| <!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/rulinalg-309246e5a94bf5cf/1ed8b93/src/matrix/mat_mul.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mat_mul.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="../../../rulinalg/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="../../../rulinalg/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 super</span>::{Matrix, MatrixSlice, MatrixSliceMut, BaseMatrix}; |
| |
| <span class="kw">use </span>std::any::{Any, TypeId}; |
| <span class="kw">use </span>std::ops::{Add, Mul}; |
| |
| <span class="kw">use </span>libnum::Zero; |
| <span class="kw">use </span>matrixmultiply; |
| |
| <span class="doccomment">/// Return `true` if `A` and `B` are the same type |
| </span><span class="kw">fn </span>same_type<A, B>() -> bool |
| <span class="kw">where </span>A: Any, |
| B: Any |
| { |
| TypeId::of::<A>() == TypeId::of::<B>() |
| } |
| |
| <span class="macro">macro_rules! </span>mat_mul_general ( |
| (<span class="macro-nonterminal">$mat</span>:ident) => ( |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="kw-2">&</span><span class="macro-nonterminal">$mat</span><T>) -> Matrix<T> { |
| <span class="macro">assert!</span>(<span class="self">self</span>.cols == m.rows, <span class="string">"Matrix dimensions do not agree."</span>); |
| |
| <span class="kw">let </span>p = <span class="self">self</span>.rows; |
| <span class="kw">let </span>q = <span class="self">self</span>.cols; |
| <span class="kw">let </span>r = m.cols; |
| |
| <span class="kw">if </span>same_type::<T, f32>() { |
| <span class="kw">let </span><span class="kw-2">mut </span>new_data = Vec::with_capacity(p * r); |
| |
| <span class="kw">unsafe </span>{ |
| new_data.set_len(p * r); |
| |
| matrixmultiply::sgemm( |
| p, q, r, |
| <span class="number">1f32</span>, |
| <span class="self">self</span>.as_ptr() <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_</span>, |
| <span class="self">self</span>.row_stride() <span class="kw">as </span>isize, <span class="number">1</span>, |
| m.as_ptr() <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_</span>, |
| m.row_stride() <span class="kw">as </span>isize, <span class="number">1</span>, |
| <span class="number">0f32</span>, |
| new_data.as_mut_ptr() <span class="kw">as </span><span class="kw-2">*mut </span><span class="kw">_</span>, |
| r <span class="kw">as </span>isize, <span class="number">1 |
| </span>); |
| } |
| |
| Matrix { |
| rows: p, |
| cols: r, |
| data: new_data |
| } |
| } <span class="kw">else if </span>same_type::<T, f64>() { |
| <span class="kw">let </span><span class="kw-2">mut </span>new_data = Vec::with_capacity(p * r); |
| |
| <span class="kw">unsafe </span>{ |
| new_data.set_len(p * r); |
| |
| matrixmultiply::dgemm( |
| p, q, r, |
| <span class="number">1f64</span>, |
| <span class="self">self</span>.as_ptr() <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_</span>, |
| <span class="self">self</span>.row_stride() <span class="kw">as </span>isize, <span class="number">1</span>, |
| m.as_ptr() <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_</span>, |
| m.row_stride() <span class="kw">as </span>isize, <span class="number">1</span>, |
| <span class="number">0f64</span>, |
| new_data.as_mut_ptr() <span class="kw">as </span><span class="kw-2">*mut </span><span class="kw">_</span>, |
| r <span class="kw">as </span>isize, <span class="number">1 |
| </span>); |
| } |
| |
| Matrix { |
| rows: p, |
| cols: r, |
| data: new_data |
| } |
| |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>new_data = <span class="macro">vec!</span>[T::zero(); p * r]; |
| |
| <span class="kw">unsafe </span>{ |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..p |
| { |
| <span class="kw">for </span>k <span class="kw">in </span><span class="number">0</span>..q |
| { |
| <span class="kw">for </span>j <span class="kw">in </span><span class="number">0</span>..r |
| { |
| new_data[i<span class="kw-2">*</span>r + j] = <span class="kw-2">*</span>new_data.get_unchecked(i<span class="kw-2">*</span>r + j) + |
| <span class="kw-2">*</span><span class="self">self</span>.get_unchecked([i,k]) * |
| <span class="kw-2">*</span>m.get_unchecked([k,j]); |
| } |
| } |
| } |
| } |
| |
| Matrix { |
| rows: <span class="self">self</span>.rows, |
| cols: m.cols, |
| data: new_data |
| } |
| } |
| } |
| |
| ); |
| ); |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, T: Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T>> Mul<Matrix<T>> <span class="kw">for </span>Matrix<T> { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: Matrix<T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'a </span>Matrix<T>> <span class="kw">for </span>Matrix<T> |
| <span class="kw">where </span>T: Any + Copy + Zero + Add<T, Output = T> + Mul<T, Output = T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="kw-2">&</span>Matrix<T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, T> Mul<Matrix<T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span>Matrix<T> |
| <span class="kw">where </span>T: Any + Copy + Zero + Add<T, Output = T> + Mul<T, Output = T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: Matrix<T>) -> Matrix<T> { |
| (<span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'b </span>Matrix<T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span>Matrix<T> |
