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annotate dep/fmt/doc/html/syntax.html @ 351:c844f8bb87ce

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gui/theme: add xsettings backend this also adds newly-necessary endianness methods in core/endian.h which just so happen to be constexpr as well
author Paper <paper@paper.us.eu.org>
date Sun, 14 Jul 2024 23:23:56 -0400
parents 1faa72660932
children
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1 <!DOCTYPE html>
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4 <html lang="en">
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5 <head>
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6 <meta charset="utf-8">
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7 <meta http-equiv="X-UA-Compatible" content="IE=edge">
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8 <meta name="viewport" content="width=device-width, initial-scale=1">
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10 <meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" />
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12 <title>Format String Syntax &mdash; fmt 10.2.1 documentation</title>
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14 <link rel="stylesheet" href="_static/basic.css" type="text/css" />
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15 <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
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16 <link rel="stylesheet" href="_static/breathe.css" type="text/css" />
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18 <script type="text/javascript">
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19 var DOCUMENTATION_OPTIONS = {
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20 URL_ROOT: './',
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21 VERSION: '10.2.1',
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22 COLLAPSE_INDEX: false,
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23 FILE_SUFFIX: '.html',
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24 LINK_SUFFIX: '.html',
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25 SOURCELINK_SUFFIX: '.txt',
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26 HAS_SOURCE: true,
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27 SOURCELINK_SUFFIX: '.txt'
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28 };
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29 </script>
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30 <script src="_static/jquery.js"></script>
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31 <script src="_static/underscore.js"></script>
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32 <script src="_static/doctools.js"></script>
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33 <script src="_static/language_data.js"></script>
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34 <link rel="index" title="Index" href="genindex.html" />
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35 <link rel="search" title="Search" href="search.html" />
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36 <meta name="description" content="Small, safe and fast formatting library">
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37 <meta name="keywords" content="C++, formatting, printf, string, library">
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38 <meta name="author" content="Victor Zverovich">
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39 <link rel="stylesheet" href="_static/fmt.css">
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40
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41 <script async src="https://www.googletagmanager.com/gtag/js?id=UA-20116650-4"></script>
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42 <script>
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43 window.dataLayer = window.dataLayer || [];
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44 function gtag(){dataLayer.push(arguments);}
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45 gtag('js', new Date());
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47 gtag('config', 'UA-20116650-4');
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48 </script>
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50 </head>
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51 <body role="document">
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52 <nav class="navbar navbar-inverse">
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53 <div class="tb-container">
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59 data-toggle="collapse" data-target=".navbar-collapse">
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60 <span class="sr-only">Toggle navigation</span>
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61 <span class="icon-bar"></span>
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62 <span class="icon-bar"></span>
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63 <span class="icon-bar"></span>
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64 </button>
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65 <a class="navbar-brand" href="index.html">{fmt}</a>
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66 </div>
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72 <a href="#" class="dropdown-toggle" data-toggle="dropdown"
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73 role="button" aria-expanded="false">10.2.1
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74 <span class="caret"></span></a>
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77 <li><a href="https://fmt.dev/10.2.1">10.2.1</a></li>
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79 <li><a href="https://fmt.dev/10.2.0">10.2.0</a></li>
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81 <li><a href="https://fmt.dev/10.1.1">10.1.1</a></li>
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83 </ul>
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84 </li>
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87 <li><a href="contents.html">Contents</a></li>
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91 <li><a href="usage.html">Usage</a></li>
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95 <li><a href="api.html">API</a></li>
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99 <li class="active"><a href="syntax.html">Syntax
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100 <span class="sr-only">(current)</span></a></li>
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103 </ul>
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106 <form class="navbar-form navbar-right" role="search" action="search.html"
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107 method="get">
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108 <div class="form-group">
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109 <input type="text" name="q" class="form-control"
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110 placeholder="Search" >
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111 </div>
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112 <input type="hidden" name="check_keywords" value="yes" />
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115 </form>
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117 </div>
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118 </div>
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129 <div class="content">
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131 <section id="format-string-syntax">
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132 <span id="syntax"></span><h1>Format String Syntax<a class="headerlink" href="#format-string-syntax" title="Permalink to this headline">¶</a></h1>
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133 <p>Formatting functions such as <a class="reference internal" href="api.html#format"><span class="std std-ref">fmt::format()</span></a> and
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134 <a class="reference internal" href="api.html#print"><span class="std std-ref">fmt::print()</span></a> use the same format string syntax described in this
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135 section.</p>
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136 <p>Format strings contain “replacement fields” surrounded by curly braces <code class="docutils literal notranslate"><span class="pre">{}</span></code>.
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137 Anything that is not contained in braces is considered literal text, which is
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138 copied unchanged to the output. If you need to include a brace character in the
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139 literal text, it can be escaped by doubling: <code class="docutils literal notranslate"><span class="pre">{{</span></code> and <code class="docutils literal notranslate"><span class="pre">}}</span></code>.</p>
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140 <p>The grammar for a replacement field is as follows:</p>
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141 <pre>
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142 <strong id="grammar-token-sf-replacement_field"><span id="grammar-token-replacement-field"></span>replacement_field</strong> ::= &quot;{&quot; [<a class="reference internal" href="#grammar-token-sf-arg_id"><code class="xref docutils literal notranslate"><span class="pre">arg_id</span></code></a>] [&quot;:&quot; (<a class="reference internal" href="#grammar-token-sf-format_spec"><code class="xref docutils literal notranslate"><span class="pre">format_spec</span></code></a> | <a class="reference internal" href="#grammar-token-sf-chrono_format_spec"><code class="xref docutils literal notranslate"><span class="pre">chrono_format_spec</span></code></a>)] &quot;}&quot;
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143 <strong id="grammar-token-sf-arg_id"><span id="grammar-token-arg-id"></span>arg_id </strong> ::= <a class="reference internal" href="#grammar-token-sf-integer"><code class="xref docutils literal notranslate"><span class="pre">integer</span></code></a> | <a class="reference internal" href="#grammar-token-sf-identifier"><code class="xref docutils literal notranslate"><span class="pre">identifier</span></code></a>
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144 <strong id="grammar-token-sf-integer"><span id="grammar-token-integer"></span>integer </strong> ::= <a class="reference internal" href="#grammar-token-sf-digit"><code class="xref docutils literal notranslate"><span class="pre">digit</span></code></a>+
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145 <strong id="grammar-token-sf-digit"><span id="grammar-token-digit"></span>digit </strong> ::= &quot;0&quot;...&quot;9&quot;
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146 <strong id="grammar-token-sf-identifier"><span id="grammar-token-identifier"></span>identifier </strong> ::= <a class="reference internal" href="#grammar-token-sf-id_start"><code class="xref docutils literal notranslate"><span class="pre">id_start</span></code></a> <a class="reference internal" href="#grammar-token-sf-id_continue"><code class="xref docutils literal notranslate"><span class="pre">id_continue</span></code></a>*
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147 <strong id="grammar-token-sf-id_start"><span id="grammar-token-id-start"></span>id_start </strong> ::= &quot;a&quot;...&quot;z&quot; | &quot;A&quot;...&quot;Z&quot; | &quot;_&quot;
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148 <strong id="grammar-token-sf-id_continue"><span id="grammar-token-id-continue"></span>id_continue </strong> ::= <a class="reference internal" href="#grammar-token-sf-id_start"><code class="xref docutils literal notranslate"><span class="pre">id_start</span></code></a> | <a class="reference internal" href="#grammar-token-sf-digit"><code class="xref docutils literal notranslate"><span class="pre">digit</span></code></a>
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149 </pre>
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150 <p>In less formal terms, the replacement field can start with an <em>arg_id</em>
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151 that specifies the argument whose value is to be formatted and inserted into
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152 the output instead of the replacement field.
