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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 small and `no_std` compatible error type"><meta name="keywords" content="rust, rustlang, rust-lang, Error"><title>Error in getrandom - Rust</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="sidebar-items.js"></script><script defer src="../main.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="icon" href="https://www.rust-lang.org/favicon.ico"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button><a class="sidebar-logo" href="../getrandom/index.html"><div class="logo-container"><img src="https://www.rust-lang.org/logos/rust-logo-128x128-blk.png" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../getrandom/index.html"><div class="logo-container">
<img src="https://www.rust-lang.org/logos/rust-logo-128x128-blk.png" alt="logo"></div></a><h2 class="location"><a href="#">Error</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Associated Constants</a></h3><ul class="block"><li><a href="#associatedconstant.CUSTOM_START">CUSTOM_START</a></li><li><a href="#associatedconstant.ERRNO_NOT_POSITIVE">ERRNO_NOT_POSITIVE</a></li><li><a href="#associatedconstant.FAILED_RDRAND">FAILED_RDRAND</a></li><li><a href="#associatedconstant.INTERNAL_START">INTERNAL_START</a></li><li><a href="#associatedconstant.IOS_SEC_RANDOM">IOS_SEC_RANDOM</a></li><li><a href="#associatedconstant.NODE_CRYPTO">NODE_CRYPTO</a></li><li><a href="#associatedconstant.NODE_ES_MODULE">NODE_ES_MODULE</a></li><li><a href="#associatedconstant.NODE_RANDOM_FILL_SYNC">NODE_RANDOM_FILL_SYNC</a></li><li><a href="#associatedconstant.NO_RDRAND">NO_RDRAND</a></li><li><a href="#associatedconstant.UNSUPPORTED">UNSUPPORTED</a></li><li><a href="#associatedconstant.VXWORKS_RAND_SECURE">VXWORKS_RAND_SECURE</a></li><li><a href="#associatedconstant.WEB_CRYPTO">WEB_CRYPTO</a></li><li><a href="#associatedconstant.WEB_GET_RANDOM_VALUES">WEB_GET_RANDOM_VALUES</a></li><li><a href="#associatedconstant.WINDOWS_RTL_GEN_RANDOM">WINDOWS_RTL_GEN_RANDOM</a></li></ul><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.code">code</a></li><li><a href="#method.raw_os_error">raw_os_error</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Clone-for-Error">Clone</a></li><li><a href="#impl-Copy-for-Error">Copy</a></li><li><a href="#impl-Debug-for-Error">Debug</a></li><li><a href="#impl-Display-for-Error">Display</a></li><li><a href="#impl-Eq-for-Error">Eq</a></li><li><a href="#impl-Error-for-Error">Error</a></li><li><a href="#impl-From%3CError%3E-for-Error">From&lt;Error&gt;</a></li><li><a href="#impl-From%3CNonZeroU32%3E-for-Error">From&lt;NonZeroU32&gt;</a></li><li><a href="#impl-PartialEq%3CError%3E-for-Error">PartialEq&lt;Error&gt;</a></li><li><a href="#impl-StructuralEq-for-Error">StructuralEq</a></li><li><a href="#impl-StructuralPartialEq-for-Error">StructuralPartialEq</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-Error">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Error">Send</a></li><li><a href="#impl-Sync-for-Error">Sync</a></li><li><a href="#impl-Unpin-for-Error">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Error">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-Error">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-Error">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-Error">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-Error">From&lt;T&gt;</a></li><li><a href="#impl-Into%3CU%3E-for-Error">Into&lt;U&gt;</a></li><li><a href="#impl-Provider-for-Error">Provider</a></li><li><a href="#impl-ToOwned-for-Error">ToOwned</a></li><li><a href="#impl-ToString-for-Error">ToString</a></li><li><a href="#impl-TryFrom%3CU%3E-for-Error">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-Error">TryInto&lt;U&gt;</a></li></ul></section><h2><a href="index.html">In getrandom</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><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="main-heading"><h1 class="fqn">Struct <a href="index.html">getrandom</a>::<wbr><a class="struct" href="#">Error</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../src/getrandom/error.rs.html#25">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct Error(_);</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A small and <code>no_std</code> compatible error type</p>
<p>The <a href="struct.Error.html#method.raw_os_error" title="Error::raw_os_error()"><code>Error::raw_os_error()</code></a> will indicate if the error is from the OS, and
if so, which error code the OS gave the application. If such an error is
encountered, please consult with your system documentation.</p>
<p>Internally this type is a NonZeroU32, with certain values reserved for
certain purposes, see <a href="struct.Error.html#associatedconstant.INTERNAL_START" title="Error::INTERNAL_START"><code>Error::INTERNAL_START</code></a> and <a href="struct.Error.html#associatedconstant.CUSTOM_START" title="Error::CUSTOM_START"><code>Error::CUSTOM_START</code></a>.</p>
<p><em>If this crate’s <code>&quot;std&quot;</code> Cargo feature is enabled</em>, then:</p>
<ul>
<li><a href="struct.Error.html" title="Error"><code>getrandom::Error</code></a> implements
<a href="https://doc.rust-lang.org/std/error/trait.Error.html"><code>std::error::Error</code></a></li>
<li><a href="https://doc.rust-lang.org/std/io/struct.Error.html"><code>std::io::Error</code></a> implements
<a href="https://doc.rust-lang.org/std/convert/trait.From.html"><code>From&lt;getrandom::Error&gt;</code></a>.</li>