| <span class="kw">where </span>T: Any + Copy + Zero + Add<T, Output = T> + Mul<T, Output = T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="macro">mat_mul_general!</span>(Matrix); |
| } |
| |
| <span class="macro">macro_rules! </span>impl_mat_slice_mul ( |
| (<span class="macro-nonterminal">$slice</span>:ident) => ( |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, T> Mul<<span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T>> <span class="kw">for </span>Matrix<T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="macro-nonterminal">$slice</span><T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'b </span><span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T>> <span class="kw">for </span>Matrix<T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="kw-2">&</span><span class="macro-nonterminal">$slice</span><T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, T> Mul<<span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'b </span>Matrix<T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="macro-nonterminal">$slice</span><T>) -> Matrix<T> { |
| (<span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, <span class="lifetime">'c</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'c </span><span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'b </span>Matrix<T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="macro">mat_mul_general!</span>(<span class="macro-nonterminal">$slice</span>); |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, T> Mul<Matrix<T>> <span class="kw">for </span><span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: Matrix<T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'b </span>Matrix<T>> <span class="kw">for </span><span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="kw-2">&</span>Matrix<T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, T> Mul<Matrix<T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'b </span><span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: Matrix<T>) -> Matrix<T> { |
| (<span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, <span class="lifetime">'c</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'c </span>Matrix<T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'b </span><span class="macro-nonterminal">$slice</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="macro">mat_mul_general!</span>(Matrix); |
| } |
| ); |
| ); |
| |
| <span class="macro">impl_mat_slice_mul!</span>(MatrixSlice); |
| <span class="macro">impl_mat_slice_mul!</span>(MatrixSliceMut); |
| |
| <span class="macro">macro_rules! </span>impl_slice_mul ( |
| (<span class="macro-nonterminal">$slice_1</span>:ident, <span class="macro-nonterminal">$slice_2</span>:ident) => ( |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, T> Mul<<span class="macro-nonterminal">$slice_2</span><<span class="lifetime">'b</span>, T>> <span class="kw">for </span><span class="macro-nonterminal">$slice_1</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="macro-nonterminal">$slice_2</span><T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, <span class="lifetime">'c</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'c </span><span class="macro-nonterminal">$slice_2</span><<span class="lifetime">'b</span>, T>> <span class="kw">for </span><span class="macro-nonterminal">$slice_1</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="kw-2">&</span><span class="macro-nonterminal">$slice_2</span><T>) -> Matrix<T> { |
| (<span class="kw-2">&</span><span class="self">self</span>) * (m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, <span class="lifetime">'c</span>, T> Mul<<span class="macro-nonterminal">$slice_2</span><<span class="lifetime">'b</span>, T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'c </span><span class="macro-nonterminal">$slice_1</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="kw">fn </span>mul(<span class="self">self</span>, m: <span class="macro-nonterminal">$slice_2</span><T>) -> Matrix<T> { |
| (<span class="self">self</span>) * (<span class="kw-2">&</span>m) |
| } |
| } |
| |
| <span class="doccomment">/// Multiplies two matrices together. |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>, <span class="lifetime">'c</span>, <span class="lifetime">'d</span>, T> Mul<<span class="kw-2">&</span><span class="lifetime">'d </span><span class="macro-nonterminal">$slice_2</span><<span class="lifetime">'b</span>, T>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'c </span><span class="macro-nonterminal">$slice_1</span><<span class="lifetime">'a</span>, T> |
| <span class="kw">where </span>T : Any + Copy + Zero + Add<T, Output=T> + Mul<T, Output=T> |
| { |
| <span class="kw">type </span>Output = Matrix<T>; |
| |
| <span class="macro">mat_mul_general!</span>(<span class="macro-nonterminal">$slice_2</span>); |
| } |
| ); |
| ); |
| |
| <span class="macro">impl_slice_mul!</span>(MatrixSlice, MatrixSlice); |
| <span class="macro">impl_slice_mul!</span>(MatrixSlice, MatrixSliceMut); |
| <span class="macro">impl_slice_mul!</span>(MatrixSliceMut, MatrixSlice); |
| <span class="macro">impl_slice_mul!</span>(MatrixSliceMut, MatrixSliceMut); |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span>matrix::{BaseMatrix, Matrix, MatrixSlice, MatrixSliceMut}; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>matrix_mul_f32() { |