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153 The <em>arg_id</em> is optionally followed by a <em>format_spec</em>, which is preceded by a
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154 colon <code class="docutils literal notranslate"><span class="pre">':'</span></code>. These specify a non-default format for the replacement value.</p>
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155 <p>See also the <a class="reference internal" href="#formatspec"><span class="std std-ref">Format Specification Mini-Language</span></a> section.</p>
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156 <p>If the numerical arg_ids in a format string are 0, 1, 2, … in sequence,
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157 they can all be omitted (not just some) and the numbers 0, 1, 2, … will be
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158 automatically inserted in that order.</p>
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159 <p>Named arguments can be referred to by their names or indices.</p>
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160 <p>Some simple format string examples:</p>
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161 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="s">&quot;First, thou shalt count to {0}&quot;</span><span class="w"> </span><span class="c1">// References the first argument</span>
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162 <span class="s">&quot;Bring me a {}&quot;</span><span class="w"> </span><span class="c1">// Implicitly references the first argument</span>
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163 <span class="s">&quot;From {} to {}&quot;</span><span class="w"> </span><span class="c1">// Same as &quot;From {0} to {1}&quot;</span>
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164 </pre></div>
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165 </div>
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166 <p>The <em>format_spec</em> field contains a specification of how the value should be
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167 presented, including such details as field width, alignment, padding, decimal
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168 precision and so on. Each value type can define its own “formatting
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169 mini-language” or interpretation of the <em>format_spec</em>.</p>
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170 <p>Most built-in types support a common formatting mini-language, which is
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Paper <paper@paper.us.eu.org>
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171 described in the next section.</p>
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172 <p>A <em>format_spec</em> field can also include nested replacement fields in certain
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173 positions within it. These nested replacement fields can contain only an
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174 argument id; format specifications are not allowed. This allows the formatting
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175 of a value to be dynamically specified.</p>
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176 <p>See the <a class="reference internal" href="#formatexamples"><span class="std std-ref">Format Examples</span></a> section for some examples.</p>
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177 <section id="format-specification-mini-language">
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178 <span id="formatspec"></span><h2>Format Specification Mini-Language<a class="headerlink" href="#format-specification-mini-language" title="Permalink to this headline">¶</a></h2>
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179 <p>“Format specifications” are used within replacement fields contained within a
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Paper <paper@paper.us.eu.org>
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180 format string to define how individual values are presented (see
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181 <a class="reference internal" href="#syntax"><span class="std std-ref">Format String Syntax</span></a>). Each formattable type may define how the format
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182 specification is to be interpreted.</p>
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183 <p>Most built-in types implement the following options for format specifications,
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Paper <paper@paper.us.eu.org>
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184 although some of the formatting options are only supported by the numeric types.</p>
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185 <p>The general form of a <em>standard format specifier</em> is:</p>
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186 <pre>
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187 <strong id="grammar-token-sf-format_spec"><span id="grammar-token-format-spec"></span>format_spec</strong> ::= [[<a class="reference internal" href="#grammar-token-sf-fill"><code class="xref docutils literal notranslate"><span class="pre">fill</span></code></a>]<a class="reference internal" href="#grammar-token-sf-align"><code class="xref docutils literal notranslate"><span class="pre">align</span></code></a>][<a class="reference internal" href="#grammar-token-sf-sign"><code class="xref docutils literal notranslate"><span class="pre">sign</span></code></a>][&quot;#&quot;][&quot;0&quot;][<a class="reference internal" href="#grammar-token-sf-width"><code class="xref docutils literal notranslate"><span class="pre">width</span></code></a>][&quot;.&quot; <a class="reference internal" href="#grammar-token-sf-precision"><code class="xref docutils literal notranslate"><span class="pre">precision</span></code></a>][&quot;L&quot;][<a class="reference internal" href="#grammar-token-sf-type"><code class="xref docutils literal notranslate"><span class="pre">type</span></code></a>]
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188 <strong id="grammar-token-sf-fill"><span id="grammar-token-fill"></span>fill </strong> ::= &lt;a character other than '{' or '}'&gt;
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189 <strong id="grammar-token-sf-align"><span id="grammar-token-align"></span>align </strong> ::= &quot;&lt;&quot; | &quot;&gt;&quot; | &quot;^&quot;
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190 <strong id="grammar-token-sf-sign"><span id="grammar-token-sign"></span>sign </strong> ::= &quot;+&quot; | &quot;-&quot; | &quot; &quot;
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191 <strong id="grammar-token-sf-width"><span id="grammar-token-width"></span>width </strong> ::= <a class="reference internal" href="#grammar-token-sf-integer"><code class="xref docutils literal notranslate"><span class="pre">integer</span></code></a> | &quot;{&quot; [<a class="reference internal" href="#grammar-token-sf-arg_id"><code class="xref docutils literal notranslate"><span class="pre">arg_id</span></code></a>] &quot;}&quot;
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192 <strong id="grammar-token-sf-precision"><span id="grammar-token-precision"></span>precision </strong> ::= <a class="reference internal" href="#grammar-token-sf-integer"><code class="xref docutils literal notranslate"><span class="pre">integer</span></code></a> | &quot;{&quot; [<a class="reference internal" href="#grammar-token-sf-arg_id"><code class="xref docutils literal notranslate"><span class="pre">arg_id</span></code></a>] &quot;}&quot;
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193 <strong id="grammar-token-sf-type"><span id="grammar-token-type"></span>type </strong> ::= &quot;a&quot; | &quot;A&quot; | &quot;b&quot; | &quot;B&quot; | &quot;c&quot; | &quot;d&quot; | &quot;e&quot; | &quot;E&quot; | &quot;f&quot; | &quot;F&quot; | &quot;g&quot; | &quot;G&quot; |
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194 &quot;o&quot; | &quot;p&quot; | &quot;s&quot; | &quot;x&quot; | &quot;X&quot; | &quot;?&quot;
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195 </pre>
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196 <p>The <em>fill</em> character can be any Unicode code point other than <code class="docutils literal notranslate"><span class="pre">'{'</span></code> or
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197 <code class="docutils literal notranslate"><span class="pre">'}'</span></code>. The presence of a fill character is signaled by the character following
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198 it, which must be one of the alignment options. If the second character of
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199 <em>format_spec</em> is not a valid alignment option, then it is assumed that both the
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200 fill character and the alignment option are absent.</p>
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201 <p>The meaning of the various alignment options is as follows:</p>
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202 <table class="docutils align-default">
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Paper <paper@paper.us.eu.org>
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203 <colgroup>
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Paper <paper@paper.us.eu.org>
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204 <col style="width: 13%" />
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Paper <paper@paper.us.eu.org>
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205 <col style="width: 87%" />
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Paper <paper@paper.us.eu.org>
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206 </colgroup>
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Paper <paper@paper.us.eu.org>
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207 <thead>
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Paper <paper@paper.us.eu.org>
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208 <tr class="row-odd"><th class="head"><p>Option</p></th>
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209 <th class="head"><p>Meaning</p></th>
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210 </tr>
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Paper <paper@paper.us.eu.org>
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211 </thead>
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Paper <paper@paper.us.eu.org>
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212 <tbody>
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213 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'&lt;'</span></code></p></td>
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214 <td><p>Forces the field to be left-aligned within the available
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Paper <paper@paper.us.eu.org>
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215 space (this is the default for most objects).</p></td>
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216 </tr>
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217 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'&gt;'</span></code></p></td>
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218 <td><p>Forces the field to be right-aligned within the
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Paper <paper@paper.us.eu.org>
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219 available space (this is the default for numbers).</p></td>
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220 </tr>
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221 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'^'</span></code></p></td>
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222 <td><p>Forces the field to be centered within the available
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Paper <paper@paper.us.eu.org>
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223 space.</p></td>
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224 </tr>
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Paper <paper@paper.us.eu.org>
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225 </tbody>
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Paper <paper@paper.us.eu.org>
