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Utility/declval: update history.

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[SVN r78730]
This commit is contained in:
Vicente J. Botet Escriba 2012-05-28 19:00:53 +00:00
parent 88e7d86270
commit 2fc827ad23
2 changed files with 17 additions and 21 deletions
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16
doc/declval.qbk
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@ -1,7 +1,6 @@
[/
/ Copyright (c) 2008 Howard Hinnant
/ Copyright (c) 2008 Beman Dawes
/ Copyright (c) 2009-20010 Vicente J. Botet Escriba
/ Copyright (c) 2009-20012 Vicente J. Botet Escriba
/
/ Distributed under the Boost Software License, Version 1.0. (See accompanying
/ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@ -10,10 +9,8 @@
[article Declval
[quickbook 1.5]
[authors [Hinnant, Howard]]
[authors [Dawes, Beman]]
[authors [Botet Escriba, Vicente J.]]
[copyright 2008 Howard Hinnant]
[copyright 2008 Beman Dawes]
[copyright 2009-2012 Vicente J. Botet Escriba]
[license
Distributed under the Boost Software License, Version 1.0.
@ -59,9 +56,9 @@ T is an lvalue-reference, otherwise an rvalue. To extend the domain of this func
typename std::add_rvalue_reference<T>::type declval(); // not used
which ensures that we can also use cv void as template parameter. The careful reader might have noticed that `declval()`
already exists under the name create() as part of the definition of the semantics of the type trait is_convertible in the C==0x standard.
already exists under the name create() as part of the definition of the semantics of the type trait is_convertible in the C++0x standard.
The provision of a new library component that allows the production of values in unevaluated expressions is considered as
The provision of a new library component that allows the production of values in unevaluated expressions is considered
important to realize constrained templates in C++0x where concepts are not available.
This extremely light-weight function is expected to be part of the daily tool-box of the C++0x programmer.
@ -77,7 +74,7 @@ This extremely light-weight function is expected to be part of the daily tool-bo
namespace boost {
template <typename T>
typename add_rvalue_reference<T>::type declval(); //noexcept; // as unevaluated operand
typename add_rvalue_reference<T>::type declval() noexcept; // as unevaluated operand
} // namespace boost
@ -96,7 +93,7 @@ The library provides the function template declval to simplify the definition of
template <class To, class From>
decltype(static_cast<To>(declval<From>())) convert(From&&);
Declares a function template convert which only participats in overloading if the type From can be explicitly converted to type To.
Declares a function template convert which only participates in overloading if the type From can be explicitly converted to type To.
[endsect]
@ -113,3 +110,6 @@ Fixes:
[endsect]

22
doc/html/declval.html
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@ -27,17 +27,13 @@
<span class="firstname">Howard</span> <span class="surname">Hinnant</span>
</h3></div>
<div class="author"><h3 class="author">
<span class="firstname">Beman</span> <span class="surname">Dawes</span>
</h3></div>
<div class="author"><h3 class="author">
<span class="firstname">Vicente J.</span> <span class="surname">Botet Escriba</span>
</h3></div>
</div></div>
<div><p class="copyright">Copyright &#169; 2008 Howard Hinnant</p></div>
<div><p class="copyright">Copyright &#169; 2008 Beman Dawes</p></div>
<div><p class="copyright">Copyright &#169; 2009 -2012 Vicente J. Botet Escriba</p></div>
<div><div class="legalnotice">
<a name="idp13448880"></a><p>
<a name="idp13449552"></a><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>
@ -104,13 +100,13 @@
which ensures that we can also use cv void as template parameter. The careful
reader might have noticed that <code class="computeroutput"><span class="identifier">declval</span><span class="special">()</span></code> already exists under the name create() as
part of the definition of the semantics of the type trait is_convertible in
the C==0x standard.
the C++0x standard.
</p>
<p>
The provision of a new library component that allows the production of values
in unevaluated expressions is considered as important to realize constrained
templates in C++0x where concepts are not available. This extremely light-weight
function is expected to be part of the daily tool-box of the C++0x programmer.
in unevaluated expressions is considered important to realize constrained templates
in C++0x where concepts are not available. This extremely light-weight function
is expected to be part of the daily tool-box of the C++0x programmer.
</p>
</div>
<div class="section">
@ -123,7 +119,7 @@
<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">typename</span> <span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">//noexcept; // as unevaluated operand
<span class="keyword">typename</span> <span class="identifier">add_rvalue_reference</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">()</span> <span class="identifier">noexcept</span><span class="special">;</span> <span class="comment">// as unevaluated operand
</span>
<span class="special">}</span> <span class="comment">// namespace boost
</span></pre>
@ -149,7 +145,7 @@
<span class="identifier">decltype</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span><span class="identifier">To</span><span class="special">&gt;(</span><span class="identifier">declval</span><span class="special">&lt;</span><span class="identifier">From</span><span class="special">&gt;()))</span> <span class="identifier">convert</span><span class="special">(</span><span class="identifier">From</span><span class="special">&amp;&amp;);</span>
</pre>
<p>
Declares a function template convert which only participats in overloading
Declares a function template convert which only participates in overloading
if the type From can be explicitly converted to type To.
</p>
</div>
@ -158,7 +154,7 @@
<a name="declval.history"></a><a class="link" href="declval.html#declval.history" title="History">History</a>
</h2></div></div></div>
<a name="declval.history.boost_1_50"></a><h4>
<a name="idp13551456"></a>
<a name="idp13553216"></a>
<a class="link" href="declval.html#declval.history.boost_1_50">boost 1.50</a>
</h4>
<p>
@ -171,7 +167,7 @@
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"><p><small>Last revised: April 01, 2012 at 20:13:37 GMT</small></p></td>
<td align="left"><p><small>Last revised: May 28, 2012 at 18:59:06 GMT</small></p></td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>