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Boost-Commit : |
Subject: [Boost-commit] svn:boost r65380 - in sandbox/chrono/libs/type_traits_ext/doc: . html
From: vicente.botet_at_[hidden]
Date: 2010-09-11 03:34:28
Author: viboes
Date: 2010-09-11 03:34:23 EDT (Sat, 11 Sep 2010)
New Revision: 65380
URL: http://svn.boost.org/trac/boost/changeset/65380
Log:
update doc
Added:
sandbox/chrono/libs/type_traits_ext/doc/index.html (contents, props changed)
Text files modified:
sandbox/chrono/libs/type_traits_ext/doc/html/index.html | 184 +++++++++++++++++++++++++++++++--------
sandbox/chrono/libs/type_traits_ext/doc/type_traits_ext.qbk | 61 ++++++++++++
2 files changed, 203 insertions(+), 42 deletions(-)
Modified: sandbox/chrono/libs/type_traits_ext/doc/html/index.html
==============================================================================
--- sandbox/chrono/libs/type_traits_ext/doc/html/index.html (original)
+++ sandbox/chrono/libs/type_traits_ext/doc/html/index.html 2010-09-11 03:34:23 EDT (Sat, 11 Sep 2010)
@@ -58,9 +58,8 @@
<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.getting_started"> Getting
Started</a></span></dt>
<dt><span class="section">Tutorial</span></dt>
+<dt><span class="section">Examples</span></dt>
</dl></dd>
-<dt><span class="section">Examples</span></dt>
-<dd><dl><dt><span class="section">Common type</span></dt></dl></dd>
<dt><span class="section"> Reference </span></dt>
<dd><dl>
<dt><span class="section"><a href="index.html#boost_typetraits_ext.reference.add_rvalue_reference_hpp">
@@ -184,6 +183,64 @@
very informative and provides motivation for key design decisions for <a href="index.html#boost_typetraits_ext.reference.common_type_hpp.common_type" title="
Class Template common_type<>"><code class="computeroutput"><span class="identifier">common_type</span></code></a>.
</p>
+<a name="boost_typetraits_ext.overview.motivation.declval"></a><h4>
+<a name="id4948936"></a>
+ declval
+ </h4>
+<p>
+ The motivation of declval was introduced in <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2958.html#Value" target="_top">N2958:
+ Moving Swap Forward</a>. Here fowols a rewording of this chapter.
+ </p>
+<p>
+ With the provision of decltype, late-specified return types, and default
+ template-arguments for function templates a new generation of SFINAE patterns
+ will emerge to at least partially compensate the lack of concepts on the
+ C++0x timescale. Using this technique, it is sometimes necessary to obtain
+ an object of a known type in a non-using context, e.g. given the declaration
+ </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">></span>
+<span class="identifier">T</span><span class="special">&&</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">// not used
+</span></pre>
+<p>
+ as part of the function template declaration
+ </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">To</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">From</span><span class="special">></span>
+<span class="identifier">decltype</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special"><</span><span class="identifier">To</span><span class="special">>(</span><span class="identifier">declval</span><span class="special"><</span><span class="identifier">From</span><span class="special">>()))</span> <span class="identifier">convert</span><span class="special">(</span><span class="identifier">From</span><span class="special">&&);</span>
+</pre>
+<p>
+ or as part of a class template definition
+ </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span><span class="special">></span> <span class="keyword">class</span> <span class="identifier">result_of</span><span class="special">;</span>
+
+<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Fn</span><span class="special">,</span> <span class="keyword">class</span><span class="special">...</span> <span class="identifier">ArgTypes</span><span class="special">></span>
+<span class="keyword">struct</span> <span class="identifier">result_of</span><span class="special"><</span><span class="identifier">Fn</span><span class="special">(</span><span class="identifier">ArgTypes</span><span class="special">...)></span>
+<span class="special">{</span>
+ <span class="keyword">typedef</span> <span class="identifier">decltype</span><span class="special">(</span><span class="identifier">declval</span><span class="special"><</span><span class="identifier">Fn</span><span class="special">>()(</span><span class="identifier">declval</span><span class="special"><</span><span class="identifier">ArgTypes</span><span class="special">>()...))</span> <span class="identifier">type</span><span class="special">;</span>
+<span class="special">};</span>
+</pre>
+<p>
+ The role of the function template declval() is a transformation of a type
+ T into a value without using or evaluating this function. The name is supposed
+ to direct the reader's attention to the fact that the expression declval<T>()
+ is an lvalue if and only if T is an lvalue-reference, otherwise an rvalue.
