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| <div class="section" id="not"> |
| <h1><a class="toc-backref" href="./logical-operations.html#id1552">not_</a></h1> |
| <div class="section" id="id1082"> |
| <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> |
| <pre class="literal-block"> |
| template< |
| typename F |
| > |
| struct <a href="./not.html" class="identifier">not_</a> |
| { |
| typedef <em>unspecified</em> type; |
| }; |
| </pre> |
| </div> |
| <div class="section" id="id1083"> |
| <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> |
| <p>Returns the result of <em>logical not</em> (<tt class="literal"><span class="pre">!</span></tt>) operation on its argument.</p> |
| </div> |
| <div class="section" id="id1084"> |
| <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> |
| <pre class="literal-block"> |
| #include <<a href="../../../../boost/mpl/not.hpp" class="header">boost/mpl/not.hpp</a>> |
| #include <<a href="../../../../boost/mpl/logical.hpp" class="header">boost/mpl/logical.hpp</a>> |
| </pre> |
| </div> |
| <div class="section" id="id1085"> |
| <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> |
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| <col width="17%" /> |
| <col width="30%" /> |
| <col width="53%" /> |
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| <thead valign="bottom"> |
| <tr><th class="head">Parameter</th> |
| <th class="head">Requirement</th> |
| <th class="head">Description</th> |
| </tr> |
| </thead> |
| <tbody valign="top"> |
| <tr><td><tt class="literal"><span class="pre">F</span></tt></td> |
| <td>Nullary <a class="reference internal" href="./metafunction.html">Metafunction</a></td> |
| <td>Operation's argument.</td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="section" id="id1086"> |
| <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> |
| <p>For arbitrary nullary <a class="reference internal" href="./metafunction.html">Metafunction</a> <tt class="literal"><span class="pre">f</span></tt>:</p> |
| <pre class="literal-block"> |
| typedef <a href="./not.html" class="identifier">not_</a><f>::type r; |
| </pre> |
| <table class="docutils field-list" frame="void" rules="none"> |
| <col class="field-name" /> |
| <col class="field-body" /> |
| <tbody valign="top"> |
| <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first"><a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p> |
| </td> |
| </tr> |
| <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> |
| <pre class="last literal-block"> |
| typedef <a href="./bool.html" class="identifier">bool_</a>< (!f::type::value) > r; |
| </pre> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <!-- .......................................................................... --> |
| <pre class="literal-block"> |
| typedef <a href="./not.html" class="identifier">not_</a><f> r; |
| </pre> |
| <table class="docutils field-list" frame="void" rules="none"> |
| <col class="field-name" /> |
| <col class="field-body" /> |
| <tbody valign="top"> |
| <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first"><a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p> |
| </td> |
| </tr> |
| <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> |
| <pre class="last literal-block"> |
| struct r : <a href="./not.html" class="identifier">not_</a><f>::type {}; |
| </pre> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="section" id="id1087"> |
| <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> |
| <pre class="literal-block"> |
| <a href="./assert-not.html" class="identifier">BOOST_MPL_ASSERT_NOT</a>(( <a href="./not.html" class="identifier">not_</a>< <a href="./bool.html" class="identifier">true_</a> > )); |
| <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./not.html" class="identifier">not_</a>< <a href="./bool.html" class="identifier">false_</a> > )); |
| </pre> |
| </div> |
| <div class="section" id="id1088"> |
| <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> |
| <p><a class="reference internal" href="./metafunctions.html">Metafunctions</a>, <a class="reference internal" href="./logical-operations.html">Logical Operations</a>, <a class="reference internal" href="./and.html">and_</a>, <a class="reference internal" href="./or.html">or_</a></p> |
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