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27<a name="boost.xpressive.null_regex_traits"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Struct template null_regex_traits</span></h2> 30<p>boost::xpressive::null_regex_traits — stub <a class="link" href="regex_traits.html" title="Struct template regex_traits">regex_traits</a> for non-char data </p> 31</div> 32<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 33<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../xpressive/reference.html#header.boost.xpressive.xpressive_fwd_hpp" title="Header <boost/xpressive/xpressive_fwd.hpp>">boost/xpressive/xpressive_fwd.hpp</a>> 34 35</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Elem<span class="special">></span> 36<span class="keyword">struct</span> <a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a> <span class="special">{</span> 37 <span class="comment">// <a class="link" href="null_regex_traits.html#boost.xpressive.null_regex_traitsconstruct-copy-destruct">construct/copy/destruct</a></span> 38 <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_4-bb"><span class="identifier">null_regex_traits</span></a><span class="special">(</span><span class="identifier">locale_type</span> <span class="special">=</span> <span class="identifier">locale_type</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span> 39 40 <span class="comment">// <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_3-bb">public member functions</a></span> 41 <span class="keyword">bool</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_3_1-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a><span class="special"><</span> <span class="identifier">char_type</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 42 <span class="keyword">bool</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_3_2-bb"><span class="keyword">operator</span> <span class="special">!=</span></a><span class="special">(</span><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a><span class="special"><</span> <span class="identifier">char_type</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 43 <span class="identifier">char_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_3_3-bb"><span class="identifier">widen</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 44 45 <span class="comment">// <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5-bb">public static functions</a></span> 46 <span class="keyword">static</span> <span class="keyword">unsigned</span> <span class="keyword">char</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_1-bb"><span class="identifier">hash</span></a><span class="special">(</span><span class="identifier">char_type</span><span class="special">)</span><span class="special">;</span> 47 <span class="keyword">static</span> <span class="identifier">char_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_2-bb"><span class="identifier">translate</span></a><span class="special">(</span><span class="identifier">char_type</span><span class="special">)</span><span class="special">;</span> 48 <span class="keyword">static</span> <span class="identifier">char_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_3-bb"><span class="identifier">translate_nocase</span></a><span class="special">(</span><span class="identifier">char_type</span><span class="special">)</span><span class="special">;</span> 49 <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_4-bb"><span class="identifier">in_range</span></a><span class="special">(</span><span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">char_type</span><span class="special">)</span><span class="special">;</span> 50 <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_5-bb"><span class="identifier">in_range_nocase</span></a><span class="special">(</span><span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">char_type</span><span class="special">)</span><span class="special">;</span> 51 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> <span class="keyword">static</span> <span class="identifier">string_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_6-bb"><span class="identifier">transform</span></a><span class="special">(</span><span class="identifier">FwdIter</span><span class="special">,</span> <span class="identifier">FwdIter</span><span class="special">)</span><span class="special">;</span> 52 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> 53 <span class="keyword">static</span> <span class="identifier">string_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_7-bb"><span class="identifier">transform_primary</span></a><span class="special">(</span><span class="identifier">FwdIter</span><span class="special">,</span> <span class="identifier">FwdIter</span><span class="special">)</span><span class="special">;</span> 54 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> 55 <span class="keyword">static</span> <span class="identifier">string_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_8-bb"><span class="identifier">lookup_collatename</span></a><span class="special">(</span><span class="identifier">FwdIter</span><span class="special">,</span> <span class="identifier">FwdIter</span><span class="special">)</span><span class="special">;</span> 56 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> 57 <span class="keyword">static</span> <span class="identifier">char_class_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_9-bb"><span class="identifier">lookup_classname</span></a><span class="special">(</span><span class="identifier">FwdIter</span><span class="special">,</span> <span class="identifier">FwdIter</span><span class="special">,</span> <span class="keyword">bool</span><span class="special">)</span><span class="special">;</span> 58 <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_10-bb"><span class="identifier">isctype</span></a><span class="special">(</span><span class="identifier">char_type</span><span class="special">,</span> <span class="identifier">char_class_type</span><span class="special">)</span><span class="special">;</span> 59 <span class="keyword">static</span> <span class="keyword">int</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_11-bb"><span class="identifier">value</span></a><span class="special">(</span><span class="identifier">char_type</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span><span class="special">;</span> 60 <span class="keyword">static</span> <span class="identifier">locale_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_12-bb"><span class="identifier">imbue</span></a><span class="special">(</span><span class="identifier">locale_type</span><span class="special">)</span><span class="special">;</span> 61 <span class="keyword">static</span> <span class="identifier">locale_type</span> <a class="link" href="null_regex_traits.html#id-1_3_47_5_18_2_1_8_5_13-bb"><span class="identifier">getloc</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 62<span class="special">}</span><span class="special">;</span></pre></div> 63<div class="refsect1"> 64<a name="id-1.3.47.5.19.18.4"></a><h2>Description</h2> 65<div class="refsect2"> 66<a name="id-1.3.47.5.19.18.4.2"></a><h3> 67<a name="boost.xpressive.null_regex_traitsconstruct-copy-destruct"></a><code class="computeroutput">null_regex_traits</code> 68 public 69 construct/copy/destruct</h3> 70<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> 71<pre class="literallayout"><a name="id-1_3_47_5_18_2_1_8_4-bb"></a><span class="identifier">null_regex_traits</span><span class="special">(</span><span class="identifier">locale_type</span> <span class="special">=</span> <span class="identifier">locale_type</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre> 72<p>Initialize a <code class="computeroutput"><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a></code> object. </p> 73</li></ol></div> 74</div> 75<div class="refsect2"> 76<a name="id-1.3.47.5.19.18.4.3"></a><h3> 77<a name="id-1_3_47_5_18_2_1_8_3-bb"></a><code class="computeroutput">null_regex_traits</code> public member functions</h3> 78<div class="orderedlist"><ol class="orderedlist" type="1"> 79<li class="listitem"> 80<pre class="literallayout"><span class="keyword">bool</span> <a name="id-1_3_47_5_18_2_1_8_3_1-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a><span class="special"><</span> <span class="identifier">char_type</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> that<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> 81<p>Checks two <code class="computeroutput"><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a></code> objects for equality</p> 82<p> 83</p> 84<div class="variablelist"><table border="0" class="variablelist compact"> 85<colgroup> 86<col align="left" valign="top"> 87<col> 88</colgroup> 89<tbody><tr> 90<td><p><span class="term">Returns:</span></p></td> 91<td><p>true. </p></td> 92</tr></tbody> 93</table></div> 94</li> 95<li class="listitem"> 96<pre class="literallayout"><span class="keyword">bool</span> <a name="id-1_3_47_5_18_2_1_8_3_2-bb"></a><span class="keyword">operator</span> <span class="special">!=</span><span class="special">(</span><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a><span class="special"><</span> <span class="identifier">char_type</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> that<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> 97<p>Checks two <code class="computeroutput"><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a></code> objects for inequality</p> 98<p> 99</p> 100<div class="variablelist"><table border="0" class="variablelist compact"> 101<colgroup> 102<col align="left" valign="top"> 103<col> 104</colgroup> 105<tbody><tr> 106<td><p><span class="term">Returns:</span></p></td> 107<td><p>false. </p></td> 108</tr></tbody> 109</table></div> 110</li> 111<li class="listitem"> 112<pre class="literallayout"><span class="identifier">char_type</span> <a name="id-1_3_47_5_18_2_1_8_3_3-bb"></a><span class="identifier">widen</span><span class="special">(</span><span class="keyword">char</span> ch<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> 113<p>Convert a char to a Elem</p> 114<p> 115 116</p> 117<div class="variablelist"><table border="0" class="variablelist compact"> 118<colgroup> 119<col align="left" valign="top"> 120<col> 121</colgroup> 122<tbody> 123<tr> 124<td><p><span class="term">Parameters:</span></p></td> 125<td><div class="variablelist"><table border="0" class="variablelist compact"> 126<colgroup> 127<col align="left" valign="top"> 128<col> 129</colgroup> 130<tbody><tr> 131<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 132<td><p>The source character. </p></td> 133</tr></tbody> 134</table></div></td> 135</tr> 136<tr> 137<td><p><span class="term">Returns:</span></p></td> 138<td><p>Elem(ch). </p></td> 139</tr> 140</tbody> 141</table></div> 142</li> 143</ol></div> 144</div> 145<div class="refsect2"> 146<a name="id-1.3.47.5.19.18.4.4"></a><h3> 147<a name="id-1_3_47_5_18_2_1_8_5-bb"></a><code class="computeroutput">null_regex_traits</code> public static functions</h3> 148<div class="orderedlist"><ol class="orderedlist" type="1"> 149<li class="listitem"> 150<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">unsigned</span> <span class="keyword">char</span> <a name="id-1_3_47_5_18_2_1_8_5_1-bb"></a><span class="identifier">hash</span><span class="special">(</span><span class="identifier">char_type</span> ch<span class="special">)</span><span class="special">;</span></pre> 151<p>Returns a hash value for a Elem in the range [0, UCHAR_MAX]</p> 152<p> 153 154</p> 155<div class="variablelist"><table border="0" class="variablelist compact"> 156<colgroup> 157<col align="left" valign="top"> 158<col> 159</colgroup> 160<tbody> 161<tr> 162<td><p><span class="term">Parameters:</span></p></td> 163<td><div class="variablelist"><table border="0" class="variablelist compact"> 164<colgroup> 165<col align="left" valign="top"> 166<col> 167</colgroup> 168<tbody><tr> 169<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 170<td><p>The source character. </p></td> 171</tr></tbody> 172</table></div></td> 173</tr> 174<tr> 175<td><p><span class="term">Returns:</span></p></td> 176<td><p>a value between 0 and UCHAR_MAX, inclusive. </p></td> 177</tr> 178</tbody> 179</table></div> 180</li> 181<li class="listitem"> 182<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">char_type</span> <a name="id-1_3_47_5_18_2_1_8_5_2-bb"></a><span class="identifier">translate</span><span class="special">(</span><span class="identifier">char_type</span> ch<span class="special">)</span><span class="special">;</span></pre> 183<p>No-op</p> 184<p> 185 186</p> 187<div class="variablelist"><table border="0" class="variablelist compact"> 188<colgroup> 189<col align="left" valign="top"> 190<col> 191</colgroup> 192<tbody> 193<tr> 194<td><p><span class="term">Parameters:</span></p></td> 195<td><div class="variablelist"><table border="0" class="variablelist compact"> 196<colgroup> 197<col align="left" valign="top"> 198<col> 199</colgroup> 200<tbody><tr> 201<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 202<td><p>The source character. </p></td> 203</tr></tbody> 204</table></div></td> 205</tr> 206<tr> 207<td><p><span class="term">Returns:</span></p></td> 208<td><p>ch </p></td> 209</tr> 210</tbody> 211</table></div> 212</li> 213<li class="listitem"> 214<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">char_type</span> <a name="id-1_3_47_5_18_2_1_8_5_3-bb"></a><span class="identifier">translate_nocase</span><span class="special">(</span><span class="identifier">char_type</span> ch<span class="special">)</span><span class="special">;</span></pre> 215<p>No-op</p> 216<p> 217 218</p> 219<div class="variablelist"><table border="0" class="variablelist compact"> 220<colgroup> 221<col align="left" valign="top"> 222<col> 223</colgroup> 224<tbody> 225<tr> 226<td><p><span class="term">Parameters:</span></p></td> 227<td><div class="variablelist"><table