| <span class="kw">let </span>a = <span class="macro">matrix!</span>[<span class="number">1f32</span>, <span class="number">2.</span>; |
| <span class="number">3.</span>, <span class="number">4.</span>; |
| <span class="number">5.</span>, <span class="number">6.</span>]; |
| <span class="kw">let </span>b = <span class="macro">matrix!</span>[<span class="number">1f32</span>, <span class="number">2.</span>, <span class="number">3.</span>; |
| <span class="number">4.</span>, <span class="number">5.</span>, <span class="number">6.</span>]; |
| |
| <span class="comment">// Allocating new memory |
| </span><span class="kw">let </span>c = <span class="kw-2">&</span>a * <span class="kw-2">&</span>b; |
| |
| <span class="macro">assert_eq!</span>(c.rows(), <span class="number">3</span>); |
| <span class="macro">assert_eq!</span>(c.cols(), <span class="number">3</span>); |
| |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">0</span>]], <span class="number">9.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">1</span>]], <span class="number">12.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">2</span>]], <span class="number">15.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">0</span>]], <span class="number">19.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">1</span>]], <span class="number">26.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">2</span>]], <span class="number">33.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">0</span>]], <span class="number">29.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">1</span>]], <span class="number">40.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">2</span>]], <span class="number">51.0</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>matrix_mul_f64() { |
| <span class="kw">let </span>a = <span class="macro">matrix!</span>[<span class="number">1f64</span>, <span class="number">2.</span>; |
| <span class="number">3.</span>, <span class="number">4.</span>; |
| <span class="number">5.</span>, <span class="number">6.</span>]; |
| <span class="kw">let </span>b = <span class="macro">matrix!</span>[<span class="number">1f64</span>, <span class="number">2.</span>, <span class="number">3.</span>; |
| <span class="number">4.</span>, <span class="number">5.</span>, <span class="number">6.</span>]; |
| |
| <span class="comment">// Allocating new memory |
| </span><span class="kw">let </span>c = <span class="kw-2">&</span>a * <span class="kw-2">&</span>b; |
| |
| <span class="macro">assert_eq!</span>(c.rows(), <span class="number">3</span>); |
| <span class="macro">assert_eq!</span>(c.cols(), <span class="number">3</span>); |
| |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">0</span>]], <span class="number">9.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">1</span>]], <span class="number">12.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">2</span>]], <span class="number">15.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">0</span>]], <span class="number">19.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">1</span>]], <span class="number">26.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">2</span>]], <span class="number">33.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">0</span>]], <span class="number">29.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">1</span>]], <span class="number">40.0</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">2</span>]], <span class="number">51.0</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>matrix_mul_usize() { |
| <span class="kw">let </span>a = <span class="macro">matrix!</span>[<span class="number">1usize</span>, <span class="number">2</span>; |
| <span class="number">3</span>, <span class="number">4</span>; |
| <span class="number">5</span>, <span class="number">6</span>]; |
| <span class="kw">let </span>b = <span class="macro">matrix!</span>[<span class="number">1usize</span>, <span class="number">2</span>, <span class="number">3</span>; |
| <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>]; |
| |
| <span class="comment">// Allocating new memory |
| </span><span class="kw">let </span>c = <span class="kw-2">&</span>a * <span class="kw-2">&</span>b; |
| |
| <span class="macro">assert_eq!</span>(c.rows(), <span class="number">3</span>); |
| <span class="macro">assert_eq!</span>(c.cols(), <span class="number">3</span>); |
| |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">0</span>]], <span class="number">9</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">1</span>]], <span class="number">12</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">0</span>, <span class="number">2</span>]], <span class="number">15</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">0</span>]], <span class="number">19</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">1</span>]], <span class="number">26</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">1</span>, <span class="number">2</span>]], <span class="number">33</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">0</span>]], <span class="number">29</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">1</span>]], <span class="number">40</span>); |
