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1 | <?xml version="1.0" encoding="utf-8" ?> |
| 2 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> | |
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| 6 | <meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" /> | |
| 7 | <title>The MPL Reference Manual: c_str</title> | |
| 8 | <link rel="stylesheet" href="../style.css" type="text/css" /> | |
| 9 | </head> | |
| 10 | <body class="docframe refmanual"> | |
| 11 | <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./string-operations.html" class="navigation-link">Prev</a> <a href="./miscellaneous.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group">Back Along</span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./string-operations.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> | |
| 12 | <td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./metafunctions.html" class="navigation-link">Metafunctions</a> / <a href="./string-operations.html" class="navigation-link">String Operations</a> / <a href="./c-str.html" class="navigation-link">c_str</a></td> | |
| 13 | </tr></table><div class="header-separator"></div> | |
| 14 | <div class="section" id="c-str"> | |
| 15 | <h1><a class="toc-backref" href="./string-operations.html#id1562">c_str</a></h1> | |
| 16 | <div class="section" id="id1137"> | |
| 17 | <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> | |
| 18 | <pre class="literal-block"> | |
| 19 | template< | |
| 20 | typename Sequence | |
| 21 | > | |
| 22 | struct <a href="./c-str.html" class="identifier">c_str</a> | |
| 23 | { | |
| 24 | typedef <em>unspecified</em> type; | |
| 25 | static char const value[]; | |
| 26 | }; | |
| 27 | </pre> | |
| 28 | </div> | |
| 29 | <div class="section" id="id1138"> | |
| 30 | <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> | |
| 31 | <p><tt class="literal"><span class="pre"><a href="./c-str.html" class="identifier">c_str</a></span></tt> converts the <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> of <a class="reference internal" href="./integral-constant.html">Integral Constant</a>s <tt class="literal"><span class="pre">Sequence</span></tt> | |
| 32 | into a null-terminated byte string containing an equivalent sequence.</p> | |
| 33 | </div> | |
| 34 | <div class="section" id="id1139"> | |
| 35 | <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> | |
| 36 | <pre class="literal-block"> | |
| 37 | #include <<a href="../../../../boost/mpl/string.hpp" class="header">boost/mpl/string.hpp</a>> | |
| 38 | </pre> | |
| 39 | </div> | |
| 40 | <div class="section" id="id1140"> | |
| 41 | <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> | |
| 42 | <p><a class="reference internal" href="./metafunction.html">Metafunction</a></p> | |
| 43 | </div> | |
| 44 | <div class="section" id="id1141"> | |
| 45 | <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> | |
| 46 | <table border="1" class="docutils table"> | |
| 47 | <colgroup> | |
| 48 | <col width="17%" /> | |
| 49 | <col width="30%" /> | |
| 50 | <col width="53%" /> | |
| 51 | </colgroup> | |
| 52 | <thead valign="bottom"> | |
| 53 | <tr><th class="head">Parameter</th> | |
| 54 | <th class="head">Requirement</th> | |
| 55 | <th class="head">Description</th> | |
| 56 | </tr> | |
| 57 | </thead> | |
| 58 | <tbody valign="top"> | |
| 59 | <tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td> | |
| 60 | <td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> of | |
| 61 | <a class="reference internal" href="./integral-constant.html">Integral Constant</a>s</td> | |
| 62 | <td>A sequence to be converted into a | |
| 63 | null-terminated byte string.</td> | |
| 64 | </tr> | |
| 65 | </tbody> | |
| 66 | </table> | |
| 67 | </div> | |
| 68 | <div class="section" id="id1142"> | |
| 69 | <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> | |
| 70 | <div class="expression-semantics compound"> | |
| 71 | <p class="compound-first">For any <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> of <a class="reference internal" href="./integral-constant.html">Integral Constant</a>s <tt class="literal"><span class="pre">s</span></tt>,</p> | |
| 72 | <pre class="compound-middle literal-block"> | |
| 73 | <a href="./c-str.html" class="identifier">c_str</a><s>::value; | |
| 74 | </pre> | |
| 75 | <table class="compound-last docutils field-list" frame="void" rules="none"> | |
| 76 | <col class="field-name" /> | |
| 77 | <col class="field-body" /> | |
| 78 | <tbody valign="top"> | |
| 79 | <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A null-terminated byte string.</p> | |
| 80 | </td> | |
| 81 | </tr> | |
| 82 | <tr class="field"><th class="field-name">Precondition:</th><td class="field-body"><p class="first"><tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a><s>::value</span> <span class="pre"><=</span> <span class="pre">BOOST_MPL_STRING_MAX_LENGTH</span></tt>.</p> | |
| 83 | </td> | |
| 84 | </tr> | |
| 85 | <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> | |
| 86 | <pre class="last literal-block"> | |
| 87 | char const value[] = { | |
| 88 | <a href="./at.html" class="identifier">at</a><s, 0>::type::value | |
| 89 | , ... | |
| 90 | , <a href="./at.html" class="identifier">at</a><s, <a href="./size.html" class="identifier">size</a><s>::value-1>::type::value | |
| 91 | , '\0' | |
| 92 | }; | |
| 93 | </pre> | |
| 94 | </td> | |
| 95 | </tr> | |
| 96 | </tbody> | |
| 97 | </table> | |
| 98 | </div> | |
| 99 | </div> | |
| 100 | <div class="section" id="id1143"> | |
| 101 | <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3> | |
| 102 | <table border="1" class="docutils table"> | |
| 103 | <colgroup> | |
| 104 | <col width="47%" /> | |
| 105 | <col width="53%" /> | |
| 106 | </colgroup> | |
| 107 | <thead valign="bottom"> | |
| 108 | <tr><th class="head">Sequence archetype</th> | |
| 109 | <th class="head">Complexity</th> | |
| 110 | </tr> | |
| 111 | </thead> | |
| 112 | <tbody valign="top"> | |
| 113 | <tr><td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a></td> | |
| 114 | <td>Linear.</td> | |
| 115 | </tr> | |
| 116 | </tbody> | |
| 117 | </table> | |
| 118 | </div> | |
| 119 | <div class="section" id="id1144"> | |
| 120 | <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> | |
| 121 | <pre class="literal-block"> | |
| 122 | typedef <a href="./vector-c.html" class="identifier">vector_c</a><char,'h','e','l','l','o'> hello; | |
| 123 | assert( 0 == std::strcmp( <a href="./c-str.html" class="identifier">c_str</a><hello>::value, "hello" ) ); | |
| 124 | </pre> | |
| 125 | </div> | |
| 126 | <div class="section" id="id1145"> | |
| 127 | <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> | |
| 128 | <p><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a>, <a class="reference internal" href="./integral-constant.html">Integral Constant</a>, <a class="reference internal" href="./string.html">string</a></p> | |
| 129 | </div> | |
| 130 | </div> | |
| 131 | ||
| 132 | <div class="footer-separator"></div> | |
| 133 | <table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./string-operations.html" class="navigation-link">Prev</a> <a href="./miscellaneous.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group">Back Along</span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./string-operations.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> | |
| 134 | <td><div class="copyright-footer"><div class="copyright">Copyright © 2009 Eric Niebler</div> | |
| 135 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 136 | file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body> | |
| 137 | </html> |