date_component 0.4.8

the missed date_component with chrono. calculate date interval with chrono.
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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="Source of the Rust file `/Users/m018/.cargo/registry/src/github.com-1ecc6299db9ec823/chrono-tz-0.8.3/src/binary_search.rs`."><title>binary_search.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="../../chrono_tz/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>
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</pre><pre class="rust"><code><span class="kw">use </span>core::cmp::Ordering;

<span class="doccomment">/// An implementation of binary search on indices only
/// that does not require slices to be constructed. Mirrors
/// the semantics of binary_search_by in the standard library.
</span><span class="kw">pub fn </span>binary_search&lt;F&gt;(<span class="kw-2">mut </span>start: usize, <span class="kw-2">mut </span>end: usize, <span class="kw-2">mut </span>f: F) -&gt; <span class="prelude-ty">Result</span>&lt;usize, usize&gt;
<span class="kw">where
    </span>F: FnMut(usize) -&gt; Ordering,
{
    <span class="kw">loop </span>{
        <span class="kw">let </span>mid = start + (end - start) / <span class="number">2</span>;
        <span class="kw">if </span>mid == end {
            <span class="kw">return </span><span class="prelude-val">Err</span>(start);
        }
        <span class="kw">match </span>f(mid) {
            Ordering::Less =&gt; start = mid + <span class="number">1</span>,
            Ordering::Greater =&gt; end = mid,
            Ordering::Equal =&gt; <span class="kw">return </span><span class="prelude-val">Ok</span>(mid),
        }
    }
}

<span class="attr">#[test]
</span><span class="kw">fn </span>test_binary_search() {
    <span class="macro">assert_eq!</span>(binary_search(<span class="number">0</span>, <span class="number">5000</span>, |x| x.cmp(<span class="kw-2">&amp;</span><span class="number">1337</span>)), <span class="prelude-val">Ok</span>(<span class="number">1337</span>));
    <span class="macro">assert_eq!</span>(binary_search(<span class="number">0</span>, <span class="number">5000</span>, |x| x.cmp(<span class="kw-2">&amp;</span><span class="number">9000</span>)), <span class="prelude-val">Err</span>(<span class="number">5000</span>));
    <span class="macro">assert_eq!</span>(binary_search(<span class="number">30</span>, <span class="number">50</span>, |x| x.cmp(<span class="kw-2">&amp;</span><span class="number">42</span>)), <span class="prelude-val">Ok</span>(<span class="number">42</span>));
    <span class="macro">assert_eq!</span>(binary_search(<span class="number">300</span>, <span class="number">500</span>, |x| x.cmp(<span class="kw-2">&amp;</span><span class="number">42</span>)), <span class="prelude-val">Err</span>(<span class="number">300</span>));
    <span class="macro">assert_eq!</span>(
        binary_search(<span class="number">0</span>, <span class="number">500</span>, |x| <span class="kw">if </span>x &lt; <span class="number">42 </span>{ Ordering::Less } <span class="kw">else </span>{ Ordering::Greater }),
        <span class="prelude-val">Err</span>(<span class="number">42</span>)
    );
}
</code></pre></div>
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