<!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 `FromIterator` trait in crate `std`."><meta name="keywords" content="rust, rustlang, rust-lang, FromIterator"><title>std::iter::FromIterator - 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="../../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 trait"><!--[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><a href='../../std/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a><p class='location'>Trait FromIterator</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.from_iter">from_iter</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../index.html'>std</a>::<wbr><a href='index.html'>iter</a></p><script>window.sidebarCurrent = {name: 'FromIterator', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></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"><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"><h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>std</a>::<wbr><a href='index.html'>iter</a>::<wbr><a class="trait" href=''>FromIterator</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><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/core/iter/traits.rs.html#109-131' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait FromIterator<A> {
fn <a href='#tymethod.from_iter' class='fnname'>from_iter</a><T>(iter: T) -> Self<br> <span class="where">where<br> T: <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a><Item = A></span>;
}</pre></div><div class='docblock'><p>Conversion from an <code>Iterator</code>.</p>
<p>By implementing <code>FromIterator</code> for a type, you define how it will be
created from an iterator. This is common for types which describe a
collection of some kind.</p>
<p><code>FromIterator</code>'s <a href="#tymethod.from_iter"><code>from_iter</code></a> is rarely called explicitly, and is instead
used through <a href="trait.Iterator.html"><code>Iterator</code></a>'s <a href="trait.Iterator.html#method.collect"><code>collect</code></a> method. See <a href="trait.Iterator.html#method.collect"><code>collect</code></a>'s
documentation for more examples.</p>
<p>See also: <a href="trait.IntoIterator.html"><code>IntoIterator</code></a>.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<p>Basic usage:</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">iter</span>::<span class="ident">FromIterator</span>;
<span class="kw">let</span> <span class="ident">five_fives</span> <span class="op">=</span> <span class="ident">std</span>::<span class="ident">iter</span>::<span class="ident">repeat</span>(<span class="number">5</span>).<span class="ident">take</span>(<span class="number">5</span>);
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">from_iter</span>(<span class="ident">five_fives</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>]);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Aiter%3A%3AFromIterator%3B%0A%0Alet%20five_fives%20%3D%20std%3A%3Aiter%3A%3Arepeat(5).take(5)%3B%0A%0Alet%20v%20%3D%20Vec%3A%3Afrom_iter(five_fives)%3B%0A%0Aassert_eq!(v%2C%20vec!%5B5%2C%205%2C%205%2C%205%2C%205%5D)%3B%0A%7D">Run</a></pre>
<p>Using <a href="trait.Iterator.html#method.collect"><code>collect</code></a> to implicitly use <code>FromIterator</code>:</p>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="ident">five_fives</span> <span class="op">=</span> <span class="ident">std</span>::<span class="ident">iter</span>::<span class="ident">repeat</span>(<span class="number">5</span>).<span class="ident">take</span>(<span class="number">5</span>);
<span class="kw">let</span> <span class="ident">v</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">five_fives</span>.<span class="ident">collect</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>]);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Alet%20five_fives%20%3D%20std%3A%3Aiter%3A%3Arepeat(5).take(5)%3B%0A%0Alet%20v%3A%20Vec%3Ci32%3E%20%3D%20five_fives.collect()%3B%0A%0Aassert_eq!(v%2C%20vec!%5B5%2C%205%2C%205%2C%205%2C%205%5D)%3B%0A%7D">Run</a></pre>
<p>Implementing <code>FromIterator</code> for your type:</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">iter</span>::<span class="ident">FromIterator</span>;
<span class="comment">// A sample collection, that's just a wrapper over Vec<T></span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
<span class="kw">struct</span> <span class="ident">MyCollection</span>(<span class="ident">Vec</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span>);
<span class="comment">// Let's give it some methods so we can create one and add things</span>
<span class="comment">// to it.</span>
<span class="kw">impl</span> <span class="ident">MyCollection</span> {
<span class="kw">fn</span> <span class="ident">new</span>() <span class="op">-></span> <span class="ident">MyCollection</span> {