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226 </table>
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Paper <paper@paper.us.eu.org>
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227 <p>Note that unless a minimum field width is defined, the field width will always
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Paper <paper@paper.us.eu.org>
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228 be the same size as the data to fill it, so that the alignment option has no
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Paper <paper@paper.us.eu.org>
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229 meaning in this case.</p>
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230 <p>The <em>sign</em> option is only valid for floating point and signed integer types,
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231 and can be one of the following:</p>
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232 <table class="docutils align-default">
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233 <colgroup>
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Paper <paper@paper.us.eu.org>
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234 <col style="width: 13%" />
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Paper <paper@paper.us.eu.org>
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235 <col style="width: 87%" />
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Paper <paper@paper.us.eu.org>
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236 </colgroup>
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Paper <paper@paper.us.eu.org>
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237 <thead>
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Paper <paper@paper.us.eu.org>
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238 <tr class="row-odd"><th class="head"><p>Option</p></th>
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239 <th class="head"><p>Meaning</p></th>
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240 </tr>
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241 </thead>
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242 <tbody>
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243 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'+'</span></code></p></td>
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244 <td><p>indicates that a sign should be used for both
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Paper <paper@paper.us.eu.org>
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245 nonnegative as well as negative numbers.</p></td>
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246 </tr>
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247 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'-'</span></code></p></td>
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248 <td><p>indicates that a sign should be used only for negative
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Paper <paper@paper.us.eu.org>
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249 numbers (this is the default behavior).</p></td>
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250 </tr>
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Paper <paper@paper.us.eu.org>
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251 <tr class="row-even"><td><p>space</p></td>
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Paper <paper@paper.us.eu.org>
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252 <td><p>indicates that a leading space should be used on
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Paper <paper@paper.us.eu.org>
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253 nonnegative numbers, and a minus sign on negative numbers.</p></td>
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254 </tr>
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Paper <paper@paper.us.eu.org>
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255 </tbody>
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
256 </table>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
257 <p>The <code class="docutils literal notranslate"><span class="pre">'#'</span></code> option causes the “alternate form” to be used for the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
258 conversion. The alternate form is defined differently for different
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
259 types. This option is only valid for integer and floating-point types.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
260 For integers, when binary, octal, or hexadecimal output is used, this
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
261 option adds the prefix respective <code class="docutils literal notranslate"><span class="pre">&quot;0b&quot;</span></code> (<code class="docutils literal notranslate"><span class="pre">&quot;0B&quot;</span></code>), <code class="docutils literal notranslate"><span class="pre">&quot;0&quot;</span></code>, or
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
262 <code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code> (<code class="docutils literal notranslate"><span class="pre">&quot;0X&quot;</span></code>) to the output value. Whether the prefix is
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
263 lower-case or upper-case is determined by the case of the type
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
264 specifier, for example, the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code> is used for the type <code class="docutils literal notranslate"><span class="pre">'x'</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
265 and <code class="docutils literal notranslate"><span class="pre">&quot;0X&quot;</span></code> is used for <code class="docutils literal notranslate"><span class="pre">'X'</span></code>. For floating-point numbers the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
266 alternate form causes the result of the conversion to always contain a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
267 decimal-point character, even if no digits follow it. Normally, a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
268 decimal-point character appears in the result of these conversions
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
269 only if a digit follows it. In addition, for <code class="docutils literal notranslate"><span class="pre">'g'</span></code> and <code class="docutils literal notranslate"><span class="pre">'G'</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
270 conversions, trailing zeros are not removed from the result.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
271 <p><em>width</em> is a decimal integer defining the minimum field width. If not
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
272 specified, then the field width will be determined by the content.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
273 <p>Preceding the <em>width</em> field by a zero (<code class="docutils literal notranslate"><span class="pre">'0'</span></code>) character enables sign-aware
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
274 zero-padding for numeric types. It forces the padding to be placed after the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
275 sign or base (if any) but before the digits. This is used for printing fields in
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
276 the form ‘+000000120’. This option is only valid for numeric types and it has no
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
277 effect on formatting of infinity and NaN.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
278 <p>The <em>precision</em> is a decimal number indicating how many digits should be
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
279 displayed after the decimal point for a floating-point value formatted with
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
280 <code class="docutils literal notranslate"><span class="pre">'f'</span></code> and <code class="docutils literal notranslate"><span class="pre">'F'</span></code>, or before and after the decimal point for a floating-point
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
281 value formatted with <code class="docutils literal notranslate"><span class="pre">'g'</span></code> or <code class="docutils literal notranslate"><span class="pre">'G'</span></code>. For non-number types the field
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
282 indicates the maximum field size - in other words, how many characters will be
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
283 used from the field content. The <em>precision</em> is not allowed for integer,
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
284 character, Boolean, and pointer values. Note that a C string must be
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
285 null-terminated even if precision is specified.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
286 <p>The <code class="docutils literal notranslate"><span class="pre">'L'</span></code> option uses the current locale setting to insert the appropriate
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
287 number separator characters. This option is only valid for numeric types.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
288 <p>Finally, the <em>type</em> determines how the data should be presented.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
289 <p>The available string presentation types are:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
290 <table class="docutils align-default">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
291 <colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
292 <col style="width: 13%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
293 <col style="width: 87%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
294 </colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
295 <thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
296 <tr class="row-odd"><th class="head"><p>Type</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
297 <th class="head"><p>Meaning</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
298 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
299 </thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
300 <tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
301 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'s'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
302 <td><p>String format. This is the default type for strings and
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
303 may be omitted.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
304 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
305 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'?'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
306 <td><p>Debug format. The string is quoted and special
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
307 characters escaped.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
308 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
309 <tr class="row-even"><td><p>none</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
310 <td><p>The same as <code class="docutils literal notranslate"><span class="pre">'s'</span></code>.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
311 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
312 </tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
313 </table>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
314 <p>The available character presentation types are:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
315 <table class="docutils align-default">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
316 <colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
317 <col style="width: 13%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
318 <col style="width: 87%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
319 </colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
320 <thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
321 <tr class="row-odd"><th class="head"><p>Type</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
322 <th class="head"><p>Meaning</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
323 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
324 </thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
325 <tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
