Squashed 'third_party/boostorg/type_traits/' content from commit 059ed88
Change-Id: I222c604dfa1db194bf53bc6aa1152fb16e83ce06
git-subtree-dir: third_party/boostorg/type_traits
git-subtree-split: 059ed8839da3fecd1e8b62cdc11be006f6346b5e
diff --git a/doc/is_signed.qbk b/doc/is_signed.qbk
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+[/
+ Copyright 2007 John Maddock.
+ 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).
+]
+
+[section:is_signed is_signed]
+
+ template <class T>
+ struct is_signed : public __tof {};
+
+__inherit If T is an signed integer type or an enumerated type with an
+underlying signed integer type, then inherits from __true_type,
+otherwise inherits from __false_type.
+
+__std_ref 3.9.1, 7.2.
+
+[all_compilers]
+
+__header ` #include <boost/type_traits/is_signed.hpp>` or ` #include <boost/type_traits.hpp>`
+
+__examples
+
+[:`is_signed<int>` inherits from `__true_type`.]
+
+[:`is_signed<int const volatile>::type` is the type `__true_type`.]
+
+[:`is_signed<unsigned int>::value` is an integral constant
+expression that evaluates to /false/.]
+
+[:`is_signed<myclass>::value` is an integral constant
+expression that evaluates to /false/.]
+
+[:`is_signed<char>::value` is an integral constant
+expression whose value depends upon the signedness of type `char`.]
+
+[:`is_signed<long long>::value` is an integral constant
+expression that evaluates to /true/.]
+
+[:`is_signed<T>::value_type` is the type `bool`.]
+
+[endsect]
+