<span class="ident">MyCollection</span>(<span class="ident">Vec</span>::<span class="ident">new</span>())
}
<span class="kw">fn</span> <span class="ident">add</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">elem</span>: <span class="ident">i32</span>) {
<span class="self">self</span>.<span class="number">0</span>.<span class="ident">push</span>(<span class="ident">elem</span>);
}
}
<span class="comment">// and we'll implement FromIterator</span>
<span class="kw">impl</span> <span class="ident">FromIterator</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="kw">for</span> <span class="ident">MyCollection</span> {
<span class="kw">fn</span> <span class="ident">from_iter</span><span class="op"><</span><span class="ident">I</span>: <span class="ident">IntoIterator</span><span class="op"><</span><span class="ident">Item</span><span class="op">=</span><span class="ident">i32</span><span class="op">>></span>(<span class="ident">iter</span>: <span class="ident">I</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">c</span> <span class="op">=</span> <span class="ident">MyCollection</span>::<span class="ident">new</span>();
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="ident">iter</span> {
<span class="ident">c</span>.<span class="ident">add</span>(<span class="ident">i</span>);
}
<span class="ident">c</span>
}
}
<span class="comment">// Now we can make a new iterator...</span>
<span class="kw">let</span> <span class="ident">iter</span> <span class="op">=</span> (<span class="number">0</span>..<span class="number">5</span>).<span class="ident">into_iter</span>();
<span class="comment">// ... and make a MyCollection out of it</span>
<span class="kw">let</span> <span class="ident">c</span> <span class="op">=</span> <span class="ident">MyCollection</span>::<span class="ident">from_iter</span>(<span class="ident">iter</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">c</span>.<span class="number">0</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<span class="comment">// collect works too!</span>
<span class="kw">let</span> <span class="ident">iter</span> <span class="op">=</span> (<span class="number">0</span>..<span class="number">5</span>).<span class="ident">into_iter</span>();
<span class="kw">let</span> <span class="ident">c</span>: <span class="ident">MyCollection</span> <span class="op">=</span> <span class="ident">iter</span>.<span class="ident">collect</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">c</span>.<span class="number">0</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Aiter%3A%3AFromIterator%3B%0A%0A%2F%2F%20A%20sample%20collection%2C%20that's%20just%20a%20wrapper%20over%20Vec%3CT%3E%0A%23%5Bderive(Debug)%5D%0Astruct%20MyCollection(Vec%3Ci32%3E)%3B%0A%0A%2F%2F%20Let's%20give%20it%20some%20methods%20so%20we%20can%20create%20one%20and%20add%20things%0A%2F%2F%20to%20it.%0Aimpl%20MyCollection%20%7B%0A%20%20%20%20fn%20new()%20-%3E%20MyCollection%20%7B%0A%20%20%20%20%20%20%20%20MyCollection(Vec%3A%3Anew())%0A%20%20%20%20%7D%0A%0A%20%20%20%20fn%20add(%26mut%20self%2C%20elem%3A%20i32)%20%7B%0A%20%20%20%20%20%20%20%20self.0.push(elem)%3B%0A%20%20%20%20%7D%0A%7D%0A%0A%2F%2F%20and%20we'll%20implement%20FromIterator%0Aimpl%20FromIterator%3Ci32%3E%20for%20MyCollection%20%7B%0A%20%20%20%20fn%20from_iter%3CI%3A%20IntoIterator%3CItem%3Di32%3E%3E(iter%3A%20I)%20-%3E%20Self%20%7B%0A%20%20%20%20%20%20%20%20let%20mut%20c%20%3D%20MyCollection%3A%3Anew()%3B%0A%0A%20%20%20%20%20%20%20%20for%20i%20in%20iter%20%7B%0A%20%20%20%20%20%20%20%20%20%20%20%20c.add(i)%3B%0A%20%20%20%20%20%20%20%20%7D%0A%0A%20%20%20%20%20%20%20%20c%0A%20%20%20%20%7D%0A%7D%0A%0A%2F%2F%20Now%20we%20can%20make%20a%20new%20iterator...%0Alet%20iter%20%3D%20(0..5).into_iter()%3B%0A%0A%2F%2F%20...%20and%20make%20a%20MyCollection%20out%20of%20it%0Alet%20c%20%3D%20MyCollection%3A%3Afrom_iter(iter)%3B%0A%0Aassert_eq!(c.0%2C%20vec!%5B0%2C%201%2C%202%2C%203%2C%204%5D)%3B%0A%0A%2F%2F%20collect%20works%20too!%0A%0Alet%20iter%20%3D%20(0..5).into_iter()%3B%0Alet%20c%3A%20MyCollection%20%3D%20iter.collect()%3B%0A%0Aassert_eq!(c.0%2C%20vec!%5B0%2C%201%2C%202%2C%203%2C%204%5D)%3B%0A%7D">Run</a></pre>
</div>
<h2 id='required-methods' class='small-section-header'>
Required Methods<a href='#required-methods' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='tymethod.from_iter' class='method'><span id='from_iter.v' class='invisible'><code>fn <a href='#tymethod.from_iter' class='fnname'>from_iter</a><T>(iter: T) -> Self <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a><Item = A>, </span></code></span></h3><div class='docblock'><p>Creates a value from an iterator.</p>
<p>See the <a href="index.html">module-level documentation</a> for more.</p>
<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
<p>Basic usage:</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">iter</span>::<span class="ident">FromIterator</span>;
