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| </pre><pre class="rust"><code><span class="comment">// Copyright 2018 Developers of the Rand project.</span> |
| <span class="comment">//</span> |
| <span class="comment">// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span> |
| <span class="comment">// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span> |
| <span class="comment">// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your</span> |
| <span class="comment">// option. This file may not be copied, modified, or distributed</span> |
| <span class="comment">// except according to those terms.</span> |
| |
| <span class="doccomment">//! The implementations of the `Standard` distribution for integer types.</span> |
| |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::distributions</span>::{<span class="ident">Distribution</span>, <span class="ident">Standard</span>}; |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::Rng</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>))]</span> |
| <span class="kw">use</span> <span class="ident">core::arch::x86</span>::{<span class="ident">__m128i</span>, <span class="ident">__m256i</span>}; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86_64"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>))]</span> |
| <span class="kw">use</span> <span class="ident">core::arch::x86_64</span>::{<span class="ident">__m128i</span>, <span class="ident">__m256i</span>}; |
| <span class="kw">use</span> <span class="ident">core::num</span>::{<span class="ident">NonZeroU16</span>, <span class="ident">NonZeroU32</span>, <span class="ident">NonZeroU64</span>, <span class="ident">NonZeroU8</span>, <span class="ident">NonZeroUsize</span>, |
| <span class="ident">NonZeroU128</span>}; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> <span class="kw">use</span> <span class="ident">packed_simd</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="ident">u8</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="ident">u8</span> { |
| <span class="ident">rng</span>.<span class="ident">next_u32</span>() <span class="kw">as</span> <span class="ident">u8</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="ident">u16</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="ident">u16</span> { |
| <span class="ident">rng</span>.<span class="ident">next_u32</span>() <span class="kw">as</span> <span class="ident">u16</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="ident">u32</span> { |
| <span class="ident">rng</span>.<span class="ident">next_u32</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="ident">u64</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="ident">u64</span> { |
| <span class="ident">rng</span>.<span class="ident">next_u64</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="ident">u128</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="ident">u128</span> { |
| <span class="comment">// Use LE; we explicitly generate one value before the next.</span> |
| <span class="kw">let</span> <span class="ident">x</span> <span class="op">=</span> <span class="ident">u128::from</span>(<span class="ident">rng</span>.<span class="ident">next_u64</span>()); |
| <span class="kw">let</span> <span class="ident">y</span> <span class="op">=</span> <span class="ident">u128::from</span>(<span class="ident">rng</span>.<span class="ident">next_u64</span>()); |
| (<span class="ident">y</span> <span class="op"><</span><span class="op"><</span> <span class="number">64</span>) <span class="op">|</span> <span class="ident">x</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"32"</span>, <span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"16"</span>))]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="ident">usize</span> { |
| <span class="ident">rng</span>.<span class="ident">next_u32</span>() <span class="kw">as</span> <span class="ident">usize</span> |
| } |
| |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"64"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="ident">usize</span> { |
| <span class="ident">rng</span>.<span class="ident">next_u64</span>() <span class="kw">as</span> <span class="ident">usize</span> |
| } |
| } |
| |
| <span class="macro">macro_rules!</span> <span class="ident">impl_int_from_uint</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span>:<span class="ident">ty</span>) => { |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="ident">rng</span>.<span class="ident">gen</span>::<span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">uty</span><span class="op">></span>() <span class="kw">as</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> |
| } |
| } |
| }; |
| } |
| |
| <span class="macro">impl_int_from_uint!</span> { <span class="ident">i8</span>, <span class="ident">u8</span> } |
| <span class="macro">impl_int_from_uint!</span> { <span class="ident">i16</span>, <span class="ident">u16</span> } |
| <span class="macro">impl_int_from_uint!</span> { <span class="ident">i32</span>, <span class="ident">u32</span> } |
| <span class="macro">impl_int_from_uint!</span> { <span class="ident">i64</span>, <span class="ident">u64</span> } |
| <span class="macro">impl_int_from_uint!</span> { <span class="ident">i128</span>, <span class="ident">u128</span> } |
| <span class="macro">impl_int_from_uint!</span> { <span class="ident">isize</span>, <span class="ident">usize</span> } |
