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| <td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./sequences.html" class="navigation-link">Sequences</a> / <a href="./classes.html" class="navigation-link">Classes</a> / <a href="./set.html" class="navigation-link">set</a></td> |
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| <div class="section" id="set"> |
| <h1><a class="toc-backref" href="./classes.html#id1409">set</a></h1> |
| <div class="section" id="id72"> |
| <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> |
| <p><tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt> is a <a class="reference internal" href="./variadic-sequence.html">variadic</a>, <a class="reference internal" href="./associative-sequence.html">associative</a>, <a class="reference internal" href="./extensible-associative-sequence.html">extensible</a> sequence of types that |
| supports constant-time insertion and removal of elements, and testing for membership. |
| A <tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt> may contain at most one element for each key.</p> |
| </div> |
| <div class="section" id="id75"> |
| <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> |
| <table border="1" class="docutils table"> |
| <colgroup> |
| <col width="26%" /> |
| <col width="74%" /> |
| </colgroup> |
| <thead valign="bottom"> |
| <tr><th class="head">Sequence form</th> |
| <th class="head">Header</th> |
| </tr> |
| </thead> |
| <tbody valign="top"> |
| <tr><td>Variadic</td> |
| <td><tt class="literal"><span class="pre">#include <<a href="../../../../boost/mpl/set.hpp" class="header">boost/mpl/set.hpp</a>></span></tt></td> |
| </tr> |
| <tr><td>Numbered</td> |
| <td><tt class="literal"><span class="pre">#include <boost/mpl/set/set</span></tt><em>n</em><tt class="literal"><span class="pre">.hpp></span></tt></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="section" id="id76"> |
| <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> |
| <ul class="simple"> |
| <li><a class="reference internal" href="./variadic-sequence.html">Variadic Sequence</a></li> |
| <li><a class="reference internal" href="./associative-sequence.html">Associative Sequence</a></li> |
| <li><a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a></li> |
| </ul> |
| </div> |
| <div class="section" id="id77"> |
| <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> |
| <p>In the following table, <tt class="literal"><span class="pre">s</span></tt> is an instance of <tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt>, <tt class="literal"><span class="pre">pos</span></tt> is an iterator into <tt class="literal"><span class="pre">s</span></tt>, |
| and <tt class="literal"><span class="pre">x</span></tt>, <tt class="literal"><span class="pre">k</span></tt>, and <em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub> are arbitrary types.</p> |
| <table border="1" class="docutils table"> |
| <colgroup> |
| <col width="40%" /> |
| <col width="60%" /> |
| </colgroup> |
| <thead valign="bottom"> |
| <tr><th class="head">Expression</th> |
| <th class="head">Semantics</th> |
| </tr> |
| </thead> |
| <tbody valign="top"> |
| <tr><td><pre class="first last literal-block"> |
| <a href="./set.html" class="identifier">set</a><<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>> |
| <a href="./set.html" class="identifier">set</a><em>n</em><<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>> |
| </pre> |
| </td> |
| <td><tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt> of elements <em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>; see |
| <a class="reference internal" href="./variadic-sequence.html">Variadic Sequence</a>.</td> |
| </tr> |
| <tr><td><pre class="first last literal-block"> |
| <a href="./set.html" class="identifier">set</a><<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>>::type |
| <a href="./set.html" class="identifier">set</a><em>n</em><<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>>::type |
| </pre> |
| </td> |
| <td>Identical to <tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt><em>n</em><tt class="literal"><span class="pre"><</span></tt><em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub><tt class="literal"><span class="pre">></span></tt>; |
| see <a class="reference internal" href="./variadic-sequence.html">Variadic Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a><s>::type</span></tt></td> |
| <td>An iterator pointing to the beginning of <tt class="literal"><span class="pre">s</span></tt>; |
| see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a><s>::type</span></tt></td> |
| <td>An iterator pointing to the end of <tt class="literal"><span class="pre">s</span></tt>; |
| see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a><s>::type</span></tt></td> |
| <td>The size of <tt class="literal"><span class="pre">s</span></tt>; see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./empty.html" class="identifier">empty</a><s>::type</span></tt></td> |
| <td>A boolean <a class="reference internal" href="./integral-constant.html">Integral Constant</a> <tt class="literal"><span class="pre">c</span></tt> such that |
| <tt class="literal"><span class="pre">c::value</span> <span class="pre">==</span> <span class="pre">true</span></tt> if and only if <tt class="literal"><span class="pre">s</span></tt> is empty; see |
| <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./front.html" class="identifier">front</a><s>::type</span></tt></td> |
| <td>The first element in <tt class="literal"><span class="pre">s</span></tt>; see |
| <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./has-key.html" class="identifier">has_key</a><s,k>::type</span></tt></td> |
| <td>A boolean <a class="reference internal" href="./integral-constant.html">Integral Constant</a> <tt class="literal"><span class="pre">c</span></tt> such that |