+ To extend the domain of this function we can do a bit better by changing
+ its declaration to
+ </p>
+<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">></span>
+<span class="keyword">typename</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">add_rvalue_reference</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">declval</span><span class="special">();</span> <span class="comment">// not used
+</span></pre>
+<p>
+ 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.
+ </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.
+ </p>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h3 class="title">
@@ -225,6 +282,8 @@
<dt><span class="section">Tutorial</span></dt>
<dd><dl><dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.tutorial.common_type">Common
Type</a></span></dt></dl></dd>
+<dt><span class="section">Examples</span></dt>
+<dd><dl><dt><span class="section">common_type</span></dt></dl></dd>
</dl></div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h3 class="title">
@@ -241,7 +300,7 @@
Installing Boost.TypeTraits.Ext</a>
</h4></div></div></div>
<a name="boost_typetraits_ext.users_guide.getting_started.install.getting_boost_typetraits_ext_"></a><h5>
-<a name="id4949089"></a>
+<a name="id4949618"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.getting_boost_typetraits_ext_">Getting
Boost.TypeTraits.Ext </a>
</h5>
@@ -256,7 +315,7 @@
and follow the instructions there for anonymous SVN access.
</p>
<a name="boost_typetraits_ext.users_guide.getting_started.install.where_to_install_boost_typetraits_ext__"></a><h5>
-<a name="id4949151"></a>
+<a name="id4949681"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.where_to_install_boost_typetraits_ext__">Where
to install Boost.TypeTraits.Ext? </a>
</h5>
@@ -272,7 +331,7 @@
variable. Any help is welcome.
</p>
<a name="boost_typetraits_ext.users_guide.getting_started.install.building_boost_typetraits_ext_"></a><h5>
-<a name="id4949190"></a>
+<a name="id4949719"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.building_boost_typetraits_ext_">Building
Boost.TypeTraits.Ext </a>
</h5>
@@ -281,7 +340,7 @@
library. You don't need to compile it before use.
</p>
<a name="boost_typetraits_ext.users_guide.getting_started.install.requirements"></a><h5>
-<a name="id4949222"></a>
+<a name="id4949751"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.requirements">Requirements</a>
</h5>
<p>
@@ -319,7 +378,7 @@
</dl>
</div>
<a name="boost_typetraits_ext.users_guide.getting_started.install.building_an_executable_that_uses_boost_typetraits_ext_"></a><h5>
-<a name="id4949377"></a>
+<a name="id4942100"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.building_an_executable_that_uses_boost_typetraits_ext_">Building
an executable that uses Boost.TypeTraits.Ext </a>
</h5>
@@ -327,7 +386,7 @@
You don't need to link with any library.
</p>
<a name="boost_typetraits_ext.users_guide.getting_started.install.exceptions_safety_"></a><h5>
-<a name="id4949406"></a>
+<a name="id4942129"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.exceptions_safety_">Exceptions
safety </a>
</h5>
@@ -336,7 +395,7 @@
of exception safety as long as the underlying parameters provide it.
</p>
<a name="boost_typetraits_ext.users_guide.getting_started.install.thread_safety_"></a><h5>
-<a name="id4949434"></a>
+<a name="id4942157"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.thread_safety_">Thread
safety </a>
</h5>
@@ -344,7 +403,7 @@
All functions in the library are thread-unsafe except when noted explicitly.
</p>
<a name="boost_typetraits_ext.users_guide.getting_started.install.tested_compilers_"></a><h5>
-<a name="id4949460"></a>
+<a name="id4942183"></a>
<a href="index.html#boost_typetraits_ext.users_guide.getting_started.install.tested_compilers_">Tested
compilers </a>
</h5>
@@ -522,31 +581,46 @@
</div>
</div>
</div>
-</div>
-<div class="section" lang="en">
-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="boost_typetraits_ext.examples"></a>Examples
-</h2></div></div></div>
-<div class="toc"><dl>
-<dt><span class="section">Common type</span></dt>
-<dd><dl><dt><span class="section"><a href="index.html#boost_typetraits_ext.examples.common_type.min_utility">min
- utility</a></span></dt></dl></dd>
-</dl></div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h3 class="title">
-<a name="boost_typetraits_ext.examples.common_type"></a>Common type
+<a name="boost_typetraits_ext.users_guide.examples"></a>Examples
</h3></div></div></div>
-<div class="toc"><dl><dt><span class="section"><a href="index.html#boost_typetraits_ext.examples.common_type.min_utility">min
- utility</a></span></dt></dl></div>
+<div class="toc"><dl>
+<dt><span class="section">common_type</span></dt>
+<dd><dl>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.min_utility">min
+ utility</a></span></dt>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.std__minmax_considered_harmful_">std::minmax
+ considered harmful </a></span></dt>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.unique_ptr_s_relational_operator_functions">unique_ptr's
+ relational operator functions</a></span></dt>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.simplified_array_construction">Simplified
+ array construction</a></span></dt>
+</dl></dd>
+</dl></div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
-<a name="boost_typetraits_ext.examples.common_type.min_utility"></a><a href="index.html#boost_typetraits_ext.examples.common_type.min_utility" title="min
- utility">min
- utility</a>
+<a name="boost_typetraits_ext.users_guide.examples.common_type"></a>common_type
</h4></div></div></div>
+<div class="toc"><dl>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.min_utility">min
+ utility</a></span></dt>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.std__minmax_considered_harmful_">std::minmax
+ considered harmful </a></span></dt>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.unique_ptr_s_relational_operator_functions">unique_ptr's
+ relational operator functions</a></span></dt>
+<dt><span class="section"><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.simplified_array_construction">Simplified
+ array construction</a></span></dt>
+</dl></div>
+<div class="section" lang="en">
+<div class="titlepage"><div><div><h5 class="title">
+<a name="boost_typetraits_ext.users_guide.examples.common_type.min_utility"></a><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.min_utility" title="min
+ utility">min
+ utility</a>
+</h5></div></div></div>
<p>
- Returns the earliest time_point.
- </p>
+ Returns the earliest time_point.
+ </p>
<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Clock</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration1</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Duration2</span><span class="special">></span>
<span class="keyword">typename</span> <a href="index.html#boost_typetraits_ext.reference.common_type_hpp.common_type" title="
Class Template common_type<>"><code class="computeroutput"><span class="identifier">common_type</span></code></a><span class="special"><</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">time_point</span><span class="special"><</span><span class="identifier">Clock</span><span class="special">,</span> <span class="identifier">Duration1</span><span class="special">>,</span>
@@ -557,14 +631,47 @@
<span class="special">}</span>
</pre>
<p>
- Being able to <span class="bold"><strong>easily</strong></span> write this function
- is a major feature!
- </p>
+ Being able to <span class="bold"><strong>easily</strong></span> write this function
+ is a major feature!
+ </p>
<pre class="programlisting"><span class="identifier">BOOST_AUTO</span><span class="special">(</span><span class="identifier">t1</span><span class="special">,</span> <span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span> <span class="special">+</span> <span class="identifier">seconds</span><span class="special">(</span><span class="number">3</span><span class="special">));</span>
<span class="identifier">BOOST_AUTO</span><span class="special">(</span><span class="identifier">t2</span><span class="special">,</span> <span class="identifier">system_clock</span><span class="special">::</span><span class="identifier">now</span><span class="special">()</span> <span class="special">+</span> <span class="identifier">nanoseconds</span><span class="special">(</span><span class="number">3</span><span class="special">));</span>
<span class="identifier">BOOST_AUTO</span><span class="special">(</span><span class="identifier">t3</span><span class="special">,</span> <span class="identifier">min</span><span class="special">(</span><span class="identifier">t1</span><span class="special">,</span> <span class="identifier">t2</span><span class="special">));</span>
</pre>
</div>
+<div class="section" lang="en">
+<div class="titlepage"><div><div><h5 class="title">
+<a name="boost_typetraits_ext.users_guide.examples.common_type.std__minmax_considered_harmful_"></a><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.std__minmax_considered_harmful_" title="std::minmax
+ considered harmful ">std::minmax
+ considered harmful </a>
+</h5></div></div></div>
+<p>
+ See <a href="http://groups.google.com/group/comp.std.c++/browse_thread/thread/380e9ddf99b8985c?hl=en" target="_top">std::minmax
+ considered harmful </a>
+ </p>
+</div>
+<div class="section" lang="en">
+<div class="titlepage"><div><div><h5 class="title">
+<a name="boost_typetraits_ext.users_guide.examples.common_type.unique_ptr_s_relational_operator_functions"></a><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.unique_ptr_s_relational_operator_functions" title="unique_ptr's
+ relational operator functions">unique_ptr's
+ relational operator functions</a>
+</h5></div></div></div>
+<p>
+ See <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3133.html#1297" target="_top"><span class="bold"><strong>LGW 1297. unique_ptr's relational operator functions should
+ induce a total order</strong></span></a>.
