image2aa 0.1.4

Convert image to ASCII Art.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113

<!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 `/home/sangenya/.cargo/registry/src/github.com-1ecc6299db9ec823/rayon-1.5.1/src/math.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>math.rs - source</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css"  id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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"><div class="sidebar-menu" role="button">&#9776;</div><a href='../../rayon/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1"> 1</span>
<span id="2"> 2</span>
<span id="3"> 3</span>
<span id="4"> 4</span>
<span id="5"> 5</span>
<span id="6"> 6</span>
<span id="7"> 7</span>
<span id="8"> 8</span>
<span id="9"> 9</span>
<span id="10">10</span>
<span id="11">11</span>
<span id="12">12</span>
<span id="13">13</span>
<span id="14">14</span>
<span id="15">15</span>
<span id="16">16</span>
<span id="17">17</span>
<span id="18">18</span>
<span id="19">19</span>
<span id="20">20</span>
<span id="21">21</span>
<span id="22">22</span>
<span id="23">23</span>
<span id="24">24</span>
<span id="25">25</span>
<span id="26">26</span>
<span id="27">27</span>
<span id="28">28</span>
<span id="29">29</span>
<span id="30">30</span>
<span id="31">31</span>
<span id="32">32</span>
<span id="33">33</span>
<span id="34">34</span>
<span id="35">35</span>
<span id="36">36</span>
<span id="37">37</span>
<span id="38">38</span>
<span id="39">39</span>
<span id="40">40</span>
<span id="41">41</span>
<span id="42">42</span>
<span id="43">43</span>
<span id="44">44</span>
<span id="45">45</span>
<span id="46">46</span>
<span id="47">47</span>
<span id="48">48</span>
<span id="49">49</span>
<span id="50">50</span>
<span id="51">51</span>
<span id="52">52</span>
<span id="53">53</span>
<span id="54">54</span>
</pre><pre class="rust">
<span class="kw">use</span> <span class="ident">std::ops</span>::{<span class="ident">Bound</span>, <span class="ident">Range</span>, <span class="ident">RangeBounds</span>};

<span class="doccomment">/// Divide `n` by `divisor`, and round up to the nearest integer</span>
<span class="doccomment">/// if not evenly divisable.</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn</span> <span class="ident">div_round_up</span>(<span class="ident">n</span>: <span class="ident">usize</span>, <span class="ident">divisor</span>: <span class="ident">usize</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">usize</span> {
    <span class="macro">debug_assert!</span>(<span class="ident">divisor</span> <span class="op">!</span><span class="op">=</span> <span class="number">0</span>, <span class="string">&quot;Division by zero!&quot;</span>);
    <span class="kw">if</span> <span class="ident">n</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span> {
        <span class="number">0</span>
    } <span class="kw">else</span> {
        (<span class="ident">n</span> <span class="op">-</span> <span class="number">1</span>) <span class="op">/</span> <span class="ident">divisor</span> <span class="op">+</span> <span class="number">1</span>
    }
}

<span class="doccomment">/// Normalize arbitrary `RangeBounds` to a `Range`</span>
<span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn</span> <span class="ident">simplify_range</span>(<span class="ident">range</span>: <span class="kw">impl</span> <span class="ident">RangeBounds</span><span class="op">&lt;</span><span class="ident">usize</span><span class="op">&gt;</span>, <span class="ident">len</span>: <span class="ident">usize</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">Range</span><span class="op">&lt;</span><span class="ident">usize</span><span class="op">&gt;</span> {
    <span class="kw">let</span> <span class="ident">start</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">range</span>.<span class="ident">start_bound</span>() {
        <span class="ident">Bound::Unbounded</span> <span class="op">=</span><span class="op">&gt;</span> <span class="number">0</span>,
        <span class="ident">Bound::Included</span>(<span class="kw-2">&amp;</span><span class="ident">i</span>) <span class="kw">if</span> <span class="ident">i</span> <span class="op">&lt;</span><span class="op">=</span> <span class="ident">len</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">i</span>,
        <span class="ident">Bound::Excluded</span>(<span class="kw-2">&amp;</span><span class="ident">i</span>) <span class="kw">if</span> <span class="ident">i</span> <span class="op">&lt;</span> <span class="ident">len</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">i</span> <span class="op">+</span> <span class="number">1</span>,
        <span class="ident">bound</span> <span class="op">=</span><span class="op">&gt;</span> <span class="macro">panic!</span>(<span class="string">&quot;range start {:?} should be &lt;= length {}&quot;</span>, <span class="ident">bound</span>, <span class="ident">len</span>),
    };
    <span class="kw">let</span> <span class="ident">end</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">range</span>.<span class="ident">end_bound</span>() {
        <span class="ident">Bound::Unbounded</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">len</span>,
        <span class="ident">Bound::Excluded</span>(<span class="kw-2">&amp;</span><span class="ident">i</span>) <span class="kw">if</span> <span class="ident">i</span> <span class="op">&lt;</span><span class="op">=</span> <span class="ident">len</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">i</span>,
        <span class="ident">Bound::Included</span>(<span class="kw-2">&amp;</span><span class="ident">i</span>) <span class="kw">if</span> <span class="ident">i</span> <span class="op">&lt;</span> <span class="ident">len</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">i</span> <span class="op">+</span> <span class="number">1</span>,
        <span class="ident">bound</span> <span class="op">=</span><span class="op">&gt;</span> <span class="macro">panic!</span>(<span class="string">&quot;range end {:?} should be &lt;= length {}&quot;</span>, <span class="ident">bound</span>, <span class="ident">len</span>),
    };
    <span class="kw">if</span> <span class="ident">start</span> <span class="op">&gt;</span> <span class="ident">end</span> {
        <span class="macro">panic!</span>(
            <span class="string">&quot;range start {:?} should be &lt;= range end {:?}&quot;</span>,
            <span class="ident">range</span>.<span class="ident">start_bound</span>(),
            <span class="ident">range</span>.<span class="ident">end_bound</span>()
        );
    }
    <span class="ident">start</span>..<span class="ident">end</span>
}

<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
<span class="kw">mod</span> <span class="ident">tests</span> {
    <span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;

    <span class="attribute">#[<span class="ident">test</span>]</span>
    <span class="kw">fn</span> <span class="ident">check_div_round_up</span>() {
        <span class="macro">assert_eq!</span>(<span class="number">0</span>, <span class="ident">div_round_up</span>(<span class="number">0</span>, <span class="number">5</span>));
        <span class="macro">assert_eq!</span>(<span class="number">1</span>, <span class="ident">div_round_up</span>(<span class="number">5</span>, <span class="number">5</span>));
        <span class="macro">assert_eq!</span>(<span class="number">1</span>, <span class="ident">div_round_up</span>(<span class="number">1</span>, <span class="number">5</span>));
        <span class="macro">assert_eq!</span>(<span class="number">2</span>, <span class="ident">div_round_up</span>(<span class="number">3</span>, <span class="number">2</span>));
        <span class="macro">assert_eq!</span>(
            <span class="ident">usize::max_value</span>() <span class="op">/</span> <span class="number">2</span> <span class="op">+</span> <span class="number">1</span>,
            <span class="ident">div_round_up</span>(<span class="ident">usize::max_value</span>(), <span class="number">2</span>)
        );
    }
}
</pre></div>
</section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="rayon" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div><script src="../../main.js"></script><script src="../../source-script.js"></script><script src="../../source-files.js"></script></body></html>