| <span class="macro">assert_eq!</span>(c[[<span class="number">2</span>, <span class="number">2</span>]], <span class="number">51</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>mul_slice_basic() { |
| <span class="kw">let </span>a = <span class="number">3.0</span>; |
| <span class="kw">let </span>b = Matrix::ones(<span class="number">2</span>, <span class="number">2</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>c = Matrix::ones(<span class="number">3</span>, <span class="number">3</span>) * <span class="number">2.</span>; |
| { |
| <span class="kw">let </span>d = MatrixSlice::from_matrix(<span class="kw-2">&</span>c, [<span class="number">1</span>, <span class="number">1</span>], <span class="number">2</span>, <span class="number">2</span>); |
| |
| <span class="kw">let </span>m_1 = <span class="kw-2">&</span>d * a.clone(); |
| <span class="macro">assert_eq!</span>(m_1.into_vec(), <span class="macro">vec!</span>[<span class="number">6.0</span>; <span class="number">4</span>]); |
| |
| <span class="kw">let </span>m_2 = <span class="kw-2">&</span>d * b.clone(); |
| <span class="macro">assert_eq!</span>(m_2.into_vec(), <span class="macro">vec!</span>[<span class="number">4.0</span>; <span class="number">4</span>]); |
| |
| <span class="kw">let </span>m_3 = <span class="kw-2">&</span>d * <span class="kw-2">&</span>d; |
| <span class="macro">assert_eq!</span>(m_3.into_vec(), <span class="macro">vec!</span>[<span class="number">8.0</span>; <span class="number">4</span>]); |
| } |
| |
| <span class="kw">let </span>e = MatrixSliceMut::from_matrix(<span class="kw-2">&mut </span>c, [<span class="number">1</span>, <span class="number">1</span>], <span class="number">2</span>, <span class="number">2</span>); |
| |
| <span class="kw">let </span>m_1 = <span class="kw-2">&</span>e * a; |
| <span class="macro">assert_eq!</span>(m_1.into_vec(), <span class="macro">vec!</span>[<span class="number">6.0</span>; <span class="number">4</span>]); |
| |
| <span class="kw">let </span>m_2 = <span class="kw-2">&</span>e * b; |
| <span class="macro">assert_eq!</span>(m_2.into_vec(), <span class="macro">vec!</span>[<span class="number">4.0</span>; <span class="number">4</span>]); |
| |
| <span class="kw">let </span>m_3 = <span class="kw-2">&</span>e * <span class="kw-2">&</span>e; |
| <span class="macro">assert_eq!</span>(m_3.into_vec(), <span class="macro">vec!</span>[<span class="number">8.0</span>; <span class="number">4</span>]); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>mul_slice_uneven_data() { |
| <span class="kw">let </span>a = <span class="macro">matrix!</span>[<span class="number">1.0</span>, <span class="number">2.0</span>; <span class="number">3.0</span>, <span class="number">4.0</span>]; |
| |
| <span class="kw">let </span>c = <span class="macro">matrix!</span>[<span class="number">1.0</span>, <span class="number">2.0</span>, <span class="number">3.0</span>; |
| <span class="number">4.0</span>, <span class="number">5.0</span>, <span class="number">6.0</span>]; |
| <span class="kw">let </span>d = MatrixSlice::from_matrix(<span class="kw-2">&</span>c, [<span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>, <span class="number">2</span>); |
| |
| <span class="kw">let </span>e = d * a; |
| |
| <span class="macro">assert_eq!</span>(e[[<span class="number">0</span>, <span class="number">0</span>]], <span class="number">7.0</span>); |
| <span class="macro">assert_eq!</span>(e[[<span class="number">0</span>, <span class="number">1</span>]], <span class="number">10.0</span>); |
| <span class="macro">assert_eq!</span>(e[[<span class="number">1</span>, <span class="number">0</span>]], <span class="number">19.0</span>); |
| <span class="macro">assert_eq!</span>(e[[<span class="number">1</span>, <span class="number">1</span>]], <span class="number">28.0</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>mul_slice_uneven_data_usize() { |
| <span class="kw">let </span>a = <span class="macro">matrix!</span>[<span class="number">1usize</span>, <span class="number">2</span>; <span class="number">3</span>, <span class="number">4</span>]; |
| |
| <span class="kw">let </span>c = <span class="macro">matrix!</span>[<span class="number">1usize</span>, <span class="number">2</span>, <span class="number">3</span>; <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>]; |
| <span class="kw">let </span>d = MatrixSlice::from_matrix(<span class="kw-2">&</span>c, [<span class="number">0</span>, <span class="number">0</span>], <span class="number">2</span>, <span class="number">2</span>); |
| |
| <span class="kw">let </span>e = d * a; |
| |
| <span class="macro">assert_eq!</span>(e[[<span class="number">0</span>, <span class="number">0</span>]], <span class="number">7</span>); |
| <span class="macro">assert_eq!</span>(e[[<span class="number">0</span>, <span class="number">1</span>]], <span class="number">10</span>); |
| <span class="macro">assert_eq!</span>(e[[<span class="number">1</span>, <span class="number">0</span>]], <span class="number">19</span>); |
| <span class="macro">assert_eq!</span>(e[[<span class="number">1</span>, <span class="number">1</span>]], <span class="number">28</span>); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="rulinalg" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |