<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/Users/m018/.cargo/registry/src/github.com-1ecc6299db9ec823/iana-time-zone-0.1.57/src/lib.rs`."><title>lib.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-c4dbdcde0fbd8430.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../static.files/light-db279b6232be9c13.css"><link rel="stylesheet" disabled href="../../static.files/dark-cf923f49f397b216.css"><link rel="stylesheet" disabled href="../../static.files/ayu-be46fdc453a55015.css"><script src="../../static.files/storage-3891ce972e3a2bf8.js"></script><script defer src="../../static.files/source-script-1b95b7cca98b26e5.js"></script><script defer src="../../source-files.js"></script><script defer src="../../static.files/main-98a684e84ae5b08b.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"></nav><main><nav class="sub"><a class="sub-logo-container" href="../../iana_time_zone/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><span></span><input class="search-input" name="search" aria-label="Run search in the documentation" 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="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><a href="#1" id="1">1</a>
<a href="#2" id="2">2</a>
<a href="#3" id="3">3</a>
<a href="#4" id="4">4</a>
<a href="#5" id="5">5</a>
<a href="#6" id="6">6</a>
<a href="#7" id="7">7</a>
<a href="#8" id="8">8</a>
<a href="#9" id="9">9</a>
<a href="#10" id="10">10</a>
<a href="#11" id="11">11</a>
<a href="#12" id="12">12</a>
<a href="#13" id="13">13</a>
<a href="#14" id="14">14</a>
<a href="#15" id="15">15</a>
<a href="#16" id="16">16</a>
<a href="#17" id="17">17</a>
<a href="#18" id="18">18</a>
<a href="#19" id="19">19</a>
<a href="#20" id="20">20</a>
<a href="#21" id="21">21</a>
<a href="#22" id="22">22</a>
<a href="#23" id="23">23</a>
<a href="#24" id="24">24</a>
<a href="#25" id="25">25</a>
<a href="#26" id="26">26</a>
<a href="#27" id="27">27</a>
<a href="#28" id="28">28</a>
<a href="#29" id="29">29</a>
<a href="#30" id="30">30</a>
<a href="#31" id="31">31</a>
<a href="#32" id="32">32</a>
<a href="#33" id="33">33</a>
<a href="#34" id="34">34</a>
<a href="#35" id="35">35</a>
<a href="#36" id="36">36</a>
<a href="#37" id="37">37</a>
<a href="#38" id="38">38</a>
<a href="#39" id="39">39</a>
<a href="#40" id="40">40</a>
<a href="#41" id="41">41</a>
<a href="#42" id="42">42</a>
<a href="#43" id="43">43</a>
<a href="#44" id="44">44</a>
<a href="#45" id="45">45</a>
<a href="#46" id="46">46</a>
<a href="#47" id="47">47</a>
<a href="#48" id="48">48</a>
<a href="#49" id="49">49</a>
<a href="#50" id="50">50</a>
<a href="#51" id="51">51</a>
<a href="#52" id="52">52</a>
<a href="#53" id="53">53</a>
<a href="#54" id="54">54</a>
<a href="#55" id="55">55</a>
<a href="#56" id="56">56</a>
<a href="#57" id="57">57</a>
<a href="#58" id="58">58</a>
<a href="#59" id="59">59</a>
<a href="#60" id="60">60</a>
<a href="#61" id="61">61</a>
<a href="#62" id="62">62</a>
<a href="#63" id="63">63</a>
<a href="#64" id="64">64</a>
<a href="#65" id="65">65</a>
<a href="#66" id="66">66</a>
<a href="#67" id="67">67</a>
<a href="#68" id="68">68</a>
<a href="#69" id="69">69</a>
<a href="#70" id="70">70</a>
<a href="#71" id="71">71</a>
<a href="#72" id="72">72</a>
<a href="#73" id="73">73</a>
<a href="#74" id="74">74</a>
<a href="#75" id="75">75</a>
<a href="#76" id="76">76</a>
<a href="#77" id="77">77</a>
<a href="#78" id="78">78</a>
<a href="#79" id="79">79</a>
<a href="#80" id="80">80</a>
<a href="#81" id="81">81</a>
<a href="#82" id="82">82</a>
<a href="#83" id="83">83</a>
<a href="#84" id="84">84</a>
<a href="#85" id="85">85</a>
<a href="#86" id="86">86</a>
<a href="#87" id="87">87</a>
<a href="#88" id="88">88</a>
<a href="#89" id="89">89</a>
<a href="#90" id="90">90</a>
<a href="#91" id="91">91</a>
<a href="#92" id="92">92</a>
<a href="#93" id="93">93</a>
<a href="#94" id="94">94</a>
<a href="#95" id="95">95</a>
<a href="#96" id="96">96</a>
<a href="#97" id="97">97</a>
<a href="#98" id="98">98</a>
<a href="#99" id="99">99</a>
<a href="#100" id="100">100</a>
<a href="#101" id="101">101</a>
<a href="#102" id="102">102</a>
<a href="#103" id="103">103</a>
<a href="#104" id="104">104</a>
<a href="#105" id="105">105</a>
<a href="#106" id="106">106</a>
<a href="#107" id="107">107</a>
<a href="#108" id="108">108</a>
<a href="#109" id="109">109</a>
<a href="#110" id="110">110</a>
<a href="#111" id="111">111</a>
<a href="#112" id="112">112</a>
<a href="#113" id="113">113</a>
</pre><pre class="rust"><code><span class="attr">#![warn(clippy::all)]
#![warn(clippy::cargo)]
#![warn(clippy::undocumented_unsafe_blocks)]
#![allow(unknown_lints)]
#![warn(missing_copy_implementations)]
#![warn(missing_debug_implementations)]
#![warn(missing_docs)]
#![warn(rust_2018_idioms)]
#![warn(trivial_casts, trivial_numeric_casts)]
#![warn(unused_qualifications)]
#![warn(variant_size_differences)]
</span><span class="doccomment">//! get the IANA time zone for the current system
//!
