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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="A utility trait that provides checked conversions between decimal types inspired by `NumCast`"><title>DecimalCast in datatypes::compute - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.0-nightly (ac7f9ec7d 2026-03-20)" data-channel="nightly" data-search-js="search-63369b7b.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc trait"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">DecimalCast</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datatypes/index.html">datatypes</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Decimal<wbr>Cast</a></h2><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.from_decimal" title="from_decimal">from_decimal</a></li><li><a href="#tymethod.from_f64" title="from_f64">from_f64</a></li><li><a href="#tymethod.to_i32" title="to_i32">to_i32</a></li><li><a href="#tymethod.to_i64" title="to_i64">to_i64</a></li><li><a href="#tymethod.to_i128" title="to_i128">to_i128</a></li><li><a href="#tymethod.to_i256" title="to_i256">to_i256</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-DecimalCast-for-i32" title="i32">i32</a></li><li><a href="#impl-DecimalCast-for-i64" title="i64">i64</a></li><li><a href="#impl-DecimalCast-for-i128" title="i128">i128</a></li><li><a href="#impl-DecimalCast-for-i256" title="i256">i256</a></li></ul><h3><a href="#dyn-compatibility">Dyn Compatibility</a></h3><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In datatypes::<wbr>compute</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datatypes</a>::<wbr><a href="index.html">compute</a></div><h1>Trait <span class="trait">Decimal<wbr>Cast</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"></span></div><pre class="rust item-decl"><code>pub trait DecimalCast: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
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// Required methods
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fn <a href="#tymethod.to_i32" class="fn">to_i32</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>>;
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<span class="item-spacer"></span> fn <a href="#tymethod.to_i64" class="fn">to_i64</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>>;
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<span class="item-spacer"></span> fn <a href="#tymethod.to_i128" class="fn">to_i128</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>>;
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<span class="item-spacer"></span> fn <a href="#tymethod.to_i256" class="fn">to_i256</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256>;
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<span class="item-spacer"></span> fn <a href="#tymethod.from_decimal" class="fn">from_decimal</a><T>(n: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self>
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<span class="where">where T: <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a></span>;
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<span class="item-spacer"></span> fn <a href="#tymethod.from_f64" class="fn">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self>;
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A utility trait that provides checked conversions between
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decimal types inspired by <a href="https://docs.rs/num-traits/0.2/num_traits/cast/trait.NumCast.html" title="trait num_traits::cast::NumCast"><code>NumCast</code></a></p>
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</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.to_i32" class="method"><h4 class="code-header">fn <a href="#tymethod.to_i32" class="fn">to_i32</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></h4></section></summary><div class="docblock"><p>Convert the decimal to an i32</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.to_i64" class="method"><h4 class="code-header">fn <a href="#tymethod.to_i64" class="fn">to_i64</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></h4></section></summary><div class="docblock"><p>Convert the decimal to an i64</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.to_i128" class="method"><h4 class="code-header">fn <a href="#tymethod.to_i128" class="fn">to_i128</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>></h4></section></summary><div class="docblock"><p>Convert the decimal to an i128</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.to_i256" class="method"><h4 class="code-header">fn <a href="#tymethod.to_i256" class="fn">to_i256</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256></h4></section></summary><div class="docblock"><p>Convert the decimal to an i256</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.from_decimal" class="method"><h4 class="code-header">fn <a href="#tymethod.from_decimal" class="fn">from_decimal</a><T>(n: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self><div class="where">where
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T: <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a>,</div></h4></section></summary><div class="docblock"><p>Convert a decimal from a decimal</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.from_f64" class="method"><h4 class="code-header">fn <a href="#tymethod.from_f64" class="fn">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self></h4></section></summary><div class="docblock"><p>Convert a decimal from a f64</p>