| <tt class="literal"><span class="pre">c::value</span> <span class="pre">==</span> <span class="pre">true</span></tt> if and only if there is one or more elements |
| with the key <tt class="literal"><span class="pre">k</span></tt> in <tt class="literal"><span class="pre">s</span></tt>; see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./count.html" class="identifier">count</a><s,k>::type</span></tt></td> |
| <td>The number of elements with the key <tt class="literal"><span class="pre">k</span></tt> in <tt class="literal"><span class="pre">s</span></tt>; |
| see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./order.html" class="identifier">order</a><s,k>::type</span></tt></td> |
| <td>A unique unsigned <a class="reference internal" href="./integral-constant.html">Integral Constant</a> associated with |
| the key <tt class="literal"><span class="pre">k</span></tt> in <tt class="literal"><span class="pre">s</span></tt>; see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><pre class="first last literal-block"> |
| <a href="./at.html" class="identifier">at</a><s,k>::type |
| <a href="./at.html" class="identifier">at</a><s,k,def>::type |
| </pre> |
| </td> |
| <td>The element associated with the key <tt class="literal"><span class="pre">k</span></tt> in |
| <tt class="literal"><span class="pre">s</span></tt>; see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./key-type.html" class="identifier">key_type</a><s,x>::type</span></tt></td> |
| <td>Identical to <tt class="literal"><span class="pre">x</span></tt>; see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./value-type.html" class="identifier">value_type</a><s,x>::type</span></tt></td> |
| <td>Identical to <tt class="literal"><span class="pre">x</span></tt>; see <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a><s,x>::type</span></tt></td> |
| <td><p class="first">A new <tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt> equivalent to <tt class="literal"><span class="pre">s</span></tt> except that</p> |
| <pre class="literal-block"> |
| <a href="./at.html" class="identifier">at</a>< t, <a href="./key-type.html" class="identifier">key_type</a><s,x>::type >::type |
| </pre> |
| <p class="last">is identical to <tt class="literal"><span class="pre"><a href="./value-type.html" class="identifier">value_type</a><s,x>::type</span></tt>.</p> |
| </td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a><s,pos,x>::type</span></tt></td> |
| <td>Equivalent to <tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a><s,x>::type</span></tt>; <tt class="literal"><span class="pre">pos</span></tt> is ignored.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./erase-key.html" class="identifier">erase_key</a><s,k>::type</span></tt></td> |
| <td>A new <tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt> equivalent to <tt class="literal"><span class="pre">s</span></tt> except that |
| <tt class="literal"><span class="pre"><a href="./has-key.html" class="identifier">has_key</a><t,</span> <span class="pre">k>::value</span> <span class="pre">==</span> <span class="pre">false</span></tt>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./erase.html" class="identifier">erase</a><s,pos>::type</span></tt></td> |
| <td>Equivalent to <tt class="literal"><span class="pre"><a href="./erase.html" class="identifier">erase</a><s,</span> <span class="pre"><a href="./deref.html" class="identifier">deref</a><pos>::type</span> <span class="pre">>::type</span></tt>.</td> |
| </tr> |
| <tr><td><tt class="literal"><span class="pre"><a href="./clear.html" class="identifier">clear</a><s>::type</span></tt></td> |
| <td>An empty <tt class="literal"><span class="pre"><a href="./set.html" class="identifier">set</a></span></tt>; see <a class="reference internal" href="./clear.html">clear</a>.</td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="section" id="id78"> |
| <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> |
| <pre class="literal-block"> |
| typedef <a href="./set.html" class="identifier">set</a>< int,long,double,<a href="./int.html" class="identifier">int_</a><5> > s; |
| |
| <a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( <a href="./size.html" class="identifier">size</a><s>::value, ==, 4 ); |
| <a href="./assert-not.html" class="identifier">BOOST_MPL_ASSERT_NOT</a>(( <a href="./empty.html" class="identifier">empty</a><s> )); |
| |
| <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< <a href="./at.html" class="identifier">at</a><s,int>::type, int > )); |
| <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< <a href="./at.html" class="identifier">at</a><s,long>::type, long > )); |
| <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< <a href="./at.html" class="identifier">at</a><s,<a href="./int.html" class="identifier">int_</a><5> >::type, <a href="./int.html" class="identifier">int_</a><5> > )); |
| <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< <a href="./at.html" class="identifier">at</a><s,char>::type, <a href="./void.html" class="identifier">void_</a> > )); |
| </pre> |
| </div> |
| <div class="section" id="id79"> |
| <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> |
| <p><a class="reference internal" href="./sequences.html">Sequences</a>, <a class="reference internal" href="./variadic-sequence.html">Variadic Sequence</a>, <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>, <a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a>, <a class="reference internal" href="./set-c.html">set_c</a>, <a class="reference internal" href="./map.html">map</a>, <a class="reference internal" href="./vector.html">vector</a></p> |
| <!-- Sequences/Classes//map |50 --> |
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| <td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> |
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