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<!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="API documentation for the Rust `AbsDiffEq` trait in crate `approx`."><meta name="keywords" content="rust, rustlang, rust-lang, AbsDiffEq"><title>approx::AbsDiffEq - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="../favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../approx/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><p class='location'>Trait AbsDiffEq</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#associated-types">Associated Types</a><div class="sidebar-links"><a href="#associatedtype.Epsilon">Epsilon</a></div><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.abs_diff_eq">abs_diff_eq</a><a href="#tymethod.default_epsilon">default_epsilon</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.abs_diff_ne">abs_diff_ne</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-AbsDiffEq%3C%26%27a%20T%3E-for-%26%27a%20T">&'a T</a><a href="#impl-AbsDiffEq%3C%26%27a%20mut%20T%3E-for-%26%27a%20mut%20T">&'a mut T</a><a href="#impl-AbsDiffEq%3C%5BB%5D%3E-for-%5BA%5D">[A]</a><a href="#impl-AbsDiffEq%3CCell%3CT%3E%3E-for-Cell%3CT%3E">Cell<T></a><a href="#impl-AbsDiffEq%3CRefCell%3CT%3E%3E-for-RefCell%3CT%3E">RefCell<T></a><a href="#impl-AbsDiffEq%3Cf32%3E-for-f32">f32</a><a href="#impl-AbsDiffEq%3Cf64%3E-for-f64">f64</a><a href="#impl-AbsDiffEq%3Ci16%3E-for-i16">i16</a><a href="#impl-AbsDiffEq%3Ci32%3E-for-i32">i32</a><a href="#impl-AbsDiffEq%3Ci64%3E-for-i64">i64</a><a href="#impl-AbsDiffEq%3Ci8%3E-for-i8">i8</a><a href="#impl-AbsDiffEq%3Cisize%3E-for-isize">isize</a><a href="#impl-AbsDiffEq%3Cu16%3E-for-u16">u16</a><a href="#impl-AbsDiffEq%3Cu32%3E-for-u32">u32</a><a href="#impl-AbsDiffEq%3Cu64%3E-for-u64">u64</a><a href="#impl-AbsDiffEq%3Cu8%3E-for-u8">u8</a><a href="#impl-AbsDiffEq%3Cusize%3E-for-usize">usize</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>approx</a></p><script>window.sidebarCurrent = {name: 'AbsDiffEq', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>
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type <a href='#associatedtype.Epsilon' class="type">Epsilon</a>;
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fn <a href='#tymethod.default_epsilon' class='fnname'>default_epsilon</a>() -> Self::<a class="type" href="../approx/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::AbsDiffEq::Epsilon">Epsilon</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.abs_diff_eq' class='fnname'>abs_diff_eq</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Rhs, epsilon: Self::<a class="type" href="../approx/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::AbsDiffEq::Epsilon">Epsilon</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
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fn <a href='#method.abs_diff_ne' class='fnname'>abs_diff_ne</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Rhs, epsilon: Self::<a class="type" href="../approx/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::AbsDiffEq::Epsilon">Epsilon</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> { ... }
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}</pre></div><div class='docblock'><p>Equality that is defined using the absolute difference of two numbers.</p>
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</div>
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<h2 id='associated-types' class='small-section-header'>Associated Types<a href='#associated-types' class='anchor'></a></h2><div class='methods'><h3 id='associatedtype.Epsilon' class='method'><code id='Epsilon.t'>type <a href='#associatedtype.Epsilon' class="type">Epsilon</a></code></h3><div class='docblock'><p>Used for specifying relative comparisons.</p>
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</div></div><span class='loading-content'>Loading content...</span>
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<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.default_epsilon' class='method'><code id='default_epsilon.v'>fn <a href='#tymethod.default_epsilon' class='fnname'>default_epsilon</a>() -> Self::<a class="type" href="../approx/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::AbsDiffEq::Epsilon">Epsilon</a></code></h3><div class='docblock'><p>The default tolerance to use when testing values that are close together.</p>
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<p>This is used when no <code>epsilon</code> value is supplied to the <code>abs_diff_eq!</code>, <code>relative_eq!</code>, or
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<code>ulps_eq!</code> macros.</p>
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</div><h3 id='tymethod.abs_diff_eq' class='method'><code id='abs_diff_eq.v'>fn <a href='#tymethod.abs_diff_eq' class='fnname'>abs_diff_eq</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Rhs, epsilon: Self::<a class="type" href="../approx/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::AbsDiffEq::Epsilon">Epsilon</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></h3><div class='docblock'><p>A test for equality that uses the absolute difference to compute the approximate
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equality of two numbers.</p>
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<h2 id='provided-methods' class='small-section-header'>Provided methods<a href='#provided-methods' class='anchor'></a></h2><div class='methods'><h3 id='method.abs_diff_ne' class='method'><code id='abs_diff_ne.v'>fn <a href='#method.abs_diff_ne' class='fnname'>abs_diff_ne</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Rhs, epsilon: Self::<a class="type" href="../approx/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::AbsDiffEq::Epsilon">Epsilon</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></h3><div class='docblock'><p>The inverse of <code>ApproxEq::abs_diff_eq</code>.</p>
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<h2 id='foreign-impls' class='small-section-header'>Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a></h2><h3 id='impl-AbsDiffEq%3Cu8%3E-for-u8' class='impl'><code class='in-band'>impl <a class="trait" href="../approx/trait.AbsDiffEq.html" title="trait approx::AbsDiffEq">AbsDiffEq</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a></code><a href='#impl-AbsDiffEq%3Cu8%3E-for-u8' class='anchor'></a><a class='srclink' href='../src/approx/abs_diff_eq.rs.html#37-53' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Epsilon-1' class="type"><code id='Epsilon.t-1'>type <a href='#associatedtype.Epsilon' class="type">Epsilon</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a></code></h4><h4 id='method.default_epsilon' class="method hidden"><code id='default_epsilon.v-1'>fn <a href='#method.default_epsilon' class='fnname'>default_epsilon</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a></code><a class='srclink' href='../src/approx/abs_diff_eq.rs.html#41-43' title='goto source code'>[src]</a></h4><h4 id='method.abs_diff_eq' class="method hidden"><code id='abs_diff_eq.v-1'>fn <a href='#method.abs_diff_eq' class='fnname'>abs_diff_eq</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>, epsilon: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/approx/abs_diff_eq.rs.html#46-52' title='goto source code'>[src]</a></h4></div><h3 id='impl-AbsDiffEq%3Cu16%3E-for-u16' class='impl'><code class='in-band'>impl <a class="trait" href="../approx/trait.AbsDiffEq.html" title="trait approx::AbsDiffEq">AbsDiffEq</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a></code><a href='#impl-AbsDiffEq%3Cu16%3E-for-u16' class='anchor'></a><a class='srclink' href='../src/approx/abs_diff_eq.rs.html#37-53' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Epsilon-2' class="type"><code id='Epsilon.t-2'>type <a href='#associatedtype.Epsilon' class="type">Epsilon</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a></code></h4><h4 id='method.default_epsilon-1' class="method hidden"><code id='default_epsilon.v-2'>fn <a href='#method.default_epsilon' class='fnname'>default_epsilon</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a></code><a class='srclink' href='../src/approx/abs_diff_eq.rs.html#41-43' title='goto source code'>[src]</a></h4><h4 id='method.abs_diff_eq-1' class="method hidden"><code id='abs_diff_eq.v-2'>fn <a href='#method.abs_diff_eq' class='fnname'>abs_diff_eq</a>(&self, other: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>, epsilon: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/approx/abs_diff_eq.rs.html#46-52' title='goto source code'>[src]</a></h4></div><h3 id='impl-AbsDiffEq%3Cu32%3E-for-u32' class='impl'><code class='in-band'>impl <a class="trait" href="../approx/trait.AbsDiffEq.html" title="trait approx::AbsDiffEq">AbsDiffEq</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code><a href='#impl-AbsDiffEq%3Cu32%3E-for-u32' class=
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