+ </p>
+</div>
+<div class="section" lang="en">
+<div class="titlepage"><div><div><h5 class="title">
+<a name="boost_typetraits_ext.users_guide.examples.common_type.simplified_array_construction"></a><a href="index.html#boost_typetraits_ext.users_guide.examples.common_type.simplified_array_construction" title="Simplified
+ array construction">Simplified
+ array construction</a>
+</h5></div></div></div>
+<p>
+ See LGW 851. simplified array construction.
+ </p>
+</div>
+</div>
</div>
</div>
<div class="section" lang="en">
@@ -693,8 +800,7 @@
</li>
</ul></div>
<p>
- The default vaule behavior is as BOOST_COMMON_TYPE_USES_ARRAY_ASSERT was
- defined.
+ The default behavior is as BOOST_COMMON_TYPE_USES_ARRAY_ASSERT was defined.
</p>
<p>
When BOOST_COMMON_TYPE_USES_MPL_ASSERT is not defined the following symbols
@@ -887,7 +993,7 @@
C: Implementation Notes</a>
</h3></div></div></div>
<a name="boost_typetraits_ext.appendices.implementation.common_type_c__03_implementation"></a><h4>
-<a name="id4998178"></a>
+<a name="id4998770"></a>
<a href="index.html#boost_typetraits_ext.appendices.implementation.common_type_c__03_implementation">common_type
C++03 implementation</a>
</h4>
@@ -923,7 +1029,7 @@
<a name="boost_typetraits_ext.appendices.faq"></a> Appendix D: FAQ
</h3></div></div></div>
<a name="boost_typetraits_ext.appendices.faq.how_important_is_the_order_of_the_common_type_lt__gt__template_arguments_"></a><h4>
-<a name="id4998373"></a>
+<a name="id4998966"></a>
<a href="index.html#boost_typetraits_ext.appendices.faq.how_important_is_the_order_of_the_common_type_lt__gt__template_arguments_">How
important is the order of the common_type<> template arguments?</a>
</h4>
@@ -1003,7 +1109,7 @@
<span class="identifier">A</span><span class="special">></span></code>.
</p>
<a name="boost_typetraits_ext.appendices.faq.can_the_common_type_of_two_types_be_a_third_type_"></a><h4>
-<a name="id4999364"></a>
+<a name="id4999956"></a>
<a href="index.html#boost_typetraits_ext.appendices.faq.can_the_common_type_of_two_types_be_a_third_type_">Can
the common_type of two types be a third type?</a>
</h4>
@@ -1030,7 +1136,7 @@
<span class="identifier">B</span><span class="special">></span></code>.
