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<h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>rand</a>::<wbr><a class='trait' href=''>SeedableRng</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a id='src-1617' class='srclink' href='../src/rand/lib.rs.html#626-654' title='goto source code'>[src]</a></span></h1>
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<pre class='rust trait'>pub trait SeedableRng<Seed>: <a class='trait' href='../rand/trait.Rng.html' title='rand::Rng'>Rng</a> {
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fn <a href='#tymethod.reseed' class='fnname'>reseed</a>(&mut self, Seed);
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fn <a href='#tymethod.from_seed' class='fnname'>from_seed</a>(seed: Seed) -> Self;
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}</pre><div class='docblock'><p>A random number generator that can be explicitly seeded to produce
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the same stream of randomness multiple times.</p>
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<h2 id='required-methods'>Required Methods</h2>
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<div class='methods'>
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<h3 id='tymethod.reseed' class='method stab '><code>fn <a href='#tymethod.reseed' class='fnname'>reseed</a>(&mut self, Seed)</code></h3><div class='docblock'><p>Reseed an RNG with the given seed.</p>
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<h1 id='example' class='section-header'><a href='#example'>Example</a></h1>
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<pre class='rust rust-example-rendered'>
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<span class='kw'>use</span> <span class='ident'>rand</span>::{<span class='ident'>Rng</span>, <span class='ident'>SeedableRng</span>, <span class='ident'>StdRng</span>};
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<span class='kw'>let</span> <span class='ident'>seed</span>: <span class='kw-2'>&</span>[_] <span class='op'>=</span> <span class='kw-2'>&</span>[<span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>, <span class='number'>4</span>];
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<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>rng</span>: <span class='ident'>StdRng</span> <span class='op'>=</span> <span class='ident'>SeedableRng</span>::<span class='ident'>from_seed</span>(<span class='ident'>seed</span>);
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<span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"{}"</span>, <span class='ident'>rng</span>.<span class='ident'>gen</span>::<span class='op'><</span><span class='ident'>f64</span><span class='op'>></span>());
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<span class='ident'>rng</span>.<span class='ident'>reseed</span>(<span class='kw-2'>&</span>[<span class='number'>5</span>, <span class='number'>6</span>, <span class='number'>7</span>, <span class='number'>8</span>]);
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<span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"{}"</span>, <span class='ident'>rng</span>.<span class='ident'>gen</span>::<span class='op'><</span><span class='ident'>f64</span><span class='op'>></span>());</pre>
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</div><h3 id='tymethod.from_seed' class='method stab '><code>fn <a href='#tymethod.from_seed' class='fnname'>from_seed</a>(seed: Seed) -> Self</code></h3><div class='docblock'><p>Create a new RNG with the given seed.</p>
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<h1 id='example-1' class='section-header'><a href='#example-1'>Example</a></h1>
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<pre class='rust rust-example-rendered'>
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<span class='kw'>use</span> <span class='ident'>rand</span>::{<span class='ident'>Rng</span>, <span class='ident'>SeedableRng</span>, <span class='ident'>StdRng</span>};
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<span class='kw'>let</span> <span class='ident'>seed</span>: <span class='kw-2'>&</span>[_] <span class='op'>=</span> <span class='kw-2'>&</span>[<span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>, <span class='number'>4</span>];
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<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>rng</span>: <span class='ident'>StdRng</span> <span class='op'>=</span> <span class='ident'>SeedableRng</span>::<span class='ident'>from_seed</span>(<span class='ident'>seed</span>);
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<span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"{}"</span>, <span class='ident'>rng</span>.<span class='ident'>gen</span>::<span class='op'><</span><span class='ident'>f64</span><span class='op'>></span>());</pre>
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<h2 id='implementors'>Implementors</h2>
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<ul class='item-list' id='implementors-list'>
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<li><code>impl<'a> SeedableRng for <a class='struct' href='../rand/isaac/struct.IsaacRng.html' title='rand::isaac::IsaacRng'>IsaacRng</a></code></li>
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<li><code>impl<'a> SeedableRng for <a class='struct' href='../rand/isaac/struct.Isaac64Rng.html' title='rand::isaac::Isaac64Rng'>Isaac64Rng</a></code></li>
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<li><code>impl<'a> SeedableRng for <a class='struct' href='../rand/chacha/struct.ChaChaRng.html' title='rand::chacha::ChaChaRng'>ChaChaRng</a></code></li>
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<li><code>impl<S, R: <a class='trait' href='../rand/trait.SeedableRng.html' title='rand::SeedableRng'>SeedableRng</a><S>, Rsdr: <a class='trait' href='../rand/reseeding/trait.Reseeder.html' title='rand::reseeding::Reseeder'>Reseeder</a><R> + <a class='trait' href='https://doc.rust-lang.org/nightly/core/default/trait.Default.html' title='core::default::Default'>Default</a>> SeedableRng for <a class='struct' href='../rand/reseeding/struct.ReseedingRng.html' title='rand::reseeding::ReseedingRng'>ReseedingRng</a><R, Rsdr></code></li>
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<li><code>impl SeedableRng for <a class='struct' href='../rand/struct.XorShiftRng.html' title='rand::XorShiftRng'>XorShiftRng</a></code></li>
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<li><code>impl<'a> SeedableRng for <a class='struct' href='../rand/struct.StdRng.html' title='rand::StdRng'>StdRng</a></code></li>
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