| <!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/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.3/src/bigint/multiplication.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>multiplication.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="../../../num_bigint/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="../../../num_bigint/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 </span><span class="kw">super</span>::CheckedUnsignedAbs::{Negative, Positive}; |
| <span class="kw">use </span><span class="kw">super</span>::Sign::{<span class="self">self</span>, Minus, NoSign, Plus}; |
| <span class="kw">use super</span>::{BigInt, UnsignedAbs}; |
| |
| <span class="kw">use crate</span>::{IsizePromotion, UsizePromotion}; |
| |
| <span class="kw">use </span>core::iter::Product; |
| <span class="kw">use </span>core::ops::{Mul, MulAssign}; |
| <span class="kw">use </span>num_traits::{CheckedMul, One, Zero}; |
| |
| <span class="kw">impl </span>Mul<Sign> <span class="kw">for </span>Sign { |
| <span class="kw">type </span>Output = Sign; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: Sign) -> Sign { |
| <span class="kw">match </span>(<span class="self">self</span>, other) { |
| (NoSign, <span class="kw">_</span>) | (<span class="kw">_</span>, NoSign) => NoSign, |
| (Plus, Plus) | (Minus, Minus) => Plus, |
| (Plus, Minus) | (Minus, Plus) => Minus, |
| } |
| } |
| } |
| |
| <span class="macro">forward_all_binop_to_ref_ref!</span>(<span class="kw">impl </span>Mul <span class="kw">for </span>BigInt, mul); |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'b</span>> Mul<<span class="kw-2">&</span><span class="lifetime">'b </span>BigInt> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span>BigInt { |
| <span class="kw">type </span>Output = BigInt; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: <span class="kw-2">&</span>BigInt) -> BigInt { |
| BigInt::from_biguint(<span class="self">self</span>.sign * other.sign, <span class="kw-2">&</span><span class="self">self</span>.data * <span class="kw-2">&</span>other.data) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> MulAssign<<span class="kw-2">&</span><span class="lifetime">'a </span>BigInt> <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul_assign(<span class="kw-2">&mut </span><span class="self">self</span>, other: <span class="kw-2">&</span>BigInt) { |
| <span class="kw-2">*</span><span class="self">self </span>= <span class="kw-2">&*</span><span class="self">self </span>* other; |
| } |
| } |
| <span class="macro">forward_val_assign!</span>(<span class="kw">impl </span>MulAssign <span class="kw">for </span>BigInt, mul_assign); |
| |
| <span class="macro">promote_all_scalars!</span>(<span class="kw">impl </span>Mul <span class="kw">for </span>BigInt, mul); |
| <span class="macro">promote_all_scalars_assign!</span>(<span class="kw">impl </span>MulAssign <span class="kw">for </span>BigInt, mul_assign); |
| <span class="macro">forward_all_scalar_binop_to_val_val_commutative!</span>(<span class="kw">impl </span>Mul<u32> <span class="kw">for </span>BigInt, mul); |
| <span class="macro">forward_all_scalar_binop_to_val_val_commutative!</span>(<span class="kw">impl </span>Mul<u64> <span class="kw">for </span>BigInt, mul); |
| <span class="macro">forward_all_scalar_binop_to_val_val_commutative!</span>(<span class="kw">impl </span>Mul<u128> <span class="kw">for </span>BigInt, mul); |
| |
| <span class="kw">impl </span>Mul<u32> <span class="kw">for </span>BigInt { |
| <span class="kw">type </span>Output = BigInt; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: u32) -> BigInt { |
| BigInt::from_biguint(<span class="self">self</span>.sign, <span class="self">self</span>.data * other) |
| } |
| } |
| |
| <span class="kw">impl </span>MulAssign<u32> <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul_assign(<span class="kw-2">&mut </span><span class="self">self</span>, other: u32) { |
| <span class="self">self</span>.data <span class="kw-2">*</span>= other; |
| <span class="kw">if </span><span class="self">self</span>.data.is_zero() { |
| <span class="self">self</span>.sign = NoSign; |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Mul<u64> <span class="kw">for </span>BigInt { |
| <span class="kw">type </span>Output = BigInt; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: u64) -> BigInt { |
| BigInt::from_biguint(<span class="self">self</span>.sign, <span class="self">self</span>.data * other) |
| } |
| } |
| |
| <span class="kw">impl </span>MulAssign<u64> <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul_assign(<span class="kw-2">&mut </span><span class="self">self</span>, other: u64) { |
| <span class="self">self</span>.data <span class="kw-2">*</span>= other; |
