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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 of the Rust file `/root/.cargo/git/checkouts/rayon-3b3b152053499ede/a07ce2e/src/iter/product.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>product.rs - source</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" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.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 source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../rayon/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../rayon/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
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 </pre><pre class="rust"><code><span class="kw">use </span><span class="kw">super</span>::plumbing::<span class="kw-2">*</span>;
 <span class="kw">use </span><span class="kw">super</span>::ParallelIterator;

 <span class="kw">use </span>std::iter::{<span class="self">self</span>, Product};
 <span class="kw">use </span>std::marker::PhantomData;

 <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>product&lt;PI, P&gt;(pi: PI) -&gt; P
 <span class="kw">where
     </span>PI: ParallelIterator,
     P: Send + Product&lt;PI::Item&gt; + Product,
 {
     pi.drive_unindexed(ProductConsumer::new())
 }

 <span class="kw">fn </span>mul&lt;T: Product&gt;(left: T, right: T) -&gt; T {
     iter::once(left).chain(iter::once(right)).product()
 }

 <span class="kw">struct </span>ProductConsumer&lt;P: Send&gt; {
     _marker: PhantomData&lt;<span class="kw-2">*const </span>P&gt;,
 }

 <span class="kw">unsafe impl</span>&lt;P: Send&gt; Send <span class="kw">for </span>ProductConsumer&lt;P&gt; {}

 <span class="kw">impl</span>&lt;P: Send&gt; ProductConsumer&lt;P&gt; {
     <span class="kw">fn </span>new() -&gt; ProductConsumer&lt;P&gt; {
         ProductConsumer {
             _marker: PhantomData,
         }
     }
 }

 <span class="kw">impl</span>&lt;P, T&gt; Consumer&lt;T&gt; <span class="kw">for </span>ProductConsumer&lt;P&gt;
 <span class="kw">where
     </span>P: Send + Product&lt;T&gt; + Product,
 {
     <span class="kw">type </span>Folder = ProductFolder&lt;P&gt;;
     <span class="kw">type </span>Reducer = <span class="self">Self</span>;
     <span class="kw">type </span><span class="prelude-ty">Result </span>= P;

     <span class="kw">fn </span>split_at(<span class="self">self</span>, _index: usize) -&gt; (<span class="self">Self</span>, <span class="self">Self</span>, <span class="self">Self</span>) {
         (
             ProductConsumer::new(),
             ProductConsumer::new(),
             ProductConsumer::new(),
         )
     }

     <span class="kw">fn </span>into_folder(<span class="self">self</span>) -&gt; <span class="self">Self</span>::Folder {
         ProductFolder {
             product: iter::empty::&lt;T&gt;().product(),
         }
     }

     <span class="kw">fn </span>full(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="bool-val">false
     </span>}
 }

 <span class="kw">impl</span>&lt;P, T&gt; UnindexedConsumer&lt;T&gt; <span class="kw">for </span>ProductConsumer&lt;P&gt;
 <span class="kw">where
     </span>P: Send + Product&lt;T&gt; + Product,
 {
     <span class="kw">fn </span>split_off_left(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self </span>{
         ProductConsumer::new()
     }

     <span class="kw">fn </span>to_reducer(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Reducer {
         ProductConsumer::new()
     }
 }

 <span class="kw">impl</span>&lt;P&gt; Reducer&lt;P&gt; <span class="kw">for </span>ProductConsumer&lt;P&gt;
 <span class="kw">where
     </span>P: Send + Product,
 {
     <span class="kw">fn </span>reduce(<span class="self">self</span>, left: P, right: P) -&gt; P {
         mul(left, right)
     }
 }

 <span class="kw">struct </span>ProductFolder&lt;P&gt; {
     product: P,
 }

 <span class="kw">impl</span>&lt;P, T&gt; Folder&lt;T&gt; <span class="kw">for </span>ProductFolder&lt;P&gt;
 <span class="kw">where
     </span>P: Product&lt;T&gt; + Product,
 {
     <span class="kw">type </span><span class="prelude-ty">Result </span>= P;

     <span class="kw">fn </span>consume(<span class="self">self</span>, item: T) -&gt; <span class="self">Self </span>{
         ProductFolder {
             product: mul(<span class="self">self</span>.product, iter::once(item).product()),
         }
     }

     <span class="kw">fn </span>consume_iter&lt;I&gt;(<span class="self">self</span>, iter: I) -&gt; <span class="self">Self
     </span><span class="kw">where
         </span>I: IntoIterator&lt;Item = T&gt;,
     {
         ProductFolder {
             product: mul(<span class="self">self</span>.product, iter.into_iter().product()),
         }
     }

     <span class="kw">fn </span>complete(<span class="self">self</span>) -&gt; P {
         <span class="self">self</span>.product
     }

