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- <div class="titlepage"><div><div><h4 class="title">
- <a name="boost_regex.ref.concepts.charT_concept"></a><a class="link" href="charT_concept.html" title="charT Requirements">charT Requirements</a>
- </h4></div></div></div>
- <p>
- Type <code class="computeroutput"><span class="identifier">charT</span></code> used a template
- argument to class template <a class="link" href="../basic_regex.html" title="basic_regex"><code class="computeroutput"><span class="identifier">basic_regex</span></code></a>, must have a trivial
- default constructor, copy constructor, assignment operator, and destructor.
- In addition the following requirements must be met for objects; <span class="emphasis"><em>c</em></span>
- of type <code class="computeroutput"><span class="identifier">charT</span></code>, <span class="emphasis"><em>c1</em></span>
- and <span class="emphasis"><em>c2</em></span> of type <code class="computeroutput"><span class="identifier">charT</span>
- <span class="keyword">const</span></code>, and <span class="emphasis"><em>i</em></span>
- of type <code class="computeroutput"><span class="keyword">int</span></code>:
- </p>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Expression
- </p>
- </th>
- <th>
- <p>
- Return type
- </p>
- </th>
- <th>
- <p>
- Assertion / Note / Pre- / Post-condition
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- charT c
- </p>
- </td>
- <td>
- <p>
- charT
- </p>
- </td>
- <td>
- <p>
- Default constructor (must be trivial).
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- charT c(c1)
- </p>
- </td>
- <td>
- <p>
- charT
- </p>
- </td>
- <td>
- <p>
- Copy constructor (must be trivial).
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- c1 = c2
- </p>
- </td>
- <td>
- <p>
- charT
- </p>
- </td>
- <td>
- <p>
- Assignment operator (must be trivial).
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- c1 == c2
- </p>
- </td>
- <td>
- <p>
- bool
- </p>
- </td>
- <td>
- <p>
- true if c1 has the same value as c2.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- c1 != c2
- </p>
- </td>
- <td>
- <p>
- bool
- </p>
- </td>
- <td>
- <p>
- true if c1 and c2 are not equal.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- c1 < c2
- </p>
- </td>
- <td>
- <p>
- bool
- </p>
- </td>
- <td>
- <p>
- true if the value of c1 is less than c2.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- c1 > c2
- </p>
- </td>
- <td>
- <p>
- bool
- </p>
- </td>
- <td>
- <p>
- true if the value of c1 is greater than c2.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- c1 <= c2
- </p>
- </td>
- <td>
- <p>
- bool
- </p>
- </td>
- <td>
- <p>
- true if c1 is less than or equal to c2.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- c1 >= c2
- </p>
- </td>
- <td>
- <p>
- bool
- </p>
- </td>
- <td>
- <p>
- true if c1 is greater than or equal to c2.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- intmax_t i = c1
- </p>
- </td>
- <td>
- <p>
- int
- </p>
- </td>
- <td>
- <p>
- charT must be convertible to an integral type.
- </p>
- <p>
- Note: type charT is not required to support this operation, if
- the traits class used supports the full Boost-specific interface,
- rather than the minimal standardised-interface (see traits class
- requirements below).
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- charT c(i);
- </p>
- </td>
- <td>
- <p>
- charT
- </p>
- </td>
- <td>
- <p>
- charT must be constructable from an integral type.
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
- <td align="left"></td>
- <td align="right"><div class="copyright-footer">Copyright © 1998-2013 John Maddock<p>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
- </p>
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