libs/regex/doc/html/boost_regex/ref/concepts/charT_concept.html

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  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 &lt; 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 &gt; 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 &lt;= 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 &gt;= 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 &#169; 1998-2013 John Maddock<p>
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 264       </p>
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