     <span class="kw">fn </span>full(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="bool-val">false
     </span>}
 }
 </code></pre></div>
 </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="rayon" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></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="Source of the Rust file `/root/.cargo/git/checkouts/rayon-3b3b152053499ede/a07ce2e/src/iter/product.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>product.rs - source</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" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.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 source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../rayon/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../rayon/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
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	</pre><pre class="rust"><code><span class="kw">use </span><span class="kw">super</span>::plumbing::<span class="kw-2">*</span>;
	<span class="kw">use </span><span class="kw">super</span>::ParallelIterator;

	<span class="kw">use </span>std::iter::{<span class="self">self</span>, Product};
	<span class="kw">use </span>std::marker::PhantomData;

	<span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>product<PI, P>(pi: PI) -> P
	<span class="kw">where
	</span>PI: ParallelIterator,
	P: Send + Product<PI::Item> + Product,
	{
	pi.drive_unindexed(ProductConsumer::new())
	}

	<span class="kw">fn </span>mul<T: Product>(left: T, right: T) -> T {
	iter::once(left).chain(iter::once(right)).product()
	}

	<span class="kw">struct </span>ProductConsumer<P: Send> {
	_marker: PhantomData<<span class="kw-2">*const </span>P>,
	}

	<span class="kw">unsafe impl</span><P: Send> Send <span class="kw">for </span>ProductConsumer<P> {}

	<span class="kw">impl</span><P: Send> ProductConsumer<P> {
	<span class="kw">fn </span>new() -> ProductConsumer<P> {
	ProductConsumer {
	_marker: PhantomData,
	}
	}
	}

	<span class="kw">impl</span><P, T> Consumer<T> <span class="kw">for </span>ProductConsumer<P>
	<span class="kw">where
	</span>P: Send + Product<T> + Product,
	{
	<span class="kw">type </span>Folder = ProductFolder<P>;
	<span class="kw">type </span>Reducer = <span class="self">Self</span>;
	<span class="kw">type </span><span class="prelude-ty">Result </span>= P;

	<span class="kw">fn </span>split_at(<span class="self">self</span>, _index: usize) -> (<span class="self">Self</span>, <span class="self">Self</span>, <span class="self">Self</span>) {
	(
	ProductConsumer::new(),
	ProductConsumer::new(),
	ProductConsumer::new(),
	)
	}

	<span class="kw">fn </span>into_folder(<span class="self">self</span>) -> <span class="self">Self</span>::Folder {
	ProductFolder {
	product: iter::empty::<T>().product(),
	}
	}

	<span class="kw">fn </span>full(<span class="kw-2">&</span><span class="self">self</span>) -> bool {
	<span class="bool-val">false
	</span>}
	}

	<span class="kw">impl</span><P, T> UnindexedConsumer<T> <span class="kw">for </span>ProductConsumer<P>
	<span class="kw">where
	</span>P: Send + Product<T> + Product,
	{
	<span class="kw">fn </span>split_off_left(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{
	ProductConsumer::new()
	}

	<span class="kw">fn </span>to_reducer(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self</span>::Reducer {
	ProductConsumer::new()
	}
	}

	<span class="kw">impl</span><P> Reducer<P> <span class="kw">for </span>ProductConsumer<P>
	<span class="kw">where
	</span>P: Send + Product,
	{
	<span class="kw">fn </span>reduce(<span class="self">self</span>, left: P, right: P) -> P {
	mul(left, right)
	}
	}

	<span class="kw">struct </span>ProductFolder<P> {
	product: P,
	}

	<span class="kw">impl</span><P, T> Folder<T> <span class="kw">for </span>ProductFolder<P>
	<span class="kw">where
	</span>P: Product<T> + Product,
	{
	<span class="kw">type </span><span class="prelude-ty">Result </span>= P;

	<span class="kw">fn </span>consume(<span class="self">self</span>, item: T) -> <span class="self">Self </span>{
	ProductFolder {
	product: mul(<span class="self">self</span>.product, iter::once(item).product()),
	}
	}

	<span class="kw">fn </span>consume_iter<I>(<span class="self">self</span>, iter: I) -> <span class="self">Self
	</span><span class="kw">where
	</span>I: IntoIterator<Item = T>,
	{
	ProductFolder {
	product: mul(<span class="self">self</span>.product, iter.into_iter().product()),
	}
	}

	<span class="kw">fn </span>complete(<span class="self">self</span>) -> P {
	<span class="self">self</span>.product
	}

	<span class="kw">fn </span>full(<span class="kw-2">&</span><span class="self">self</span>) -> bool {
	<span class="bool-val">false
	</span>}
	}
	</code></pre></div>
	</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="rayon" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>