326 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'c'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
327 <td><p>Character format. This is the default type for
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
328 characters and may be omitted.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
329 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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330 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'?'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
331 <td><p>Debug format. The character is quoted and special
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
332 characters escaped.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
333 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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334 <tr class="row-even"><td><p>none</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
335 <td><p>The same as <code class="docutils literal notranslate"><span class="pre">'c'</span></code>.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
336 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
337 </tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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338 </table>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
339 <p>The available integer presentation types are:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
340 <table class="docutils align-default">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
341 <colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
342 <col style="width: 13%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
343 <col style="width: 87%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
344 </colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
345 <thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
346 <tr class="row-odd"><th class="head"><p>Type</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
347 <th class="head"><p>Meaning</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
348 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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349 </thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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350 <tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
351 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'b'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
352 <td><p>Binary format. Outputs the number in base 2. Using the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
353 <code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0b&quot;</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
354 to the output value.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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355 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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356 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'B'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
357 <td><p>Binary format. Outputs the number in base 2. Using the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
358 <code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0B&quot;</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
359 to the output value.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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360 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
361 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'c'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
362 <td><p>Character format. Outputs the number as a character.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
363 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
364 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'d'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
365 <td><p>Decimal integer. Outputs the number in base 10.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
366 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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367 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'o'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
368 <td><p>Octal format. Outputs the number in base 8.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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369 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
370 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'x'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
371 <td><p>Hex format. Outputs the number in base 16, using
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
372 lower-case letters for the digits above 9. Using the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
373 <code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
374 to the output value.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
375 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
376 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'X'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
377 <td><p>Hex format. Outputs the number in base 16, using
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
378 upper-case letters for the digits above 9. Using the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
379 <code class="docutils literal notranslate"><span class="pre">'#'</span></code> option with this type adds the prefix <code class="docutils literal notranslate"><span class="pre">&quot;0X&quot;</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
380 to the output value.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
381 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
382 <tr class="row-odd"><td><p>none</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
383 <td><p>The same as <code class="docutils literal notranslate"><span class="pre">'d'</span></code>.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
384 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
385 </tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
386 </table>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
387 <p>Integer presentation types can also be used with character and Boolean values
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
388 with the only exception that <code class="docutils literal notranslate"><span class="pre">'c'</span></code> cannot be used with <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">bool</span></code>. Boolean values
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
389 are formatted using textual representation, either <code class="docutils literal notranslate"><span class="pre">true</span></code> or <code class="docutils literal notranslate"><span class="pre">false</span></code>, if the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
390 presentation type is not specified.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
391 <p>The available presentation types for floating-point values are:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
392 <table class="docutils align-default">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
393 <colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
394 <col style="width: 13%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
395 <col style="width: 87%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
396 </colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
397 <thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
398 <tr class="row-odd"><th class="head"><p>Type</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
399 <th class="head"><p>Meaning</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
400 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
401 </thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
402 <tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
403 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'a'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
404 <td><p>Hexadecimal floating point format. Prints the number in
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
405 base 16 with prefix <code class="docutils literal notranslate"><span class="pre">&quot;0x&quot;</span></code> and lower-case letters for
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
406 digits above 9. Uses <code class="docutils literal notranslate"><span class="pre">'p'</span></code> to indicate the exponent.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
407 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
408 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'A'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
409 <td><p>Same as <code class="docutils literal notranslate"><span class="pre">'a'</span></code> except it uses upper-case letters for
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
410 the prefix, digits above 9 and to indicate the exponent.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
411 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
412 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'e'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
413 <td><p>Exponent notation. Prints the number in scientific
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
414 notation using the letter ‘e’ to indicate the exponent.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
415 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
416 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'E'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
417 <td><p>Exponent notation. Same as <code class="docutils literal notranslate"><span class="pre">'e'</span></code> except it uses an
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
418 upper-case <code class="docutils literal notranslate"><span class="pre">'E'</span></code> as the separator character.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
419 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
420 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'f'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
421 <td><p>Fixed point. Displays the number as a fixed-point
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
422 number.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
423 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
424 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'F'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
425 <td><p>Fixed point. Same as <code class="docutils literal notranslate"><span class="pre">'f'</span></code>, but converts <code class="docutils literal notranslate"><span class="pre">nan</span></code> to
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
426 <code class="docutils literal notranslate"><span class="pre">NAN</span></code> and <code class="docutils literal notranslate"><span class="pre">inf</span></code> to <code class="docutils literal notranslate"><span class="pre">INF</span></code>.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
427 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
428 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'g'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
429 <td><p>General format. For a given precision <code class="docutils literal notranslate"><span class="pre">p</span> <span class="pre">&gt;=</span> <span class="pre">1</span></code>,
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
430 this rounds the number to <code class="docutils literal notranslate"><span class="pre">p</span></code> significant digits and
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
431 then formats the result in either fixed-point format
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
432 or in scientific notation, depending on its magnitude.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
433 <p>A precision of <code class="docutils literal notranslate"><span class="pre">0</span></code> is treated as equivalent to a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
434 precision of <code class="docutils literal notranslate"><span class="pre">1</span></code>.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
435 </td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
436 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
437 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'G'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
438 <td><p>General format. Same as <code class="docutils literal notranslate"><span class="pre">'g'</span></code> except switches to