border="0" class="variablelist compact"> 228<colgroup> 229<col align="left" valign="top"> 230<col> 231</colgroup> 232<tbody><tr> 233<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 234<td><p>The source character. </p></td> 235</tr></tbody> 236</table></div></td> 237</tr> 238<tr> 239<td><p><span class="term">Returns:</span></p></td> 240<td><p>ch </p></td> 241</tr> 242</tbody> 243</table></div> 244</li> 245<li class="listitem"> 246<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="id-1_3_47_5_18_2_1_8_5_4-bb"></a><span class="identifier">in_range</span><span class="special">(</span><span class="identifier">char_type</span> first<span class="special">,</span> <span class="identifier">char_type</span> last<span class="special">,</span> <span class="identifier">char_type</span> ch<span class="special">)</span><span class="special">;</span></pre> 247<p>Checks to see if a character is within a character range.</p> 248<p> 249 250</p> 251<div class="variablelist"><table border="0" class="variablelist compact"> 252<colgroup> 253<col align="left" valign="top"> 254<col> 255</colgroup> 256<tbody> 257<tr> 258<td><p><span class="term">Parameters:</span></p></td> 259<td><div class="variablelist"><table border="0" class="variablelist compact"> 260<colgroup> 261<col align="left" valign="top"> 262<col> 263</colgroup> 264<tbody> 265<tr> 266<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 267<td><p>The source character. </p></td> 268</tr> 269<tr> 270<td><p><span class="term"><code class="computeroutput">first</code></span></p></td> 271<td><p>The bottom of the range, inclusive. </p></td> 272</tr> 273<tr> 274<td><p><span class="term"><code class="computeroutput">last</code></span></p></td> 275<td><p>The top of the range, inclusive. </p></td> 276</tr> 277</tbody> 278</table></div></td> 279</tr> 280<tr> 281<td><p><span class="term">Returns:</span></p></td> 282<td><p>first <= ch && ch <= last. </p></td> 283</tr> 284</tbody> 285</table></div> 286</li> 287<li class="listitem"> 288<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="id-1_3_47_5_18_2_1_8_5_5-bb"></a><span class="identifier">in_range_nocase</span><span class="special">(</span><span class="identifier">char_type</span> first<span class="special">,</span> <span class="identifier">char_type</span> last<span class="special">,</span> <span class="identifier">char_type</span> ch<span class="special">)</span><span class="special">;</span></pre> 289<p>Checks to see if a character is within a character range.</p> 290<p> 291 292</p> 293<div class="note"><table border="0" summary="Note"> 294<tr> 295<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td> 296<th align="left">Note</th> 297</tr> 298<tr><td align="left" valign="top"><p>Since the <code class="computeroutput"><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a></code> does not do case-folding, this function is equivalent to in_range(). </p></td></tr> 299</table></div> 300<p> 301</p> 302<div class="variablelist"><table border="0" class="variablelist compact"> 303<colgroup> 304<col align="left" valign="top"> 305<col> 306</colgroup> 307<tbody> 308<tr> 309<td><p><span class="term">Parameters:</span></p></td> 310<td><div class="variablelist"><table border="0" class="variablelist compact"> 311<colgroup> 312<col align="left" valign="top"> 313<col> 314</colgroup> 315<tbody> 316<tr> 317<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 318<td><p>The source character. </p></td> 319</tr> 320<tr> 321<td><p><span class="term"><code class="computeroutput">first</code></span></p></td> 322<td><p>The bottom of the range, inclusive. </p></td> 323</tr> 324<tr> 325<td><p><span class="term"><code class="computeroutput">last</code></span></p></td> 326<td><p>The top of the range, inclusive. </p></td> 327</tr> 328</tbody> 329</table></div></td> 330</tr> 331<tr> 332<td><p><span class="term">Returns:</span></p></td> 333<td><p>first <= ch && ch <= last. </p></td> 334</tr> 335</tbody> 336</table></div> 337</li> 338<li class="listitem"> 339<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> 340 <span class="keyword">static</span> <span class="identifier">string_type</span> <a name="id-1_3_47_5_18_2_1_8_5_6-bb"></a><span class="identifier">transform</span><span class="special">(</span><span class="identifier">FwdIter</span> begin<span class="special">,</span> <span class="identifier">FwdIter</span> end<span class="special">)</span><span class="special">;</span></pre> 341<p>Returns a sort key for the character sequence designated by the iterator range [F1, F2) such that if the character sequence [G1, G2) sorts before the character sequence [H1, H2) then v.transform(G1, G2) < v.transform(H1, H2).