</ul>
</div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#33-100">source</a><a href="#impl-Error" class="anchor"></a><h3 class="code-header">impl <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedconstant.UNSUPPORTED" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#35">source</a><h4 class="code-header">pub const <a href="#associatedconstant.UNSUPPORTED" class="constant">UNSUPPORTED</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>This target/platform is not supported by <code>getrandom</code>.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.ERRNO_NOT_POSITIVE" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#37">source</a><h4 class="code-header">pub const <a href="#associatedconstant.ERRNO_NOT_POSITIVE" class="constant">ERRNO_NOT_POSITIVE</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>The platform-specific <code>errno</code> returned a non-positive value.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.IOS_SEC_RANDOM" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#39">source</a><h4 class="code-header">pub const <a href="#associatedconstant.IOS_SEC_RANDOM" class="constant">IOS_SEC_RANDOM</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>Call to iOS <a href="https://developer.apple.com/documentation/security/1399291-secrandomcopybytes"><code>SecRandomCopyBytes</code></a> failed.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.WINDOWS_RTL_GEN_RANDOM" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#41">source</a><h4 class="code-header">pub const <a href="#associatedconstant.WINDOWS_RTL_GEN_RANDOM" class="constant">WINDOWS_RTL_GEN_RANDOM</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>Call to Windows <a href="https://docs.microsoft.com/en-us/windows/win32/api/ntsecapi/nf-ntsecapi-rtlgenrandom"><code>RtlGenRandom</code></a> failed.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.FAILED_RDRAND" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#43">source</a><h4 class="code-header">pub const <a href="#associatedconstant.FAILED_RDRAND" class="constant">FAILED_RDRAND</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>RDRAND instruction failed due to a hardware issue.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.NO_RDRAND" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#45">source</a><h4 class="code-header">pub const <a href="#associatedconstant.NO_RDRAND" class="constant">NO_RDRAND</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>RDRAND instruction unsupported on this target.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.WEB_CRYPTO" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#47">source</a><h4 class="code-header">pub const <a href="#associatedconstant.WEB_CRYPTO" class="constant">WEB_CRYPTO</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>The environment does not support the Web Crypto API.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.WEB_GET_RANDOM_VALUES" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#49">source</a><h4 class="code-header">pub const <a href="#associatedconstant.WEB_GET_RANDOM_VALUES" class="constant">WEB_GET_RANDOM_VALUES</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>Calling Web Crypto API <code>crypto.getRandomValues</code> failed.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.VXWORKS_RAND_SECURE" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#51">source</a><h4 class="code-header">pub const <a href="#associatedconstant.VXWORKS_RAND_SECURE" class="constant">VXWORKS_RAND_SECURE</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>On VxWorks, call to <code>randSecure</code> failed (random number generator is not yet initialized).</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.NODE_CRYPTO" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#53">source</a><h4 class="code-header">pub const <a href="#associatedconstant.NODE_CRYPTO" class="constant">NODE_CRYPTO</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>Node.js does not have the <code>crypto</code> CommonJS module.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.NODE_RANDOM_FILL_SYNC" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#55">source</a><h4 class="code-header">pub const <a href="#associatedconstant.NODE_RANDOM_FILL_SYNC" class="constant">NODE_RANDOM_FILL_SYNC</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>Calling Node.js function <code>crypto.randomFillSync</code> failed.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.NODE_ES_MODULE" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#58">source</a><h4 class="code-header">pub const <a href="#associatedconstant.NODE_ES_MODULE" class="constant">NODE_ES_MODULE</a>: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a> = _</h4></section></summary><div class="docblock"><p>Called from an ES module on Node.js. This is unsupported, see:
<a href="https://docs.rs/getrandom#nodejs-es-module-support">https://docs.rs/getrandom#nodejs-es-module-support</a>.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.INTERNAL_START" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#63">source</a><h4 class="code-header">pub const <a href="#associatedconstant.INTERNAL_START" class="constant">INTERNAL_START</a>: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a> = 2_147_483_648u32</h4></section></summary><div class="docblock"><p>Codes below this point represent OS Errors (i.e. positive i32 values).