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
439 <code class="docutils literal notranslate"><span class="pre">'E'</span></code> if the number gets too large. The
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
440 representations of infinity and NaN are uppercased, too.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
441 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
442 <tr class="row-even"><td><p>none</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
443 <td><p>Similar to <code class="docutils literal notranslate"><span class="pre">'g'</span></code>, except that the default precision is
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
444 as high as needed to represent the particular value.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
445 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
446 </tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
447 </table>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
448 <p>The available presentation types for pointers are:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
449 <table class="docutils align-default">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
450 <colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
451 <col style="width: 13%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
452 <col style="width: 87%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
453 </colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
454 <thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
455 <tr class="row-odd"><th class="head"><p>Type</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
456 <th class="head"><p>Meaning</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
457 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
458 </thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
459 <tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
460 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'p'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
461 <td><p>Pointer format. This is the default type for
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
462 pointers and may be omitted.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
463 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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464 <tr class="row-odd"><td><p>none</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
465 <td><p>The same as <code class="docutils literal notranslate"><span class="pre">'p'</span></code>.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
466 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
467 </tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
468 </table>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
469 </section>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
470 <section id="chrono-format-specifications">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
471 <span id="chrono-specs"></span><h2>Chrono Format Specifications<a class="headerlink" href="#chrono-format-specifications" title="Permalink to this headline">¶</a></h2>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
472 <p>Format specifications for chrono duration and time point types as well as
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
473 <code class="docutils literal notranslate"><span class="pre">std::tm</span></code> have the following syntax:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
474 <pre>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
475 <strong id="grammar-token-sf-chrono_format_spec"><span id="grammar-token-chrono-format-spec"></span>chrono_format_spec</strong> ::= [[<a class="reference internal" href="#grammar-token-sf-fill"><code class="xref docutils literal notranslate"><span class="pre">fill</span></code></a>]<a class="reference internal" href="#grammar-token-sf-align"><code class="xref docutils literal notranslate"><span class="pre">align</span></code></a>][<a class="reference internal" href="#grammar-token-sf-width"><code class="xref docutils literal notranslate"><span class="pre">width</span></code></a>][&quot;.&quot; <a class="reference internal" href="#grammar-token-sf-precision"><code class="xref docutils literal notranslate"><span class="pre">precision</span></code></a>][<a class="reference internal" href="#grammar-token-sf-chrono_specs"><code class="xref docutils literal notranslate"><span class="pre">chrono_specs</span></code></a>]
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
476 <strong id="grammar-token-sf-chrono_specs"><span id="grammar-token-chrono-specs"></span>chrono_specs </strong> ::= [<a class="reference internal" href="#grammar-token-sf-chrono_specs"><code class="xref docutils literal notranslate"><span class="pre">chrono_specs</span></code></a>] <a class="reference internal" href="#grammar-token-sf-conversion_spec"><code class="xref docutils literal notranslate"><span class="pre">conversion_spec</span></code></a> | <a class="reference internal" href="#grammar-token-sf-chrono_specs"><code class="xref docutils literal notranslate"><span class="pre">chrono_specs</span></code></a> <a class="reference internal" href="#grammar-token-sf-literal_char"><code class="xref docutils literal notranslate"><span class="pre">literal_char</span></code></a>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
477 <strong id="grammar-token-sf-conversion_spec"><span id="grammar-token-conversion-spec"></span>conversion_spec </strong> ::= &quot;%&quot; [<a class="reference internal" href="#grammar-token-sf-modifier"><code class="xref docutils literal notranslate"><span class="pre">modifier</span></code></a>] <a class="reference internal" href="#grammar-token-sf-chrono_type"><code class="xref docutils literal notranslate"><span class="pre">chrono_type</span></code></a>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
478 <strong id="grammar-token-sf-literal_char"><span id="grammar-token-literal-char"></span>literal_char </strong> ::= &lt;a character other than '{', '}' or '%'&gt;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
479 <strong id="grammar-token-sf-modifier"><span id="grammar-token-modifier"></span>modifier </strong> ::= &quot;E&quot; | &quot;O&quot;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
480 <strong id="grammar-token-sf-chrono_type"><span id="grammar-token-chrono-type"></span>chrono_type </strong> ::= &quot;a&quot; | &quot;A&quot; | &quot;b&quot; | &quot;B&quot; | &quot;c&quot; | &quot;C&quot; | &quot;d&quot; | &quot;D&quot; | &quot;e&quot; | &quot;F&quot; |
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
481 &quot;g&quot; | &quot;G&quot; | &quot;h&quot; | &quot;H&quot; | &quot;I&quot; | &quot;j&quot; | &quot;m&quot; | &quot;M&quot; | &quot;n&quot; | &quot;p&quot; |
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
482 &quot;q&quot; | &quot;Q&quot; | &quot;r&quot; | &quot;R&quot; | &quot;S&quot; | &quot;t&quot; | &quot;T&quot; | &quot;u&quot; | &quot;U&quot; | &quot;V&quot; |
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
483 &quot;w&quot; | &quot;W&quot; | &quot;x&quot; | &quot;X&quot; | &quot;y&quot; | &quot;Y&quot; | &quot;z&quot; | &quot;Z&quot; | &quot;%&quot;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
484 </pre>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
485 <p>Literal chars are copied unchanged to the output. Precision is valid only for
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
486 <code class="docutils literal notranslate"><span class="pre">std::chrono::duration</span></code> types with a floating-point representation type.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
487 <p>The available presentation types (<em>chrono_type</em>) are:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
488 <table class="docutils align-default">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
489 <colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
490 <col style="width: 12%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
491 <col style="width: 88%" />
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
492 </colgroup>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
493 <thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
494 <tr class="row-odd"><th class="head"><p>Type</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
495 <th class="head"><p>Meaning</p></th>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
496 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
497 </thead>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
498 <tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
499 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'a'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
500 <td><p>The abbreviated weekday name, e.g. “Sat”. If the value does not
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
501 contain a valid weekday, an exception of type <code class="docutils literal notranslate"><span class="pre">format_error</span></code> is
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
502 thrown.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
503 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
504 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'A'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
505 <td><p>The full weekday name, e.g. “Saturday”. If the value does not
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
506 contain a valid weekday, an exception of type <code class="docutils literal notranslate"><span class="pre">format_error</span></code> is
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
507 thrown.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
508 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
509 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'b'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
510 <td><p>The abbreviated month name, e.g. “Nov”. If the value does not
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
511 contain a valid month, an exception of type <code class="docutils literal notranslate"><span class="pre">format_error</span></code> is
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
512 thrown.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
513 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
514 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'B'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
515 <td><p>The full month name, e.g. “November”. If the value does not
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
516 contain a valid month, an exception of type <code class="docutils literal notranslate"><span class="pre">format_error</span></code> is
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
517 thrown.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
518 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
519 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'c'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
520 <td><p>The date and time representation, e.g. “Sat Nov 12 22:04:00 1955”.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
521 The modified command <code class="docutils literal notranslate"><span class="pre">%Ec</span></code> produces the locale’s alternate date
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
522 and time representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
523 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
524 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'C'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
525 <td><p>The year divided by 100 using floored division, e.g. “55”. If the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
526 result is a single decimal digit, it is prefixed with 0.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
527 The modified command <code class="docutils literal notranslate"><span class="pre">%EC</span></code> produces the locale’s alternative
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
528 representation of the century.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
529 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
530 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'d'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
531 <td><p>The day of month as a decimal number. If the result is a single
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
532 decimal digit, it is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%Od</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
533 produces the locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