<span class="kw">let</span> <span class="ident">five_fives</span> <span class="op">=</span> <span class="ident">std</span>::<span class="ident">iter</span>::<span class="ident">repeat</span>(<span class="number">5</span>).<span class="ident">take</span>(<span class="number">5</span>);
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">from_iter</span>(<span class="ident">five_fives</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>]);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Aiter%3A%3AFromIterator%3B%0A%0Alet%20five_fives%20%3D%20std%3A%3Aiter%3A%3Arepeat(5).take(5)%3B%0A%0Alet%20v%20%3D%20Vec%3A%3Afrom_iter(five_fives)%3B%0A%0Aassert_eq!(v%2C%20vec!%5B5%2C%205%2C%205%2C%205%2C%205%5D)%3B%0A%7D">Run</a></pre>
</div></div>
<h2 id='implementors' class='small-section-header'>
Implementors<a href='#implementors' class='anchor'></a>
</h2>
<ul class='item-list' id='implementors-list'>
<li><table class='table-display'><tbody><tr><td><code>impl<A, V> FromIterator<<a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><A>> for <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><V> <span class="where fmt-newline">where<br> V: <a class="trait" href="../../std/iter/trait.FromIterator.html" title="trait std::iter::FromIterator">FromIterator</a><A>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/core/option.rs.html#1190-1256' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl FromIterator<<a class="primitive" href="../primitive.unit.html">()</a>> for <a class="primitive" href="../primitive.unit.html">()</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/core/unit.rs.html#27-31' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<A, E, V> FromIterator<<a class="enum" href="../../std/result/enum.Result.html" title="enum std::result::Result">Result</a><A, E>> for <a class="enum" href="../../std/result/enum.Result.html" title="enum std::result::Result">Result</a><V, E> <span class="where fmt-newline">where<br> V: <a class="trait" href="../../std/iter/trait.FromIterator.html" title="trait std::iter::FromIterator">FromIterator</a><A>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/core/result.rs.html#1139-1193' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl FromIterator<<a class="primitive" href="../primitive.char.html">char</a>> for <a class="struct" href="../../std/string/struct.String.html" title="struct std::string::String">String</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#1694-1700' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<'a> FromIterator<<a class="struct" href="../../std/string/struct.String.html" title="struct std::string::String">String</a>> for <a class="enum" href="../../std/borrow/enum.Cow.html" title="enum std::borrow::Cow">Cow</a><'a, <a class="primitive" href="../primitive.str.html">str</a>></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#2266-2270' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<'a, 'b> FromIterator<&'b <a class="primitive" href="../primitive.str.html">str</a>> for <a class="enum" href="../../std/borrow/enum.Cow.html" title="enum std::borrow::Cow">Cow</a><'a, <a class="primitive" href="../primitive.str.html">str</a>></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#2259-2263' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<'a, T> FromIterator<T> for <a class="enum" href="../../std/borrow/enum.Cow.html" title="enum std::borrow::Cow">Cow</a><'a, <a class="primitive" href="../primitive.slice.html">[</a>T<a class="primitive" href="../primitive.slice.html">]</a>> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/clone/trait.Clone.html" title="trait std::clone::Clone">Clone</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/vec.rs.html#2294-2298' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<'a> FromIterator<&'a <a class="primitive" href="../primitive.str.html">str</a>> for <a class="struct" href="../../std/string/struct.String.html" title="struct std::string::String">String</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#1712-1718' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<T> FromIterator<T> for <a class="struct" href="../../std/collections/binary_heap/struct.BinaryHeap.html" title="struct std::collections::binary_heap::BinaryHeap">BinaryHeap</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.Ord.html" title="trait std::cmp::Ord">Ord</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/binary_heap.rs.html#1112-1116' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<'a> FromIterator<<a class="enum" href="../../std/borrow/enum.Cow.html" title="enum std::borrow::Cow">Cow</a><'a, <a class="primitive" href="../primitive.str.html">str</a>>> for <a class="struct" href="../../std/string/struct.String.html" title="struct std::string::String">String</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#1730-1736' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<T> FromIterator<T> for <a class="struct" href="../../std/vec/struct.Vec.html" title="struct std::vec::Vec">Vec</a><T></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/vec.rs.html#1746-1751' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<T> FromIterator<T> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/linked_list.rs.html#1067-1073' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<K, V> FromIterator<<a class="primitive" href="../primitive.tuple.html">(</a>K, V<a class="primitive" href="../primitive.tuple.html">)</a>> for <a class="struct" href="../../std/collections/btree_map/struct.BTreeMap.html" title="struct std::collections::btree_map::BTreeMap">BTreeMap</a><K, V> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../std/cmp/trait.Ord.html" title="trait std::cmp::Ord">Ord</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/btree/map.rs.html#1710-1716' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<T> FromIterator<T> for <a class="struct" href="../../std/collections/btree_set/struct.BTreeSet.html" title="struct std::collections::btree_set::BTreeSet">BTreeSet</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.Ord.html" title="trait std::cmp::Ord">Ord</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/btree/set.rs.html#756-762' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<A> FromIterator<A> for <a class="struct" href="../../std/collections/vec_deque/struct.VecDeque.html" title="struct std::collections::vec_deque::VecDeque">VecDeque</a><A></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/vec_deque.rs.html#2452-2460' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<'a> FromIterator<<a class="primitive" href="../primitive.char.html">char</a>> for <a class="enum" href="../../std/borrow/enum.Cow.html" title="enum std::borrow::Cow">Cow</a><'a, <a class="primitive" href="../primitive.str.html">str</a>></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#2252-2256' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl FromIterator<<a class="struct" href="../../std/string/struct.String.html" title="struct std::string::String">String</a>> for <a class="struct" href="../../std/string/struct.String.html" title="struct std::string::String">String</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#1721-1727' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<'a> FromIterator<&'a <a class="primitive" href="../primitive.char.html">char</a>> for <a class="struct" href="../../std/string/struct.String.html" title="struct std::string::String">String</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/alloc/string.rs.html#1703-1709' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<K, V, S> FromIterator<<a class="primitive" href="../primitive.tuple.html">(</a>K, V<a class="primitive" href="../primitive.tuple.html">)</a>> for <a class="struct" href="../../std/collections/struct.HashMap.html" title="struct std::collections::HashMap">HashMap</a><K, V, S> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../std/cmp/trait.Eq.html" title="trait std::cmp::Eq">Eq</a> + <a class="trait" href="../../std/hash/trait.Hash.html" title="trait std::hash::Hash">Hash</a>,<br> S: <a class="trait" href="../../std/hash/trait.BuildHasher.html" title="trait std::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="../../std/default/trait.Default.html" title="trait std::default::Default">Default</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/std/collections/hash/map.rs.html#2512-2521' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<T, S> FromIterator<T> for <a class="struct" href="../../std/collections/struct.HashSet.html" title="struct std::collections::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.Eq.html" title="trait std::cmp::Eq">Eq</a> + <a class="trait" href="../../std/hash/trait.Hash.html" title="trait std::hash::Hash">Hash</a>,<br> S: <a class="trait" href="../../std/hash/trait.BuildHasher.html" title="trait std::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="../../std/default/trait.Default.html" title="trait std::default::Default">Default</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../../src/std/collections/hash/set.rs.html#799-808' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
<li><table class='table-display'><tbody><tr><td><code>impl<P: <a class="trait" href="../../std/convert/trait.AsRef.html" title="trait std::convert::AsRef">AsRef</a><<a class="struct" href="../../std/path/struct.Path.html" title="struct std::path::Path">Path</a>>> FromIterator<P> for <a class="struct" href="../../std/path/struct.PathBuf.html" title="struct std::path::PathBuf">PathBuf</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/std/path.rs.html#1442-1448' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
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