Codes at or above this point, but below <a href="struct.Error.html#associatedconstant.CUSTOM_START" title="Error::CUSTOM_START"><code>Error::CUSTOM_START</code></a> are
reserved for use by the <code>rand</code> and <code>getrandom</code> crates.</p>
</div></details><details class="rustdoc-toggle" open><summary><section id="associatedconstant.CUSTOM_START" class="associatedconstant has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#67">source</a><h4 class="code-header">pub const <a href="#associatedconstant.CUSTOM_START" class="constant">CUSTOM_START</a>: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a> = 3_221_225_472u32</h4></section></summary><div class="docblock"><p>Codes at or above this point can be used by users to define their own
custom errors.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.raw_os_error" class="method has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#77-90">source</a><h4 class="code-header">pub fn <a href="#method.raw_os_error" class="fnname">raw_os_error</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>&gt;</h4></section></summary><div class="docblock"><p>Extract the raw OS error code (if this error came from the OS)</p>
<p>This method is identical to <a href="https://doc.rust-lang.org/std/io/struct.Error.html#method.raw_os_error"><code>std::io::Error::raw_os_error()</code></a>, except
that it works in <code>no_std</code> contexts. If this method returns <code>None</code>, the
error value can still be formatted via the <code>Display</code> implementation.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.code" class="method has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#97-99">source</a><h4 class="code-header">pub const fn <a href="#method.code" class="fnname">code</a>(self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/nonzero/struct.NonZeroU32.html" title="struct core::num::nonzero::NonZeroU32">NonZeroU32</a></h4></section></summary><div class="docblock"><p>Extract the bare error code.</p>
<p>This code can either come from the underlying OS, or be a custom error.
Use <a href="struct.Error.html#method.raw_os_error" title="Error::raw_os_error()"><code>Error::raw_os_error()</code></a> to disambiguate.</p>
</div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Clone-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#impl-Clone-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&amp;self) -&gt; <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/clone.rs.html#132-134">source</a></span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">const fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&amp;mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Self)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#122-139">source</a><a href="#impl-Debug-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#123-138">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Display-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#141-155">source</a><a href="#impl-Display-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#142-154">source</a><a href="#method.fmt-1" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt" class="fnname">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Error-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error_impls.rs.html#24">source</a><a href="#impl-Error-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html" title="trait core::error::Error">Error</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.source" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.30.0">1.30.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#83">source</a></span><a href="#method.source" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html#method.source" class="fnname">source</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;(dyn <a class="trait" href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html" title="trait core::error::Error">Error</a> + 'static)&gt;</h4></section></summary><div class='docblock'>The lower-level source of this error, if any. <a href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html#method.source">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.description" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#109">source</a></span><a href="#method.description" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html#method.description" class="fnname">description</a>(&amp;self) -&gt; &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></h4></section></summary><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 1.42.0: use the Display impl or to_string()</span></div></span><div class='docblock'> <a href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html#method.description">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.cause" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#119">source</a></span><a href="#method.cause" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html#method.cause" class="fnname">cause</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;dyn <a class="trait" href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html" title="trait core::error::Error">Error</a>&gt;</h4></section></summary><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 1.33.0: replaced by Error::source, which can support downcasting</span></div></span></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.provide" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#193">source</a><a href="#method.provide" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html#method.provide" class="fnname">provide</a>(&amp;'a self, demand: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.Demand.html" title="struct core::any::Demand">Demand</a>&lt;'a&gt;)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>error_generic_member_access</code>)</span></div></span><div class='docblock'>Provides type based access to context intended for error reports. <a href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html#method.provide">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-From%3CError%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error_impls.rs.html#15-22">source</a><a href="#impl-From%3CError%3E-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a>&gt; for <a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error_impls.rs.html#16-21">source</a><a href="#method.from-1" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(err: <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a>) -&gt; Self</h4></section></summary><div class='docblock'>Converts to this type from the input type.