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| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="fusion.tuple.class_template_tuple.construction"></a><a class="link" href="construction.html" title="Construction">Construction</a> |
| </h4></div></div></div> |
| <a name="fusion.tuple.class_template_tuple.construction.description"></a><h6> |
| <a name="id1053608"></a> |
| <a class="link" href="construction.html#fusion.tuple.class_template_tuple.construction.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> type provides a default constructor, a constructor that takes |
| initializers for all of its elements, a copy constructor, and a converting |
| copy constructor. The details of the various constructors are described |
| in this section. |
| </p> |
| <a name="fusion.tuple.class_template_tuple.construction.specification"></a><h6> |
| <a name="id1053636"></a> |
| <a class="link" href="construction.html#fusion.tuple.class_template_tuple.construction.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="identifier">tuple</span><span class="special">();</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: Each <code class="computeroutput"><span class="identifier">Ti</span></code> |
| is default constructable. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Default initializes each element |
| of the tuple. |
| </p> |
| <pre class="programlisting"><span class="identifier">tuple</span><span class="special">(</span><span class="identifier">P1</span><span class="special">,</span><span class="identifier">P2</span><span class="special">,...,</span><span class="identifier">PN</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: Each <code class="computeroutput"><span class="identifier">Pi</span></code> |
| is <code class="computeroutput"><span class="identifier">Ti</span></code> if <code class="computeroutput"><span class="identifier">Ti</span></code> is a reference type, <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">Ti</span><span class="special">&</span></code> otherwise. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Copy initializes each element |
| with the corresponding parameter. |
| </p> |
| <pre class="programlisting"><span class="identifier">tuple</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">tuple</span><span class="special">&</span> <span class="identifier">t</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: Each <code class="computeroutput"><span class="identifier">Ti</span></code> |
| should be copy constructable. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Copy constructs each element |
| of <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> |
| with the corresponding element of <code class="computeroutput"><span class="identifier">t</span></code>. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</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="identifier">tuple</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">t</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requirements</strong></span>: Each <code class="computeroutput"><span class="identifier">Ti</span></code> |
| shall be constructible from the corresponding <code class="computeroutput"><span class="identifier">Ui</span></code>. |
| </p> |
| <p> |
| <span class="bold"><strong>Semantics</strong></span>: Constructs each element of |
| <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code> |
| with the corresponding element of <code class="computeroutput"><span class="identifier">t</span></code>. |
| </p> |
| </div> |
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| <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>) |
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