| |
| <span class="macro">macro_rules!</span> <span class="ident">impl_nzint</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">new</span>:<span class="ident">path</span>) => { |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">nz</span>) <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">new</span>(<span class="ident">rng</span>.<span class="ident">gen</span>()) { |
| <span class="kw">break</span> <span class="ident">nz</span>; |
| } |
| } |
| } |
| } |
| }; |
| } |
| |
| <span class="macro">impl_nzint!</span>(<span class="ident">NonZeroU8</span>, <span class="ident">NonZeroU8::new</span>); |
| <span class="macro">impl_nzint!</span>(<span class="ident">NonZeroU16</span>, <span class="ident">NonZeroU16::new</span>); |
| <span class="macro">impl_nzint!</span>(<span class="ident">NonZeroU32</span>, <span class="ident">NonZeroU32::new</span>); |
| <span class="macro">impl_nzint!</span>(<span class="ident">NonZeroU64</span>, <span class="ident">NonZeroU64::new</span>); |
| <span class="macro">impl_nzint!</span>(<span class="ident">NonZeroU128</span>, <span class="ident">NonZeroU128::new</span>); |
| <span class="macro">impl_nzint!</span>(<span class="ident">NonZeroUsize</span>, <span class="ident">NonZeroUsize::new</span>); |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">macro_rules!</span> <span class="ident">simd_impl</span> { |
| ($((<span class="macro-nonterminal">$</span><span class="macro-nonterminal">intrinsic</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">vec</span>:<span class="ident">ty</span>),)<span class="op">+</span>) => {$( |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">intrinsic</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">intrinsic</span> { |
| <span class="macro-nonterminal">$</span><span class="macro-nonterminal">intrinsic::from_bits</span>(<span class="ident">rng</span>.<span class="ident">gen</span>::<span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">vec</span><span class="op">></span>()) |
| } |
| } |
| )<span class="op">+</span>}; |
| |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">bits</span>:<span class="ident">expr</span>,) => {}; |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">bits</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">ty</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty_more</span>:<span class="ident">ty</span>,)<span class="kw-2">*</span>) => { |
| <span class="macro">simd_impl!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">bits</span>, $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty_more</span>,)<span class="kw-2">*</span>); |
| |
| <span class="kw">impl</span> <span class="ident">Distribution</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Standard</span> { |
| <span class="attribute">#[<span class="ident">inline</span>]</span> |
| <span class="kw">fn</span> <span class="ident">sample</span><span class="op"><</span><span class="ident">R</span>: <span class="ident">Rng</span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">rng</span>: <span class="kw-2">&mut</span> <span class="ident">R</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">vec</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> <span class="op">=</span> <span class="ident">Default::default</span>(); |
| <span class="kw">unsafe</span> { |
| <span class="kw">let</span> <span class="ident">ptr</span> <span class="op">=</span> <span class="kw-2">&mut</span> <span class="ident">vec</span>; |
| <span class="kw">let</span> <span class="ident">b_ptr</span> <span class="op">=</span> <span class="kw-2">&mut</span> <span class="kw-2">*</span>(<span class="ident">ptr</span> <span class="kw">as</span> <span class="kw-2">*mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> <span class="kw">as</span> <span class="kw-2">*mut</span> [<span class="ident">u8</span>; <span class="macro-nonterminal">$</span><span class="macro-nonterminal">bits</span><span class="op">/</span><span class="number">8</span>]); |
| <span class="ident">rng</span>.<span class="ident">fill_bytes</span>(<span class="ident">b_ptr</span>); |
| } |
| <span class="ident">vec</span>.<span class="ident">to_le</span>() |
| } |
| } |
| }; |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">simd_impl!</span>(<span class="number">16</span>, <span class="ident">u8x2</span>, <span class="ident">i8x2</span>,); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">simd_impl!</span>(<span class="number">32</span>, <span class="ident">u8x4</span>, <span class="ident">i8x4</span>, <span class="ident">u16x2</span>, <span class="ident">i16x2</span>,); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">simd_impl!</span>(<span class="number">64</span>, <span class="ident">u8x8</span>, <span class="ident">i8x8</span>, <span class="ident">u16x4</span>, <span class="ident">i16x4</span>, <span class="ident">u32x2</span>, <span class="ident">i32x2</span>,); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">simd_impl!</span>(<span class="number">128</span>, <span class="ident">u8x16</span>, <span class="ident">i8x16</span>, <span class="ident">u16x8</span>, <span class="ident">i16x8</span>, <span class="ident">u32x4</span>, <span class="ident">i32x4</span>, <span class="ident">u64x2</span>, <span class="ident">i64x2</span>,); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">simd_impl!</span>(<span class="number">256</span>, <span class="ident">u8x32</span>, <span class="ident">i8x32</span>, <span class="ident">u16x16</span>, <span class="ident">i16x16</span>, <span class="ident">u32x8</span>, <span class="ident">i32x8</span>, <span class="ident">u64x4</span>, <span class="ident">i64x4</span>,); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| <span class="macro">simd_impl!</span>(<span class="number">512</span>, <span class="ident">u8x64</span>, <span class="ident">i8x64</span>, <span class="ident">u16x32</span>, <span class="ident">i16x32</span>, <span class="ident">u32x16</span>, <span class="ident">i32x16</span>, <span class="ident">u64x8</span>, <span class="ident">i64x8</span>,); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>( |
