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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 &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"><div class="copyright-footer">Copyright &#169; 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>
</div></td>
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7c673cae FG	1	<html>
	2	<head>
	3	<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
	4	<title>charT Requirements</title>
	5	<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
	6	<meta name="generator" content="DocBook XSL Stylesheets V1.77.1">
	7	<link rel="home" href="../../../index.html" title="Boost.Regex 5.1.2">
	8	<link rel="up" href="../concepts.html" title="Concepts">
	9	<link rel="prev" href="../concepts.html" title="Concepts">
	10	<link rel="next" href="traits_concept.html" title="Traits Class Requirements">
	11	</head>
	12	<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
	13	<table cellpadding="2" width="100%"><tr>
	14	<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
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	17	<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
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	19	<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
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	22	<div class="spirit-nav">
	23	<a accesskey="p" href="../concepts.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="traits_concept.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
	24	</div>
	25	<div class="section">
	26	<div class="titlepage"><div><div><h4 class="title">
	27	<a name="boost_regex.ref.concepts.charT_concept"></a><a class="link" href="charT_concept.html" title="charT Requirements">charT Requirements</a>
	28	</h4></div></div></div>
	29	<p>
	30	Type <code class="computeroutput"><span class="identifier">charT</span></code> used a template
	31	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
	32	default constructor, copy constructor, assignment operator, and destructor.
	33	In addition the following requirements must be met for objects; <span class="emphasis"><em>c</em></span>
	34	of type <code class="computeroutput"><span class="identifier">charT</span></code>, <span class="emphasis"><em>c1</em></span>
	35	and <span class="emphasis"><em>c2</em></span> of type <code class="computeroutput"><span class="identifier">charT</span>
	36	<span class="keyword">const</span></code>, and <span class="emphasis"><em>i</em></span>
	37	of type <code class="computeroutput"><span class="keyword">int</span></code>:
	38	</p>
	39	<div class="informaltable"><table class="table">
	40	<colgroup>
	41	<col>
	42	<col>
	43	<col>
	44	</colgroup>
	45	<thead><tr>
	46	<th>
	47	<p>
	48	Expression
	49	</p>
	50	</th>
	51	<th>
	52	<p>
	53	Return type
	54	</p>
	55	</th>
	56	<th>
	57	<p>
	58	Assertion / Note / Pre- / Post-condition
	59	</p>
	60	</th>
	61	</tr></thead>
	62	<tbody>
	63	<tr>
	64	<td>
65	<p>
66	charT c
67	</p>
68	</td>
69	<td>
70	<p>
71	charT
72	</p>
73	</td>
74	<td>
75	<p>
76	Default constructor (must be trivial).
77	</p>
78	</td>
79	</tr>
80	<tr>
81	<td>
82	<p>
83	charT c(c1)
84	</p>
85	</td>
86	<td>
87	<p>
88	charT
89	</p>
90	</td>
91	<td>
92	<p>
93	Copy constructor (must be trivial).
94	</p>
95	</td>
96	</tr>
97	<tr>
98	<td>
99	<p>
100	c1 = c2
101	</p>
102	</td>
103	<td>
104	<p>
105	charT
106	</p>
107	</td>
108	<td>
109	<p>
110	Assignment operator (must be trivial).
111	</p>
112	</td>
113	</tr>
114	<tr>
115	<td>
116	<p>
117	c1 == c2
118	</p>
119	</td>
120	<td>
121	<p>
122	bool
123	</p>
124	</td>
125	<td>
126	<p>
127	true if c1 has the same value as c2.
128	</p>
129	</td>
130	</tr>
131	<tr>
132	<td>
133	<p>
134	c1 != c2
135	</p>
136	</td>
137	<td>
138	<p>
139	bool
140	</p>
141	</td>
142	<td>
143	<p>
144	true if c1 and c2 are not equal.
145	</p>
146	</td>
147	</tr>
148	<tr>
149	<td>
150	<p>
151	c1 < c2
152	</p>
153	</td>
154	<td>
155	<p>
156	bool
157	</p>
158	</td>
159	<td>
160	<p>
161	true if the value of c1 is less than c2.
162	</p>
163	</td>
164	</tr>
165	<tr>
166	<td>
167	<p>
168	c1 > c2
169	</p>
170	</td>
171	<td>
172	<p>
173	bool
174	</p>
175	</td>
176	<td>
177	<p>
178	true if the value of c1 is greater than c2.
179	</p>
180	</td>
181	</tr>
182	<tr>
183	<td>
184	<p>
185	c1 <= c2
186	</p>
187	</td>
188	<td>
189	<p>
190	bool
191	</p>
192	</td>
193	<td>
194	<p>
195	true if c1 is less than or equal to c2.
196	</p>
197	</td>
198	</tr>
199	<tr>
200	<td>
201	<p>
202	c1 >= c2
203	</p>
204	</td>
205	<td>
206	<p>
207	bool
208	</p>
209	</td>
210	<td>
211	<p>
212	true if c1 is greater than or equal to c2.
213	</p>
214	</td>
215	</tr>
216	<tr>
217	<td>
218	<p>
219	intmax_t i = c1
220	</p>
221	</td>
222	<td>
223	<p>
224	int
225	</p>
226	</td>
227	<td>
228	<p>
229	charT must be convertible to an integral type.
230	</p>
231	<p>
232	Note: type charT is not required to support this operation, if
233	the traits class used supports the full Boost-specific interface,
234	rather than the minimal standardised-interface (see traits class
235	requirements below).
236	</p>
237	</td>
238	</tr>
239	<tr>
240	<td>
241	<p>
242	charT c(i);
243	</p>
244	</td>
245	<td>
246	<p>
247	charT
248	</p>
249	</td>
250	<td>
251	<p>
252	charT must be constructable from an integral type.
253	</p>
254	</td>
255	</tr>
256	</tbody>
257	</table></div>
258	</div>
259	<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
260	<td align="left"></td>
261	<td align="right"><div class="copyright-footer">Copyright © 1998-2013 John Maddock<p>
262	Distributed under the Boost Software License, Version 1.0. (See accompanying
263	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>)
264	</p>
265	</div></td>
266	</tr></table>
267	<hr>
268	<div class="spirit-nav">
269	<a accesskey="p" href="../concepts.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="traits_concept.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
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