libs/type_traits/doc/is_same.qbk
[/ 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_same is_same] template <class T, class U> struct is_same : public __tof {}; __inherit If T and U are the same types then inherits from __true_type, otherwise inherits from __false_type. __header ` #include <boost/type_traits/is_same.hpp>` or ` #include <boost/type_traits.hpp>` __compat If the compiler does not support partial-specialization of class templates, then this template can not be used with abstract, incomplete or function types. __examples [:`is_same<int, int>` inherits from `__true_type`.] [:`is_same<int, int>::type` is the type `__true_type`.] [:`is_same<int, int>::value` is an integral constant expression that evaluates to /true/.] [:`is_same<int const, int>::value` is an integral constant expression that evaluates to /false/.] [:`is_same<int&, int>::value` is an integral constant expression that evaluates to /false/.] [:`is_same<T, T>::value_type` is the type `bool`.] [endsect]