diff options
Diffstat (limited to 'boost/type_traits/is_void.hpp')
| -rw-r--r-- | boost/type_traits/is_void.hpp | 26 |
1 files changed, 7 insertions, 19 deletions
diff --git a/boost/type_traits/is_void.hpp b/boost/type_traits/is_void.hpp index 6f6fbff6d9..183f8abf56 100644 --- a/boost/type_traits/is_void.hpp +++ b/boost/type_traits/is_void.hpp @@ -9,30 +9,18 @@ #ifndef BOOST_TT_IS_VOID_HPP_INCLUDED #define BOOST_TT_IS_VOID_HPP_INCLUDED -#include <boost/config.hpp> - -// should be the last #include -#include <boost/type_traits/detail/bool_trait_def.hpp> +#include <boost/type_traits/integral_constant.hpp> namespace boost { -//* is a type T void - is_void<T> -#if defined( __CODEGEARC__ ) -BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_void,T,__is_void(T)) -#else -BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_void,T,false) -BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void,true) - -#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS -BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void const,true) -BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void volatile,true) -BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void const volatile,true) -#endif +template <class T> +struct is_void : public false_type {}; -#endif // non-CodeGear implementation +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 -#include <boost/type_traits/detail/bool_trait_undef.hpp> - #endif // BOOST_TT_IS_VOID_HPP_INCLUDED |