</p>
<a name="boost_typetraits_ext.appendices.faq.how_common_type_behaves_with_pointers_"></a><h4>
-<a name="id4999693"></a>
+<a name="id5000285"></a>
<a href="index.html#boost_typetraits_ext.appendices.faq.how_common_type_behaves_with_pointers_">How
common_type behaves with pointers?</a>
</h4>
@@ -1318,7 +1424,7 @@
plans</a>
</h3></div></div></div>
<a name="boost_typetraits_ext.appendices.todo.for_later_releases"></a><h4>
-<a name="id5000523"></a>
+<a name="id5001116"></a>
<a href="index.html#boost_typetraits_ext.appendices.todo.for_later_releases">For
later releases</a>
</h4>
@@ -1330,7 +1436,7 @@
</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: September 07, 2010 at 15:13:54 GMT</small></p></td>
+<td align="left"><p><small>Last revised: September 11, 2010 at 07:28:21 GMT</small></p></td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>
Added: sandbox/chrono/libs/type_traits_ext/doc/index.html
==============================================================================
--- (empty file)
+++ sandbox/chrono/libs/type_traits_ext/doc/index.html 2010-09-11 03:34:23 EDT (Sat, 11 Sep 2010)
@@ -0,0 +1,9 @@
+<html>
+<head>
+<meta http-equiv="refresh" content="0; URL=html/index.html">
+</head>
+<body>
+Automatic redirection failed, please go to
+../../doc/html/type_traits_ext.html
+</body>
+</html>
Modified: sandbox/chrono/libs/type_traits_ext/doc/type_traits_ext.qbk
==============================================================================
--- sandbox/chrono/libs/type_traits_ext/doc/type_traits_ext.qbk (original)
+++ sandbox/chrono/libs/type_traits_ext/doc/type_traits_ext.qbk 2010-09-11 03:34:23 EDT (Sat, 11 Sep 2010)
@@ -89,8 +89,43 @@
See [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2661.htm [*N2661 - A Foundation to Sleep On]] which is very informative and provides motivation for key design decisions for __common_type__.
+[heading declval]
+
+The motivation of declval was introduced in [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2958.html#Value N2958: Moving Swap Forward]. Here fowols a rewording of this chapter.
+
+With the provision of decltype, late-specified return types, and default template-arguments for function templates a new generation of SFINAE patterns will emerge to at least partially compensate the lack of concepts on the C++0x timescale. Using this technique, it is sometimes necessary to obtain an object of a known type in a non-using context, e.g. given the declaration
+
+ template<class T>
+ T&& declval(); // not used
+
+as part of the function template declaration
+
+ template<class To, class From>
+ decltype(static_cast<To>(declval<From>())) convert(From&&);
+
+or as part of a class template definition
+
+ template<class> class result_of;
+
+ template<class Fn, class... ArgTypes>
+ struct result_of<Fn(ArgTypes...)>
+ {
+ typedef decltype(declval<Fn>()(declval<ArgTypes>()...)) type;
+ };
+
+The role of the function template declval() is a transformation of a type T into a value without using or evaluating this function. The name is supposed to direct the reader's attention to the fact that the expression declval<T>() is an lvalue if and only if T is an lvalue-reference, otherwise an rvalue. To extend the domain of this function we can do a bit better by changing its declaration to
+
+ template<class T>
+ 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.
+
+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.
+
[endsect]
+
[/==================]
[section Description]
[/==================]
@@ -293,12 +328,11 @@
[endsect]
-[endsect]
[/===============]
[section Examples]
[/===============]
-[section Common type]
+[section common_type]
[/==================]
[section min utility]
@@ -323,10 +357,31 @@
[endsect]
+[/==================]
+[section std::minmax considered harmful ]
+
+See [@http://groups.google.com/group/comp.std.c++/browse_thread/thread/380e9ddf99b8985c?hl=en
+std::minmax considered harmful ]
[endsect]
+[section unique_ptr's relational operator functions]
+See [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3133.html#1297 [*LGW 1297. unique_ptr's relational operator functions should induce a total order]].
+
+[endsect]
+
+[section Simplified array construction]
+
+See [@http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3135.html#851 [*LGW 851. simplified array construction]].
+
+[endsect]
+
+
+[endsect]
+
+
+[endsect]
[endsect]
[/=================]
@@ -386,7 +441,7 @@
* BOOST_COMMON_TYPE_USES_MPL_ASSERT: define it if you want to use Boost.MPL static asertions
* BOOST_COMMON_TYPE_USES_ARRAY_ASSERT: define it if you want to use internal static asertions
-The default vaule behavior is as BOOST_COMMON_TYPE_USES_ARRAY_ASSERT was defined.
+The default behavior is as BOOST_COMMON_TYPE_USES_ARRAY_ASSERT was defined.
When BOOST_COMMON_TYPE_USES_MPL_ASSERT is not defined the following symbols are defined as
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