| <span class="kw">if </span><span class="self">self</span>.data.is_zero() { |
| <span class="self">self</span>.sign = NoSign; |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Mul<u128> <span class="kw">for </span>BigInt { |
| <span class="kw">type </span>Output = BigInt; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: u128) -> BigInt { |
| BigInt::from_biguint(<span class="self">self</span>.sign, <span class="self">self</span>.data * other) |
| } |
| } |
| |
| <span class="kw">impl </span>MulAssign<u128> <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul_assign(<span class="kw-2">&mut </span><span class="self">self</span>, other: u128) { |
| <span class="self">self</span>.data <span class="kw-2">*</span>= other; |
| <span class="kw">if </span><span class="self">self</span>.data.is_zero() { |
| <span class="self">self</span>.sign = NoSign; |
| } |
| } |
| } |
| |
| <span class="macro">forward_all_scalar_binop_to_val_val_commutative!</span>(<span class="kw">impl </span>Mul<i32> <span class="kw">for </span>BigInt, mul); |
| <span class="macro">forward_all_scalar_binop_to_val_val_commutative!</span>(<span class="kw">impl </span>Mul<i64> <span class="kw">for </span>BigInt, mul); |
| <span class="macro">forward_all_scalar_binop_to_val_val_commutative!</span>(<span class="kw">impl </span>Mul<i128> <span class="kw">for </span>BigInt, mul); |
| |
| <span class="kw">impl </span>Mul<i32> <span class="kw">for </span>BigInt { |
| <span class="kw">type </span>Output = BigInt; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: i32) -> BigInt { |
| <span class="kw">match </span>other.checked_uabs() { |
| Positive(u) => <span class="self">self </span>* u, |
| Negative(u) => -<span class="self">self </span>* u, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>MulAssign<i32> <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul_assign(<span class="kw-2">&mut </span><span class="self">self</span>, other: i32) { |
| <span class="kw">match </span>other.checked_uabs() { |
| Positive(u) => <span class="kw-2">*</span><span class="self">self </span><span class="kw-2">*</span>= u, |
| Negative(u) => { |
| <span class="self">self</span>.sign = -<span class="self">self</span>.sign; |
| <span class="self">self</span>.data <span class="kw-2">*</span>= u; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Mul<i64> <span class="kw">for </span>BigInt { |
| <span class="kw">type </span>Output = BigInt; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: i64) -> BigInt { |
| <span class="kw">match </span>other.checked_uabs() { |
| Positive(u) => <span class="self">self </span>* u, |
| Negative(u) => -<span class="self">self </span>* u, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>MulAssign<i64> <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul_assign(<span class="kw-2">&mut </span><span class="self">self</span>, other: i64) { |
| <span class="kw">match </span>other.checked_uabs() { |
| Positive(u) => <span class="kw-2">*</span><span class="self">self </span><span class="kw-2">*</span>= u, |
| Negative(u) => { |
| <span class="self">self</span>.sign = -<span class="self">self</span>.sign; |
| <span class="self">self</span>.data <span class="kw-2">*</span>= u; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Mul<i128> <span class="kw">for </span>BigInt { |
| <span class="kw">type </span>Output = BigInt; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul(<span class="self">self</span>, other: i128) -> BigInt { |
| <span class="kw">match </span>other.checked_uabs() { |
| Positive(u) => <span class="self">self </span>* u, |
| Negative(u) => -<span class="self">self </span>* u, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>MulAssign<i128> <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>mul_assign(<span class="kw-2">&mut </span><span class="self">self</span>, other: i128) { |
| <span class="kw">match </span>other.checked_uabs() { |
| Positive(u) => <span class="kw-2">*</span><span class="self">self </span><span class="kw-2">*</span>= u, |
| Negative(u) => { |
| <span class="self">self</span>.sign = -<span class="self">self</span>.sign; |
| <span class="self">self</span>.data <span class="kw-2">*</span>= u; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>CheckedMul <span class="kw">for </span>BigInt { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>checked_mul(<span class="kw-2">&</span><span class="self">self</span>, v: <span class="kw-2">&</span>BigInt) -> <span class="prelude-ty">Option</span><BigInt> { |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.mul(v)) |
| } |
| } |
| |
| <span class="macro">impl_product_iter_type!</span>(BigInt); |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="num_bigint" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