</p> 342<div class="note"><table border="0" summary="Note"> 343<tr> 344<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td> 345<th align="left">Note</th> 346</tr> 347<tr><td align="left" valign="top"><p>Not currently used </p></td></tr> 348</table></div> 349<p> 350</p> 351</li> 352<li class="listitem"> 353<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> 354 <span class="keyword">static</span> <span class="identifier">string_type</span> <a name="id-1_3_47_5_18_2_1_8_5_7-bb"></a><span class="identifier">transform_primary</span><span class="special">(</span><span class="identifier">FwdIter</span> begin<span class="special">,</span> <span class="identifier">FwdIter</span> end<span class="special">)</span><span class="special">;</span></pre> 355<p>Returns a sort key for the character sequence designated by the iterator range [F1, F2) such that if the character sequence [G1, G2) sorts before the character sequence [H1, H2) when character case is not considered then v.transform_primary(G1, G2) < v.transform_primary(H1, H2).</p> 356<div class="note"><table border="0" summary="Note"> 357<tr> 358<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td> 359<th align="left">Note</th> 360</tr> 361<tr><td align="left" valign="top"><p>Not currently used </p></td></tr> 362</table></div> 363<p> 364</p> 365</li> 366<li class="listitem"> 367<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> 368 <span class="keyword">static</span> <span class="identifier">string_type</span> <a name="id-1_3_47_5_18_2_1_8_5_8-bb"></a><span class="identifier">lookup_collatename</span><span class="special">(</span><span class="identifier">FwdIter</span> begin<span class="special">,</span> <span class="identifier">FwdIter</span> end<span class="special">)</span><span class="special">;</span></pre> 369<p>Returns a sequence of characters that represents the collating element consisting of the character sequence designated by the iterator range [F1, F2). Returns an empty string if the character sequence is not a valid collating element.</p> 370<div class="note"><table border="0" summary="Note"> 371<tr> 372<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td> 373<th align="left">Note</th> 374</tr> 375<tr><td align="left" valign="top"><p>Not currently used </p></td></tr> 376</table></div> 377<p> 378</p> 379</li> 380<li class="listitem"> 381<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FwdIter<span class="special">></span> 382 <span class="keyword">static</span> <span class="identifier">char_class_type</span> 383 <a name="id-1_3_47_5_18_2_1_8_5_9-bb"></a><span class="identifier">lookup_classname</span><span class="special">(</span><span class="identifier">FwdIter</span> begin<span class="special">,</span> <span class="identifier">FwdIter</span> end<span class="special">,</span> <span class="keyword">bool</span> icase<span class="special">)</span><span class="special">;</span></pre> 384<p>The <code class="computeroutput"><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a></code> does not have character classifications, so lookup_classname() is unused.</p> 385<p> 386 387</p> 388<div class="variablelist"><table border="0" class="variablelist compact"> 389<colgroup> 390<col align="left" valign="top"> 391<col> 392</colgroup> 393<tbody> 394<tr> 395<td><p><span class="term">Parameters:</span></p></td> 396<td><div class="variablelist"><table border="0" class="variablelist compact"> 397<colgroup> 398<col align="left" valign="top"> 399<col> 400</colgroup> 401<tbody> 402<tr> 403<td><p><span class="term"><code class="computeroutput">begin</code></span></p></td> 404<td><p>not used </p></td> 405</tr> 406<tr> 407<td><p><span class="term"><code class="computeroutput">end</code></span></p></td> 408<td><p>not used </p></td> 409</tr> 410<tr> 411<td><p><span class="term"><code class="computeroutput">icase</code></span></p></td> 412<td><p>not used </p></td> 413</tr> 414</tbody> 415</table></div></td> 416</tr> 417<tr> 418<td><p><span class="term">Returns:</span></p></td> 419<td><p>static_cast<char_class_type>(0) </p></td> 420</tr> 421</tbody> 422</table></div> 423</li> 424<li class="listitem"> 425<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="id-1_3_47_5_18_2_1_8_5_10-bb"></a><span class="identifier">isctype</span><span class="special">(</span><span class="identifier">char_type</span> ch<span class="special">,</span> <span class="identifier">char_class_type</span> mask<span class="special">)</span><span class="special">;</span></pre> 426<p>The <code class="computeroutput"><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a></code> does not have character classifications, so isctype() is unused.