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- <div class="section" id="c-str">
- <h1><a class="toc-backref" href="./string-operations.html#id1562">c_str</a></h1>
- <div class="section" id="id1137">
- <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
- <pre class="literal-block">
- template<
- typename Sequence
- >
- struct <a href="./c-str.html" class="identifier">c_str</a>
- {
- typedef <em>unspecified</em> type;
- static char const value[];
- };
- </pre>
- </div>
- <div class="section" id="id1138">
- <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
- <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>
- into a null-terminated byte string containing an equivalent sequence.</p>
- </div>
- <div class="section" id="id1139">
- <h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
- <pre class="literal-block">
- #include <<a href="../../../../boost/mpl/string.hpp" class="header">boost/mpl/string.hpp</a>>
- </pre>
- </div>
- <div class="section" id="id1140">
- <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
- <p><a class="reference internal" href="./metafunction.html">Metafunction</a></p>
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- <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
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- <tr><th class="head">Parameter</th>
- <th class="head">Requirement</th>
- <th class="head">Description</th>
- </tr>
- </thead>
- <tbody valign="top">
- <tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td>
- <td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> of
- <a class="reference internal" href="./integral-constant.html">Integral Constant</a>s</td>
- <td>A sequence to be converted into a
- null-terminated byte string.</td>
- </tr>
- </tbody>
- </table>
- </div>
- <div class="section" id="id1142">
- <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
- <div class="expression-semantics compound">
- <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>
- <pre class="compound-middle literal-block">
- <a href="./c-str.html" class="identifier">c_str</a><s>::value;
- </pre>
- <table class="compound-last docutils field-list" frame="void" rules="none">
- <col class="field-name" />
- <col class="field-body" />
- <tbody valign="top">
- <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A null-terminated byte string.</p>
- </td>
- </tr>
- <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>
- </td>
- </tr>
- <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
- <pre class="last literal-block">
- char const value[] = {
- <a href="./at.html" class="identifier">at</a><s, 0>::type::value
- , ...
- , <a href="./at.html" class="identifier">at</a><s, <a href="./size.html" class="identifier">size</a><s>::value-1>::type::value
- , '\0'
- };
- </pre>
- </td>
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- </table>
- </div>
- </div>
- <div class="section" id="id1143">
- <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
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- <col width="47%" />
- <col width="53%" />
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- <thead valign="bottom">
- <tr><th class="head">Sequence archetype</th>
- <th class="head">Complexity</th>
- </tr>
- </thead>
- <tbody valign="top">
- <tr><td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a></td>
- <td>Linear.</td>
- </tr>
- </tbody>
- </table>
- </div>
- <div class="section" id="id1144">
- <h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
- <pre class="literal-block">
- typedef <a href="./vector-c.html" class="identifier">vector_c</a><char,'h','e','l','l','o'> hello;
- assert( 0 == std::strcmp( <a href="./c-str.html" class="identifier">c_str</a><hello>::value, "hello" ) );
- </pre>
- </div>
- <div class="section" id="id1145">
- <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
- <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>
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- <td><div class="copyright-footer"><div class="copyright">Copyright © 2009 Eric Niebler</div>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
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