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</div></details></div><h2 id="dyn-compatibility" class="section-header">Dyn Compatibility<a href="#dyn-compatibility" class="anchor">§</a></h2><div class="dyn-compatibility-info"><p>This trait is <b>not</b> <a href="https://doc.rust-lang.org/nightly/reference/items/traits.html#dyn-compatibility">dyn compatible</a>.</p><p><i>In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.</i></p></div><h2 id="foreign-impls" class="section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-DecimalCast-for-i32" class="impl"><a href="#impl-DecimalCast-for-i32" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></h3></section></summary><div class="impl-items"><section id="method.to_i32" class="method trait-impl"><a href="#method.to_i32" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i32</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></h4></section><section id="method.to_i64" class="method trait-impl"><a href="#method.to_i64" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i64</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></h4></section><section id="method.to_i128" class="method trait-impl"><a href="#method.to_i128" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i128</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>></h4></section><section id="method.to_i256" class="method trait-impl"><a href="#method.to_i256" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i256</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256></h4></section><section id="method.from_decimal" class="method trait-impl"><a href="#method.from_decimal" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_decimal</a><T>(n: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>><div class="where">where
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T: <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a>,</div></h4></section><section id="method.from_f64" class="method trait-impl"><a href="#method.from_f64" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-DecimalCast-for-i64" class="impl"><a href="#impl-DecimalCast-for-i64" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></h3></section></summary><div class="impl-items"><section id="method.to_i32-1" class="method trait-impl"><a href="#method.to_i32-1" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i32</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></h4></section><section id="method.to_i64-1" class="method trait-impl"><a href="#method.to_i64-1" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i64</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></h4></section><section id="method.to_i128-1" class="method trait-impl"><a href="#method.to_i128-1" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i128</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>></h4></section><section id="method.to_i256-1" class="method trait-impl"><a href="#method.to_i256-1" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i256</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256></h4></section><section id="method.from_decimal-1" class="method trait-impl"><a href="#method.from_decimal-1" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_decimal</a><T>(n: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>><div class="where">where
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T: <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a>,</div></h4></section><section id="method.from_f64-1" class="method trait-impl"><a href="#method.from_f64-1" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-DecimalCast-for-i128" class="impl"><a href="#impl-DecimalCast-for-i128" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a></h3></section></summary><div class="impl-items"><section id="method.to_i32-2" class="method trait-impl"><a href="#method.to_i32-2" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i32</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></h4></section><section id="method.to_i64-2" class="method trait-impl"><a href="#method.to_i64-2" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i64</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></h4></section><section id="method.to_i128-2" class="method trait-impl"><a href="#method.to_i128-2" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i128</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>></h4></section><section id="method.to_i256-2" class="method trait-impl"><a href="#method.to_i256-2" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i256</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256></h4></section><section id="method.from_decimal-2" class="method trait-impl"><a href="#method.from_decimal-2" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_decimal</a><T>(n: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>><div class="where">where
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T: <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a>,</div></h4></section><section id="method.from_f64-2" class="method trait-impl"><a href="#method.from_f64-2" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-DecimalCast-for-i256" class="impl"><a href="#impl-DecimalCast-for-i256" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a> for i256</h3></section></summary><div class="impl-items"><section id="method.to_i32-3" class="method trait-impl"><a href="#method.to_i32-3" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i32</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>></h4></section><section id="method.to_i64-3" class="method trait-impl"><a href="#method.to_i64-3" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i64</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>></h4></section><section id="method.to_i128-3" class="method trait-impl"><a href="#method.to_i128-3" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i128</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i128.html">i128</a>></h4></section><section id="method.to_i256-3" class="method trait-impl"><a href="#method.to_i256-3" class="anchor">§</a><h4 class="code-header">fn <a class="fn">to_i256</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256></h4></section><section id="method.from_decimal-3" class="method trait-impl"><a href="#method.from_decimal-3" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_decimal</a><T>(n: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256><div class="where">where
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T: <a class="trait" href="trait.DecimalCast.html" title="trait datatypes::compute::DecimalCast">DecimalCast</a>,</div></h4></section><section id="method.from_f64-3" class="method trait-impl"><a href="#method.from_f64-3" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from_f64</a>(n: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><i256></h4></section></div></details><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"></div><script src="../../trait.impl/arrow_cast/cast/decimal/trait.DecimalCast.js" data-ignore-extern-crates="std,arrow_buffer" async></script></section></div></main></body></html> |