| <span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>, |
| <span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86"</span>, <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86_64"</span>) |
| ))]</span> |
| <span class="macro">simd_impl!</span>((<span class="ident">__m128i</span>, <span class="ident">u8x16</span>), (<span class="ident">__m256i</span>, <span class="ident">u8x32</span>),); |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span> |
| <span class="kw">mod</span> <span class="ident">tests</span> { |
| <span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>; |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">test_integers</span>() { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rng</span> <span class="op">=</span> <span class="ident"><span class="kw">crate</span>::test::rng</span>(<span class="number">806</span>); |
| |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">isize</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">i8</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">i16</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">i32</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">i64</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">i128</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">usize</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">u8</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">u16</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">u32</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">u64</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| <span class="ident">rng</span>.<span class="ident">sample</span>::<span class="op"><</span><span class="ident">u128</span>, <span class="kw">_</span><span class="op">></span>(<span class="ident">Standard</span>); |
| } |
| |
| <span class="attribute">#[<span class="ident">test</span>]</span> |
| <span class="kw">fn</span> <span class="ident">value_stability</span>() { |
| <span class="kw">fn</span> <span class="ident">test_samples</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Copy</span> <span class="op">+</span> <span class="ident">core::fmt::Debug</span> <span class="op">+</span> <span class="ident">PartialEq</span><span class="op">></span>(<span class="ident">zero</span>: <span class="ident">T</span>, <span class="ident">expected</span>: <span class="kw-2">&</span>[<span class="ident">T</span>]) |
| <span class="kw">where</span> <span class="ident">Standard</span>: <span class="ident">Distribution</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rng</span> <span class="op">=</span> <span class="ident"><span class="kw">crate</span>::test::rng</span>(<span class="number">807</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buf</span> <span class="op">=</span> [<span class="ident">zero</span>; <span class="number">3</span>]; |
| <span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="kw-2">&mut</span> <span class="ident">buf</span> { |
| <span class="kw-2">*</span><span class="ident">x</span> <span class="op">=</span> <span class="ident">rng</span>.<span class="ident">sample</span>(<span class="ident">Standard</span>); |
| } |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span><span class="ident">buf</span>, <span class="ident">expected</span>); |
| } |
| |
| <span class="ident">test_samples</span>(<span class="number">0u8</span>, <span class="kw-2">&</span>[<span class="number">9</span>, <span class="number">247</span>, <span class="number">111</span>]); |
| <span class="ident">test_samples</span>(<span class="number">0u16</span>, <span class="kw-2">&</span>[<span class="number">32265</span>, <span class="number">42999</span>, <span class="number">38255</span>]); |
| <span class="ident">test_samples</span>(<span class="number">0u32</span>, <span class="kw-2">&</span>[<span class="number">2220326409</span>, <span class="number">2575017975</span>, <span class="number">2018088303</span>]); |
| <span class="ident">test_samples</span>(<span class="number">0u64</span>, <span class="kw-2">&</span>[ |
| <span class="number">11059617991457472009</span>, |
| <span class="number">16096616328739788143</span>, |
| <span class="number">1487364411147516184</span>, |
| ]); |
| <span class="ident">test_samples</span>(<span class="number">0u128</span>, <span class="kw-2">&</span>[ |
| <span class="number">296930161868957086625409848350820761097</span>, |
| <span class="number">145644820879247630242265036535529306392</span>, |
| <span class="number">111087889832015897993126088499035356354</span>, |
| ]); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"32"</span>, <span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"16"</span>))]</span> |
