2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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<title>num_traits::cast::cast - Rust</title>
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2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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2017-07-14 23:30:16 +00:00
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<h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>num_traits</a>::<wbr><a href='index.html'>cast</a>::<wbr><a class="fn" href=''>cast</a></span><span class='out-of-band'><span id='render-detail'>
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2017-07-14 23:30:16 +00:00
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</span><a class='srclink' href='../../src/num_traits/cast.rs.html#411-413' title='goto source code'>[src]</a></span></h1>
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<pre class='rust fn'>pub fn cast<T: <a class="trait" href="../../num_traits/cast/trait.NumCast.html" title="trait num_traits::cast::NumCast">NumCast</a>, U: <a class="trait" href="../../num_traits/cast/trait.NumCast.html" title="trait num_traits::cast::NumCast">NumCast</a>>(n: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><U></pre><div class='docblock'><p>Cast from one machine scalar to another.</p>
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<pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="ident">twenty</span>: <span class="ident">f32</span> <span class="op">=</span> <span class="ident">num</span>::<span class="ident">cast</span>(<span class="number">0x14</span>).<span class="ident">unwrap</span>();
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">twenty</span>, <span class="number">20f32</span>);<a class="test-arrow" target="_blank" href="http://play.integer32.com/?code=extern%20crate%20num_traits%3B%0Afn%20main()%20%7B%0Ause%20num_traits%20as%20num%3B%0Alet%20twenty%3A%20f32%20%3D%20num%3A%3Acast(0x14).unwrap()%3B%0Aassert_eq!(twenty%2C%2020f32)%3B%0A%7D">Run</a></pre>
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2017-07-14 23:24:09 +00:00
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