534 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
535 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'D'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
536 <td><p>Equivalent to <code class="docutils literal notranslate"><span class="pre">%m/%d/%y</span></code>, e.g. “11/12/55”.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
537 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
538 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'e'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
539 <td><p>The day of month as a decimal number. If the result is a single
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
540 decimal digit, it is prefixed with a space. The modified command
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
541 <code class="docutils literal notranslate"><span class="pre">%Oe</span></code> produces the locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
542 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
543 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'F'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
544 <td><p>Equivalent to <code class="docutils literal notranslate"><span class="pre">%Y-%m-%d</span></code>, e.g. “1955-11-12”.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
545 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
546 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'g'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
547 <td><p>The last two decimal digits of the ISO week-based year. If the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
548 result is a single digit it is prefixed by 0.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
549 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
550 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'G'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
551 <td><p>The ISO week-based year as a decimal number. If the result is less
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
552 than four digits it is left-padded with 0 to four digits.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
553 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
554 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'h'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
555 <td><p>Equivalent to <code class="docutils literal notranslate"><span class="pre">%b</span></code>, e.g. “Nov”.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
556 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
557 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'H'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
558 <td><p>The hour (24-hour clock) as a decimal number. If the result is a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
559 single digit, it is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%OH</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
560 produces the locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
561 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
562 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'I'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
563 <td><p>The hour (12-hour clock) as a decimal number. If the result is a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
564 single digit, it is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%OI</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
565 produces the locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
566 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
567 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'j'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
568 <td><p>If the type being formatted is a specialization of duration, the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
569 decimal number of days without padding. Otherwise, the day of the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
570 year as a decimal number. Jan 1 is 001. If the result is less than
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
571 three digits, it is left-padded with 0 to three digits.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
572 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
573 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'m'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
574 <td><p>The month as a decimal number. Jan is 01. If the result is a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
575 single digit, it is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%Om</span></code>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
576 produces the locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
577 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
578 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'M'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
579 <td><p>The minute as a decimal number. If the result is a single digit,
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
580 it is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%OM</span></code> produces the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
581 locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
582 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
583 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'n'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
584 <td><p>A new-line character.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
585 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
586 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'p'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
587 <td><p>The AM/PM designations associated with a 12-hour clock.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
588 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
589 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'q'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
590 <td><p>The duration’s unit suffix.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
591 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
592 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'Q'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
593 <td><p>The duration’s numeric value (as if extracted via <code class="docutils literal notranslate"><span class="pre">.count()</span></code>).</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
594 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
595 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'r'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
596 <td><p>The 12-hour clock time, e.g. “10:04:00 PM”.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
597 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
598 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'R'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
599 <td><p>Equivalent to <code class="docutils literal notranslate"><span class="pre">%H:%M</span></code>, e.g. “22:04”.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
600 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
601 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'S'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
602 <td><p>Seconds as a decimal number. If the number of seconds is less than
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
603 10, the result is prefixed with 0. If the precision of the input
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
604 cannot be exactly represented with seconds, then the format is a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
605 decimal floating-point number with a fixed format and a precision
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
606 matching that of the precision of the input (or to a microseconds
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
607 precision if the conversion to floating-point decimal seconds
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
608 cannot be made within 18 fractional digits). The character for the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
609 decimal point is localized according to the locale. The modified
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
610 command <code class="docutils literal notranslate"><span class="pre">%OS</span></code> produces the locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
611 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
612 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'t'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
613 <td><p>A horizontal-tab character.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
614 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
615 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'T'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
616 <td><p>Equivalent to <code class="docutils literal notranslate"><span class="pre">%H:%M:%S</span></code>.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
617 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
618 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'u'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
619 <td><p>The ISO weekday as a decimal number (1-7), where Monday is 1. The
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
620 modified command <code class="docutils literal notranslate"><span class="pre">%Ou</span></code> produces the locale’s alternative
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
621 representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
622 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
623 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'U'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
624 <td><p>The week number of the year as a decimal number. The first Sunday
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
625 of the year is the first day of week 01. Days of the same year
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
626 prior to that are in week 00. If the result is a single digit, it
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
627 is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%OU</span></code> produces the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
628 locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
629 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
630 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'V'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
631 <td><p>The ISO week-based week number as a decimal number. If the result
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
632 is a single digit, it is prefixed with 0. The modified command
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
633 <code class="docutils literal notranslate"><span class="pre">%OV</span></code> produces the locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
634 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
635 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'w'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
636 <td><p>The weekday as a decimal number (0-6), where Sunday is 0.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
637 The modified command <code class="docutils literal notranslate"><span class="pre">%Ow</span></code> produces the locale’s alternative
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
638 representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
639 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
640 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'W'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
641 <td><p>The week number of the year as a decimal number. The first Monday
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
642 of the year is the first day of week 01. Days of the same year
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
643 prior to that are in week 00. If the result is a single digit, it
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
644 is prefixed with 0. The modified command <code class="docutils literal notranslate"><span class="pre">%OW</span></code> produces the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
645 locale’s alternative representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
646 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
647 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'x'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
648 <td><p>The date representation, e.g. “11/12/55”. The modified command
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
