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| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="fusion.tuple.class_template_tuple.relational_operators"></a><a class="link" href="relational_operators.html" title="Relational operators">Relational |
| operators</a> |
| </h4></div></div></div> |
| <a name="fusion.tuple.class_template_tuple.relational_operators.description"></a><h6> |
| <a name="id1057122"></a> |
| <a class="link" href="relational_operators.html#fusion.tuple.class_template_tuple.relational_operators.description">Description</a> |
| </h6> |
| <p> |
| The <a href="http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2002/n1403.pdf" target="_top">TR1 |
| Tuple</a> provides the standard boolean relational operators. |
| </p> |
| <a name="fusion.tuple.class_template_tuple.relational_operators.specification"></a><h6> |
| <a name="id1057146"></a> |
| <a class="link" href="relational_operators.html#fusion.tuple.class_template_tuple.relational_operators.specification">Specification</a> |
| </h6> |
| <div class="variablelist"> |
| <p class="title"><b>Notation</b></p> |
| <dl> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">T1</span> <span class="special">...</span> |
| <span class="identifier">TN</span></code>, <code class="computeroutput"><span class="identifier">U1</span> |
| <span class="special">...</span> <span class="identifier">UN</span></code></span></dt> |
| <dd><p> |
| Tuple element types |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">P1</span> <span class="special">...</span> |
| <span class="identifier">PN</span></code></span></dt> |
| <dd><p> |
| Parameter types |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">Ti</span></code>, <code class="computeroutput"><span class="identifier">Ui</span></code></span></dt> |
| <dd><p> |
| The type of the <code class="computeroutput"><span class="identifier">i</span></code>th |
| element of a tuple |
| </p></dd> |
| <dt><span class="term"><code class="computeroutput"><span class="identifier">Pi</span></code></span></dt> |
| <dd><p> |
| The type of the <code class="computeroutput"><span class="identifier">i</span></code>th |
| parameter |
| </p></dd> |
| </dl> |
| </div> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">TN</span><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">U1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">UN</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==(</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">T1</span><span class="special">,</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">TN</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">U1</span><span class="special">,</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">UN</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: For all <code class="computeroutput"><span class="identifier">i</span></code>, |
| <code class="computeroutput"><span class="number">1</span> <span class="special"><=</span> |
| <span class="identifier">i</span> <span class="special"><</span> |
| <span class="identifier">N</span></code>, <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special">==</span> <a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">rhs</span><span class="special">)</span></code> |
| is a valid expression returning a type that is convertible to <code class="computeroutput"><span class="keyword">bool</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Returns <code class="computeroutput"><span class="keyword">true</span></code> |
| if and only if <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special">==</span> <a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">rhs</span><span class="special">)</span></code> |
| for all <code class="computeroutput"><span class="identifier">i</span></code>. For any 2 zero |
| length tuples <code class="computeroutput"><span class="identifier">e</span></code> and <code class="computeroutput"><span class="identifier">f</span></code>, <code class="computeroutput"><span class="identifier">e</span> |
| <span class="special">==</span> <span class="identifier">f</span></code> |
| returns <code class="computeroutput"><span class="keyword">true</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">TN</span><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">U1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">UN</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><(</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">T1</span><span class="special">,</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">TN</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">U1</span><span class="special">,</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">UN</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: For all <code class="computeroutput"><span class="identifier">i</span></code>, |
| <code class="computeroutput"><span class="number">1</span> <span class="special"><=</span> |
| <span class="identifier">i</span> <span class="special"><</span> |
| <span class="identifier">N</span></code>, <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special"><</span> <a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">rhs</span><span class="special">)</span></code> |
| is a valid expression returning a type that is convertible to <code class="computeroutput"><span class="keyword">bool</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Returns the lexicographical |
| comparison of between <code class="computeroutput"><span class="identifier">lhs</span></code> |
| and <code class="computeroutput"><span class="identifier">rhs</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">TN</span><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">U1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">UN</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=(</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">T1</span><span class="special">,</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">TN</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">U1</span><span class="special">,</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">UN</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: For all <code class="computeroutput"><span class="identifier">i</span></code>, |