</p> 427<p> 428 429</p> 430<div class="variablelist"><table border="0" class="variablelist compact"> 431<colgroup> 432<col align="left" valign="top"> 433<col> 434</colgroup> 435<tbody> 436<tr> 437<td><p><span class="term">Parameters:</span></p></td> 438<td><div class="variablelist"><table border="0" class="variablelist compact"> 439<colgroup> 440<col align="left" valign="top"> 441<col> 442</colgroup> 443<tbody> 444<tr> 445<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 446<td><p>not used </p></td> 447</tr> 448<tr> 449<td><p><span class="term"><code class="computeroutput">mask</code></span></p></td> 450<td><p>not used </p></td> 451</tr> 452</tbody> 453</table></div></td> 454</tr> 455<tr> 456<td><p><span class="term">Returns:</span></p></td> 457<td><p>false </p></td> 458</tr> 459</tbody> 460</table></div> 461</li> 462<li class="listitem"> 463<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">int</span> <a name="id-1_3_47_5_18_2_1_8_5_11-bb"></a><span class="identifier">value</span><span class="special">(</span><span class="identifier">char_type</span> ch<span class="special">,</span> <span class="keyword">int</span> radix<span class="special">)</span><span class="special">;</span></pre> 464<p>The <code class="computeroutput"><a class="link" href="null_regex_traits.html" title="Struct template null_regex_traits">null_regex_traits</a></code> recognizes no elements as digits, so value() is unused.</p> 465<p> 466 467</p> 468<div class="variablelist"><table border="0" class="variablelist compact"> 469<colgroup> 470<col align="left" valign="top"> 471<col> 472</colgroup> 473<tbody> 474<tr> 475<td><p><span class="term">Parameters:</span></p></td> 476<td><div class="variablelist"><table border="0" class="variablelist compact"> 477<colgroup> 478<col align="left" valign="top"> 479<col> 480</colgroup> 481<tbody> 482<tr> 483<td><p><span class="term"><code class="computeroutput">ch</code></span></p></td> 484<td><p>not used </p></td> 485</tr> 486<tr> 487<td><p><span class="term"><code class="computeroutput">radix</code></span></p></td> 488<td><p>not used </p></td> 489</tr> 490</tbody> 491</table></div></td> 492</tr> 493<tr> 494<td><p><span class="term">Returns:</span></p></td> 495<td><p>-1 </p></td> 496</tr> 497</tbody> 498</table></div> 499</li> 500<li class="listitem"> 501<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">locale_type</span> <a name="id-1_3_47_5_18_2_1_8_5_12-bb"></a><span class="identifier">imbue</span><span class="special">(</span><span class="identifier">locale_type</span> loc<span class="special">)</span><span class="special">;</span></pre> 502<p>Not used</p> 503<p> 504 505</p> 506<div class="variablelist"><table border="0" class="variablelist compact"> 507<colgroup> 508<col align="left" valign="top"> 509<col> 510</colgroup> 511<tbody> 512<tr> 513<td><p><span class="term">Parameters:</span></p></td> 514<td><div class="variablelist"><table border="0" class="variablelist compact"> 515<colgroup> 516<col align="left" valign="top"> 517<col> 518</colgroup> 519<tbody><tr> 520<td><p><span class="term"><code class="computeroutput">loc</code></span></p></td> 521<td><p>not used </p></td> 522</tr></tbody> 523</table></div></td> 524</tr> 525<tr> 526<td><p><span class="term">Returns:</span></p></td> 527<td><p>loc </p></td> 528</tr> 529</tbody> 530</table></div> 531</li> 532<li class="listitem"> 533<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">locale_type</span> <a name="id-1_3_47_5_18_2_1_8_5_13-bb"></a><span class="identifier">getloc</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 534<p>Returns locale_type().</p> 535<p> 536</p> 537<div class="variablelist"><table border="0" class="variablelist compact"> 538<colgroup> 539<col align="left" valign="top"> 540<col> 541</colgroup> 542<tbody><tr> 543<td><p><span class="term">Returns:</span></p></td> 544<td><p>locale_type() </p></td> 545</tr></tbody> 546</table></div> 547</li> 548</ol></div> 549</div> 550</div> 551</div> 552<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 553<td align="left"></td> 554<td align="right"><div class="copyright-footer">Copyright © 2007 Eric Niebler<p> 555 Distributed under the Boost Software License, Version 1.0. (See accompanying 556 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>) 557 </p> 558</div></td> 559</tr></table> 560<hr> 561<div class="spirit-nav"> 562<a accesskey="p" href="match_results.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../xpressive/reference.html#header.boost.xpressive.xpressive_fwd_hpp"><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="placeholder.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 563</div> 564</body> 565</html> 566