649 <code class="docutils literal notranslate"><span class="pre">%Ex</span></code> produces the locale’s alternate date representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
650 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
651 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'X'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
652 <td><p>The time representation, e.g. “10:04:00”. The modified command
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
653 <code class="docutils literal notranslate"><span class="pre">%EX</span></code> produces the locale’s alternate time representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
654 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
655 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'y'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
656 <td><p>The last two decimal digits of the year. If the result is a single
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
657 digit it is prefixed by 0. The modified command <code class="docutils literal notranslate"><span class="pre">%Oy</span></code> produces
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
658 the locale’s alternative representation. The modified command
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
659 <code class="docutils literal notranslate"><span class="pre">%Ey</span></code> produces the locale’s alternative representation of offset
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
660 from <code class="docutils literal notranslate"><span class="pre">%EC</span></code> (year only).</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
661 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
662 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'Y'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
663 <td><p>The year as a decimal number. If the result is less than four
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
664 digits it is left-padded with 0 to four digits. The modified
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
665 command <code class="docutils literal notranslate"><span class="pre">%EY</span></code> produces the locale’s alternative full year
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
666 representation.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
667 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
668 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'z'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
669 <td><p>The offset from UTC in the ISO 8601:2004 format. For example -0430
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
670 refers to 4 hours 30 minutes behind UTC. If the offset is zero,
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
671 +0000 is used. The modified commands <code class="docutils literal notranslate"><span class="pre">%Ez</span></code> and <code class="docutils literal notranslate"><span class="pre">%Oz</span></code> insert a
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
672 <code class="docutils literal notranslate"><span class="pre">:</span></code> between the hours and minutes: -04:30. If the offset
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
673 information is not available, an exception of type
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
674 <code class="docutils literal notranslate"><span class="pre">format_error</span></code> is thrown.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
675 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
676 <tr class="row-odd"><td><p><code class="docutils literal notranslate"><span class="pre">'Z'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
677 <td><p>The time zone abbreviation. If the time zone abbreviation is not
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
678 available, an exception of type <code class="docutils literal notranslate"><span class="pre">format_error</span></code> is thrown.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
679 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
680 <tr class="row-even"><td><p><code class="docutils literal notranslate"><span class="pre">'%'</span></code></p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
681 <td><p>A % character.</p></td>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
682 </tr>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
683 </tbody>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
684 </table>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
685 <p>Specifiers that have a calendaric component such as <code class="docutils literal notranslate"><span class="pre">'d'</span></code> (the day of month)
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
686 are valid only for <code class="docutils literal notranslate"><span class="pre">std::tm</span></code> and time points but not durations.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
687 </section>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
688 <section id="range-format-specifications">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
689 <h2>Range Format Specifications<a class="headerlink" href="#range-format-specifications" title="Permalink to this headline">¶</a></h2>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
690 <p>Format specifications for range types have the following syntax:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
691 <pre>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
692 <strong id="grammar-token-sf-range_format_spec"><span id="grammar-token-range-format-spec"></span>range_format_spec</strong> ::= [&quot;:&quot; [<code class="xref docutils literal notranslate"><span class="pre">underlying_spec</span></code>]]
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
693 </pre>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
694 <p>The <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">underlying_spec</span></code> is parsed based on the formatter of the range’s
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
695 reference type.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
696 <p>By default, a range of characters or strings is printed escaped and quoted. But
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
697 if any <code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">underlying_spec</span></code> is provided (even if it is empty), then the characters
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
698 or strings are printed according to the provided specification.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
699 <p>Examples:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
700 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">,</span><span class="w"> </span><span class="mi">30</span><span class="p">});</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
701 <span class="c1">// Result: [10, 20, 30]</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
702 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{::#x}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">std</span><span class="o">::</span><span class="n">vector</span><span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">,</span><span class="w"> </span><span class="mi">30</span><span class="p">});</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
703 <span class="c1">// Result: [0xa, 0x14, 0x1e]</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
704 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">vector</span><span class="p">{</span><span class="sc">&#39;h&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;e&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;o&#39;</span><span class="p">});</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
705 <span class="c1">// Result: [&#39;h&#39;, &#39;e&#39;, &#39;l&#39;, &#39;l&#39;, &#39;o&#39;]</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
706 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{::}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">vector</span><span class="p">{</span><span class="sc">&#39;h&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;e&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;o&#39;</span><span class="p">});</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
707 <span class="c1">// Result: [h, e, l, l, o]</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
708 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{::d}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">vector</span><span class="p">{</span><span class="sc">&#39;h&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;e&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;l&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;o&#39;</span><span class="p">});</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
709 <span class="c1">// Result: [104, 101, 108, 108, 111]</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
710 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
711 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
712 </section>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
713 <section id="format-examples">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
714 <span id="formatexamples"></span><h2>Format Examples<a class="headerlink" href="#format-examples" title="Permalink to this headline">¶</a></h2>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
715 <p>This section contains examples of the format syntax and comparison with
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
716 the printf formatting.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
717 <p>In most of the cases the syntax is similar to the printf formatting, with the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
718 addition of the <code class="docutils literal notranslate"><span class="pre">{}</span></code> and with <code class="docutils literal notranslate"><span class="pre">:</span></code> used instead of <code class="docutils literal notranslate"><span class="pre">%</span></code>.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
719 For example, <code class="docutils literal notranslate"><span class="pre">&quot;%03.2f&quot;</span></code> can be translated to <code class="docutils literal notranslate"><span class="pre">&quot;{:03.2f}&quot;</span></code>.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
720 <p>The new format syntax also supports new and different options, shown in the
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
721 following examples.</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
722 <p>Accessing arguments by position:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
723 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{0}, {1}, {2}&quot;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;a&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;b&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;c&#39;</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
724 <span class="c1">// Result: &quot;a, b, c&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
725 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{}, {}, {}&quot;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;a&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;b&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;c&#39;</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
726 <span class="c1">// Result: &quot;a, b, c&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
727 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{2}, {1}, {0}&quot;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;a&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;b&#39;</span><span class="p">,</span><span class="w"> </span><span class="sc">&#39;c&#39;</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
728 <span class="c1">// Result: &quot;c, b, a&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
729 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{0}{1}{0}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;abra&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;cad&quot;</span><span class="p">);</span><span class="w"> </span><span class="c1">// arguments&#39; indices can be repeated</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
730 <span class="c1">// Result: &quot;abracadabra&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
731 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
732 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
733 <p>Aligning the text and specifying a width:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