| <code class="computeroutput"><span class="number">1</span> <span class="special"><=</span> |
| <span class="identifier">i</span> <span class="special"><</span> |
| <span class="identifier">N</span></code>, <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special">==</span> <a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">rhs</span><span class="special">)</span></code> |
| is a valid expression returning a type that is convertible to <code class="computeroutput"><span class="keyword">bool</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Returns <code class="computeroutput"><span class="special">!(</span><span class="identifier">lhs</span> <span class="special">==</span> <span class="identifier">rhs</span><span class="special">)</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">TN</span><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">U1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">UN</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><=(</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">T1</span><span class="special">,</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">TN</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">U1</span><span class="special">,</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">UN</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: For all <code class="computeroutput"><span class="identifier">i</span></code>, |
| <code class="computeroutput"><span class="number">1</span> <span class="special"><=</span> |
| <span class="identifier">i</span> <span class="special"><</span> |
| <span class="identifier">N</span></code>, <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">rhs</span><span class="special">)</span> <span class="special"><</span> <a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">lhs</span><span class="special">)</span></code> |
| is a valid expression returning a type that is convertible to <code class="computeroutput"><span class="keyword">bool</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Returns <code class="computeroutput"><span class="special">!(</span><span class="identifier">rhs</span> <span class="special"><</span> <span class="identifier">lhs</span><span class="special">)</span></code> |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">TN</span><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">U1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">UN</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>(</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">T1</span><span class="special">,</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">TN</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">U1</span><span class="special">,</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">UN</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: For all <code class="computeroutput"><span class="identifier">i</span></code>, |
| <code class="computeroutput"><span class="number">1</span> <span class="special"><=</span> |
| <span class="identifier">i</span> <span class="special"><</span> |
| <span class="identifier">N</span></code>, <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">rhs</span><span class="special">)</span> <span class="special"><</span> <a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">lhs</span><span class="special">)</span></code> |
| is a valid expression returning a type that is convertible to <code class="computeroutput"><span class="keyword">bool</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Returns <code class="computeroutput"><span class="identifier">rhs</span> |
| <span class="special"><</span> <span class="identifier">lhs</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">TN</span><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">U1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">UN</span><span class="special">></span> |
| <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">>=(</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">T1</span><span class="special">,</span> <span class="identifier">T2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">TN</span><span class="special">>&</span> <span class="identifier">lhs</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">tuple</span><span class="special"><</span><span class="identifier">U1</span><span class="special">,</span> <span class="identifier">U2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">UN</span><span class="special">>&</span> <span class="identifier">rhs</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: For all <code class="computeroutput"><span class="identifier">i</span></code>, |
| <code class="computeroutput"><span class="number">1</span> <span class="special"><=</span> |
| <span class="identifier">i</span> <span class="special"><</span> |
| <span class="identifier">N</span></code>, <code class="computeroutput"><a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">lhs</span><span class="special">)</span> <span class="special"><</span> <a class="link" href="element_access.html" title="Element access"><code class="computeroutput"><span class="identifier">get</span></code></a><span class="special"><</span><span class="identifier">i</span><span class="special">>(</span><span class="identifier">rhs</span><span class="special">)</span></code> |
| is a valid expression returning a type that is convertible to <code class="computeroutput"><span class="keyword">bool</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Returns <code class="computeroutput"><span class="special">!(</span><span class="identifier">lhs</span> <span class="special"><</span> <span class="identifier">rhs</span><span class="special">)</span></code>. |
| </p> |
| </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 © 2001-2007 Joel de Guzman, Dan Marsden, Tobias |
| Schwinger<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> |
| </tr></table> |
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