| <span class="ident">test_samples</span>(<span class="number">0usize</span>, <span class="kw-2">&</span>[<span class="number">2220326409</span>, <span class="number">2575017975</span>, <span class="number">2018088303</span>]); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"64"</span>)]</span> |
| <span class="ident">test_samples</span>(<span class="number">0usize</span>, <span class="kw-2">&</span>[ |
| <span class="number">11059617991457472009</span>, |
| <span class="number">16096616328739788143</span>, |
| <span class="number">1487364411147516184</span>, |
| ]); |
| |
| <span class="ident">test_samples</span>(<span class="number">0i8</span>, <span class="kw-2">&</span>[<span class="number">9</span>, <span class="op">-</span><span class="number">9</span>, <span class="number">111</span>]); |
| <span class="comment">// Skip further i* types: they are simple reinterpretation of u* samples</span> |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"simd_support"</span>)]</span> |
| { |
| <span class="comment">// We only test a sub-set of types here and make assumptions about the rest.</span> |
| |
| <span class="ident">test_samples</span>(<span class="ident">u8x2::default</span>(), <span class="kw-2">&</span>[ |
| <span class="ident">u8x2::new</span>(<span class="number">9</span>, <span class="number">126</span>), |
| <span class="ident">u8x2::new</span>(<span class="number">247</span>, <span class="number">167</span>), |
| <span class="ident">u8x2::new</span>(<span class="number">111</span>, <span class="number">149</span>), |
| ]); |
| <span class="ident">test_samples</span>(<span class="ident">u8x4::default</span>(), <span class="kw-2">&</span>[ |
| <span class="ident">u8x4::new</span>(<span class="number">9</span>, <span class="number">126</span>, <span class="number">87</span>, <span class="number">132</span>), |
| <span class="ident">u8x4::new</span>(<span class="number">247</span>, <span class="number">167</span>, <span class="number">123</span>, <span class="number">153</span>), |
| <span class="ident">u8x4::new</span>(<span class="number">111</span>, <span class="number">149</span>, <span class="number">73</span>, <span class="number">120</span>), |
| ]); |
| <span class="ident">test_samples</span>(<span class="ident">u8x8::default</span>(), <span class="kw-2">&</span>[ |
| <span class="ident">u8x8::new</span>(<span class="number">9</span>, <span class="number">126</span>, <span class="number">87</span>, <span class="number">132</span>, <span class="number">247</span>, <span class="number">167</span>, <span class="number">123</span>, <span class="number">153</span>), |
| <span class="ident">u8x8::new</span>(<span class="number">111</span>, <span class="number">149</span>, <span class="number">73</span>, <span class="number">120</span>, <span class="number">68</span>, <span class="number">171</span>, <span class="number">98</span>, <span class="number">223</span>), |
| <span class="ident">u8x8::new</span>(<span class="number">24</span>, <span class="number">121</span>, <span class="number">1</span>, <span class="number">50</span>, <span class="number">13</span>, <span class="number">46</span>, <span class="number">164</span>, <span class="number">20</span>), |
| ]); |
| |
| <span class="ident">test_samples</span>(<span class="ident">i64x8::default</span>(), <span class="kw-2">&</span>[ |
| <span class="ident">i64x8::new</span>( |
| <span class="op">-</span><span class="number">7387126082252079607</span>, |
| <span class="op">-</span><span class="number">2350127744969763473</span>, |
| <span class="number">1487364411147516184</span>, |
| <span class="number">7895421560427121838</span>, |
| <span class="number">602190064936008898</span>, |
| <span class="number">6022086574635100741</span>, |
| <span class="op">-</span><span class="number">5080089175222015595</span>, |
| <span class="op">-</span><span class="number">4066367846667249123</span>, |
| ), |
| <span class="ident">i64x8::new</span>( |
| <span class="number">9180885022207963908</span>, |
| <span class="number">3095981199532211089</span>, |
| <span class="number">6586075293021332726</span>, |
| <span class="number">419343203796414657</span>, |
| <span class="number">3186951873057035255</span>, |
| <span class="number">5287129228749947252</span>, |
| <span class="number">444726432079249540</span>, |
| <span class="op">-</span><span class="number">1587028029513790706</span>, |
| ), |
| <span class="ident">i64x8::new</span>( |
| <span class="number">6075236523189346388</span>, |
| <span class="number">1351763722368165432</span>, |
| <span class="op">-</span><span class="number">6192309979959753740</span>, |
| <span class="op">-</span><span class="number">7697775502176768592</span>, |
| <span class="op">-</span><span class="number">4482022114172078123</span>, |
| <span class="number">7522501477800909500</span>, |
| <span class="op">-</span><span class="number">1837258847956201231</span>, |
| <span class="op">-</span><span class="number">586926753024886735</span>, |
| ), |
| ]); |
| } |
| } |
| } |
| </code></pre></div> |
| </section><section id="search" class="content hidden"></section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="rand" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.60.0-nightly (1bd4fdc94 2022-01-12)" ></div> |
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