734 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:&lt;30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;left aligned&quot;</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
735 <span class="c1">// Result: &quot;left aligned &quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
736 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:&gt;30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;right aligned&quot;</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
737 <span class="c1">// Result: &quot; right aligned&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
738 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:^30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;centered&quot;</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
739 <span class="c1">// Result: &quot; centered &quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
740 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:*^30}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;centered&quot;</span><span class="p">);</span><span class="w"> </span><span class="c1">// use &#39;*&#39; as a fill char</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
741 <span class="c1">// Result: &quot;***********centered***********&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
742 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
743 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
744 <p>Dynamic width:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
745 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:&lt;{}}&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;left aligned&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">30</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
746 <span class="c1">// Result: &quot;left aligned &quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
747 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
748 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
749 <p>Dynamic precision:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
750 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:.{}f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
751 <span class="c1">// Result: &quot;3.1&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
752 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
753 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
754 <p>Replacing <code class="docutils literal notranslate"><span class="pre">%+f</span></code>, <code class="docutils literal notranslate"><span class="pre">%-f</span></code>, and <code class="docutils literal notranslate"><span class="pre">%</span> <span class="pre">f</span></code> and specifying a sign:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
755 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:+f}; {:+f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mf">-3.14</span><span class="p">);</span><span class="w"> </span><span class="c1">// show it always</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
756 <span class="c1">// Result: &quot;+3.140000; -3.140000&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
757 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{: f}; {: f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mf">-3.14</span><span class="p">);</span><span class="w"> </span><span class="c1">// show a space for positive numbers</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
758 <span class="c1">// Result: &quot; 3.140000; -3.140000&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
759 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:-f}; {:-f}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">3.14</span><span class="p">,</span><span class="w"> </span><span class="mf">-3.14</span><span class="p">);</span><span class="w"> </span><span class="c1">// show only the minus -- same as &#39;{:f}; {:f}&#39;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
760 <span class="c1">// Result: &quot;3.140000; -3.140000&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
761 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
762 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
763 <p>Replacing <code class="docutils literal notranslate"><span class="pre">%x</span></code> and <code class="docutils literal notranslate"><span class="pre">%o</span></code> and converting the value to different bases:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
764 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">42</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
765 <span class="c1">// Result: &quot;int: 42; hex: 2a; oct: 52; bin: 101010&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
766 <span class="c1">// with 0x or 0 or 0b as prefix:</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
767 <span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;int: {0:d}; hex: {0:#x}; oct: {0:#o}; bin: {0:#b}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">42</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
768 <span class="c1">// Result: &quot;int: 42; hex: 0x2a; oct: 052; bin: 0b101010&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
769 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
770 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
771 <p>Padded hex byte with prefix and always prints both hex characters:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
772 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="s">&quot;{:#04x}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
773 <span class="c1">// Result: &quot;0x00&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
774 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
775 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
776 <p>Box drawing using Unicode fill:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
777 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
778 <span class="w"> </span><span class="s">&quot;┌{0:─^{2}}┐</span><span class="se">\n</span><span class="s">&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
779 <span class="w"> </span><span class="s">&quot;│{1: ^{2}}│</span><span class="se">\n</span><span class="s">&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
780 <span class="w"> </span><span class="s">&quot;└{0:─^{2}}┘</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;&quot;</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;Hello, world!&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">20</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
781 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
782 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
783 <p>prints:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
784 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span>┌────────────────────┐
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
785 │ Hello, world! │
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
786 └────────────────────┘
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
787 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
788 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
789 <p>Using type-specific formatting:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
790 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;fmt/chrono.h&gt;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
791
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
792 <span class="k">auto</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tm</span><span class="p">();</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
793 <span class="n">t</span><span class="p">.</span><span class="n">tm_year</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2010</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1900</span><span class="p">;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
794 <span class="n">t</span><span class="p">.</span><span class="n">tm_mon</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">7</span><span class="p">;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
795 <span class="n">t</span><span class="p">.</span><span class="n">tm_mday</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
796 <span class="n">t</span><span class="p">.</span><span class="n">tm_hour</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">12</span><span class="p">;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
797 <span class="n">t</span><span class="p">.</span><span class="n">tm_min</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">15</span><span class="p">;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
798 <span class="n">t</span><span class="p">.</span><span class="n">tm_sec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">58</span><span class="p">;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
799 <span class="n">fmt</span><span class="o">::</span><span class="n">print</span><span class="p">(</span><span class="s">&quot;{:%Y-%m-%d %H:%M:%S}&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">t</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
800 <span class="c1">// Prints: 2010-08-04 12:15:58</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
801 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
802 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
803 <p>Using the comma as a thousands separator:</p>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
804 <div class="highlight-c++ notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;fmt/format.h&gt;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
805
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
806 <span class="k">auto</span><span class="w"> </span><span class="n">s</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">fmt</span><span class="o">::</span><span class="n">format</span><span class="p">(</span><span class="n">std</span><span class="o">::</span><span class="n">locale</span><span class="p">(</span><span class="s">&quot;en_US.UTF-8&quot;</span><span class="p">),</span><span class="w"> </span><span class="s">&quot;{:L}&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">1234567890</span><span class="p">);</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
807 <span class="c1">// s == &quot;1,234,567,890&quot;</span>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
808 </pre></div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
809 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
810 </section>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
811 </section>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
812
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
813
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
814 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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815 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
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816 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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817
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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818
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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819
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
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820 <div class="footer" role="contentinfo">
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
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821 &copy; Copyright 2012-present, Victor Zverovich.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
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822 Created using <a href="http://sphinx-doc.org/">Sphinx</a> 3.3.0.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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823 </div>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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824
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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825 <script src="_static/bootstrap.min.js"></script>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
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826
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
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827 </body>
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
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828 </html>