//! This small utility crate provides the
//! [`get_timezone()`](fn.get_timezone.html) function.
//!
//! ```rust
//! // Get the current time zone as a string.
//! let tz_str = iana_time_zone::get_timezone()?;
//! println!("The current time zone is: {}", tz_str);
//! # Ok::<(), iana_time_zone::GetTimezoneError>(())
//! ```
//!
//! The resulting string can be parsed to a
//! [`chrono-tz::Tz`](https://docs.rs/chrono-tz/latest/chrono_tz/enum.Tz.html)
//! variant like this:
//! ```ignore
//! let tz_str = iana_time_zone::get_timezone()?;
//! let tz: chrono_tz::Tz = tz_str.parse()?;
//! ```
</span><span class="attr">#[allow(dead_code)]
</span><span class="kw">mod </span>ffi_utils;
<span class="attr">#[cfg_attr(target_os = <span class="string">"linux"</span>, path = <span class="string">"tz_linux.rs"</span>)]
#[cfg_attr(target_os = <span class="string">"windows"</span>, path = <span class="string">"tz_windows.rs"</span>)]
#[cfg_attr(any(target_os = <span class="string">"macos"</span>, target_os = <span class="string">"ios"</span>), path = <span class="string">"tz_macos.rs"</span>)]
#[cfg_attr(
all(target_arch = <span class="string">"wasm32"</span>, not(target_os = <span class="string">"wasi"</span>)),
path = <span class="string">"tz_wasm32.rs"
</span>)]
#[cfg_attr(
any(target_os = <span class="string">"freebsd"</span>, target_os = <span class="string">"dragonfly"</span>),
path = <span class="string">"tz_freebsd.rs"
</span>)]
#[cfg_attr(
any(target_os = <span class="string">"netbsd"</span>, target_os = <span class="string">"openbsd"</span>),
path = <span class="string">"tz_netbsd.rs"
</span>)]
#[cfg_attr(
any(target_os = <span class="string">"illumos"</span>, target_os = <span class="string">"solaris"</span>),
path = <span class="string">"tz_illumos.rs"
</span>)]
#[cfg_attr(target_os = <span class="string">"android"</span>, path = <span class="string">"tz_android.rs"</span>)]
#[cfg_attr(target_os = <span class="string">"haiku"</span>, path = <span class="string">"tz_haiku.rs"</span>)]
</span><span class="kw">mod </span>platform;
<span class="doccomment">/// Error types
</span><span class="attr">#[derive(Debug)]
</span><span class="kw">pub enum </span>GetTimezoneError {
<span class="doccomment">/// Failed to parse
</span>FailedParsingString,
<span class="doccomment">/// Wrapped IO error
</span>IoError(std::io::Error),
<span class="doccomment">/// Platform-specific error from the operating system
</span>OsError,
}
<span class="kw">impl </span>std::error::Error <span class="kw">for </span>GetTimezoneError {
<span class="kw">fn </span>source(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>)> {
<span class="kw">match </span><span class="self">self </span>{
GetTimezoneError::FailedParsingString => <span class="prelude-val">None</span>,
GetTimezoneError::IoError(err) => <span class="prelude-val">Some</span>(err),
GetTimezoneError::OsError => <span class="prelude-val">None</span>,
}
}
}
<span class="kw">impl </span>std::fmt::Display <span class="kw">for </span>GetTimezoneError {
<span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>std::fmt::Formatter<<span class="lifetime">'_</span>>) -> <span class="prelude-ty">Result</span><(), std::fmt::Error> {
f.write_str(<span class="kw">match </span><span class="self">self </span>{
GetTimezoneError::FailedParsingString => <span class="string">"GetTimezoneError::FailedParsingString"</span>,
GetTimezoneError::IoError(err) => <span class="kw">return </span>err.fmt(f),
GetTimezoneError::OsError => <span class="string">"OsError"</span>,
})
}
}
<span class="kw">impl </span>From<std::io::Error> <span class="kw">for </span>GetTimezoneError {
<span class="kw">fn </span>from(orig: std::io::Error) -> <span class="self">Self </span>{
GetTimezoneError::IoError(orig)
}
}
<span class="doccomment">/// Get the current IANA time zone as a string.
///
/// See the module-level documentation for a usage example and more details
/// about this function.
</span><span class="attr">#[inline]
</span><span class="kw">pub fn </span>get_timezone() -> <span class="prelude-ty">Result</span><String, GetTimezoneError> {
platform::get_timezone_inner()
}
<span class="attr">#[cfg(test)]
</span><span class="kw">mod </span>tests {
<span class="kw">use super</span>::<span class="kw-2">*</span>;
<span class="attr">#[test]
</span><span class="kw">fn </span>get_current() {
<span class="macro">println!</span>(<span class="string">"current: {}"</span>, get_timezone().unwrap());
}
}
</code></pre></div>
</section></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="iana_time_zone" data-themes="" data-resource-suffix="" data-rustdoc-version="1.69.0 (84c898d65 2023-04-16) (built from a source tarball)" data-search-js="search-8a59a8356673ec1f.js" data-settings-js="settings-f0c5c39777a9a2f6.js" data-settings-css="settings-0bcba95ff279c1db.css" ></div></body></html>