</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-From%3CNonZeroU32%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#157-161">source</a><a href="#impl-From%3CNonZeroU32%3E-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/core/num/nonzero/struct.NonZeroU32.html" title="struct core::num::nonzero::NonZeroU32">NonZeroU32</a>&gt; for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#158-160">source</a><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(code: <a class="struct" href="https://doc.rust-lang.org/nightly/core/num/nonzero/struct.NonZeroU32.html" title="struct core::num::nonzero::NonZeroU32">NonZeroU32</a>) -&gt; Self</h4></section></summary><div class='docblock'>Converts to this type from the input type.</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CError%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#impl-PartialEq%3CError%3E-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;<a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a>&gt; for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#method.eq" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq" class="fnname">eq</a>(&amp;self, other: &amp;<a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used
by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#227">source</a></span><a href="#method.ne" class="anchor"></a><h4 class="code-header">const fn <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne" class="fnname">ne</a>(&amp;self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Rhs) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
sufficient, and should not be overridden without very good reason. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne">Read more</a></div></details></div></details><section id="impl-Copy-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#impl-Copy-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section><section id="impl-Eq-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#impl-Eq-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section><section id="impl-StructuralEq-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#impl-StructuralEq-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.StructuralEq.html" title="trait core::marker::StructuralEq">StructuralEq</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section><section id="impl-StructuralPartialEq-for-Error" class="impl has-srclink"><a class="srclink rightside" href="../src/getrandom/error.rs.html#24">source</a><a href="#impl-StructuralPartialEq-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.StructuralPartialEq.html" title="trait core::marker::StructuralPartialEq">StructuralPartialEq</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Error" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section><section id="impl-Send-for-Error" class="impl has-srclink"><a href="#impl-Send-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section><section id="impl-Sync-for-Error" class="impl has-srclink"><a href="#impl-Sync-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section><section id="impl-Unpin-for-Error" class="impl has-srclink"><a href="#impl-Unpin-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section><section id="impl-UnwindSafe-for-Error" class="impl has-srclink"><a href="#impl-UnwindSafe-for-Error" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Error.html" title="struct getrandom::Error">Error</a></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#200">source</a><a href="#impl-Any-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#201">source</a><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#211">source</a><a href="#impl-Borrow%3CT%3E-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213">source</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220">source</a><a href="#impl-BorrowMut%3CT%3E-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221">source</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#733">source</a><a href="#impl-From%3CT%3E-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from-2" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#736">source</a></span><a href="#method.from-2" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#717">source</a><a href="#impl-Into%3CU%3E-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#725">source</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Provider-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#197">source</a><a href="#impl-Provider-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;E&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Provider.html" title="trait core::any::Provider">Provider</a> for E<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;E: <a class="trait" href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html" title="trait core::error::Error">Error</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.provide-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#201">source</a><a href="#method.provide-1" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Provider.html#tymethod.provide" class="fnname">provide</a>(&amp;'a self, demand: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.Demand.html" title="struct core::any::Demand">Demand</a>&lt;'a&gt;)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>provide_any</code>)</span></div></span><div class='docblock'>Data providers should implement this method to provide <em>all</em> values they are able to
provide by using <code>demand</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Provider.html#tymethod.provide">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#83">source</a><a href="#impl-ToOwned-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Owned" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&amp;self) -&gt; T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&amp;self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToString-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2497">source</a><a href="#impl-ToString-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_string" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2503">source</a><a href="#method.to_string" class="anchor"></a><h4 class="code-header">default fn <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string" class="fnname">to_string</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></h4></section></summary><div class='docblock'>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#775">source</a><a href="#impl-TryFrom%3CU%3E-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#781">source</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-Error" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#760">source</a><a href="#impl-TryInto%3CU%3E-for-Error" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#766">source</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../" data-current-crate="getrandom" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>