_bits</span>(<span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">U</span> {
        <span class="macro">debug_assert</span><span class="macro">!</span>(::<span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op">&lt;</span><span class="self">Self</span><span class="op">&gt;</span>() <span class="op">==</span> ::<span class="ident">mem</span>::<span class="ident">size_of</span>::<span class="op">&lt;</span><span class="ident">U</span><span class="op">&gt;</span>());
        <span class="ident">U</span>::<span class="ident">from_bits</span>(<span class="self">self</span>)
    }
}

<span class="comment">// FromBits (and thus IntoBits) is reflexive.</span>
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span> <span class="ident">FromBits</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">T</span> {
    <span class="attribute">#[<span class="ident">inline</span>]</span>
    <span class="kw">fn</span> <span class="ident">from_bits</span>(<span class="ident">t</span>: <span class="self">Self</span>) <span class="op">-&gt;</span> <span class="self">Self</span> {
        <span class="ident">t</span>
    }
}

<span class="doccomment">/// Work arounds code generation issues.</span>
<span class="kw">mod</span> <span class="ident">codegen</span>;
</pre>
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