| |
| // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. |
| // Use, modification and distribution are subject to 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). |
| // |
| // See http://www.boost.org/libs/type_traits for most recent version including documentation. |
| |
| #ifndef BOOST_TT_IS_VOID_HPP_INCLUDED |
| #define BOOST_TT_IS_VOID_HPP_INCLUDED |
| |
| #include <boost/type_traits/integral_constant.hpp> |
| |
| namespace boost { |
| |
| template <class T> |
| struct is_void : public false_type {}; |
| |
| template<> struct is_void<void> : public true_type {}; |
| template<> struct is_void<const void> : public true_type{}; |
| template<> struct is_void<const volatile void> : public true_type{}; |
| template<> struct is_void<volatile void> : public true_type{}; |
| |
| } // namespace boost |
| |
| #endif // BOOST_TT_IS_VOID_HPP_INCLUDED |
