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Initial commit of quickbook generated docs. [SVN r37943]
2007-06-08 09:23:23 +00:00
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<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.ref.concepts.charT_concept"></a><a 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 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 &lt; 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 &gt; 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 &lt;= 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 &gt;= 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"><small>Copyright <20> 2007 John Maddock</small></td>
</tr></table>
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