| |
| // (C) Copyright John Maddock 2005. |
| // 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_EXTENT_HPP_INCLUDED |
| #define BOOST_TT_EXTENT_HPP_INCLUDED |
| |
| // should be the last #include |
| #include <ndnboost/type_traits/detail/size_t_trait_def.hpp> |
| |
| namespace ndnboost { |
| |
| namespace detail{ |
| |
| #if defined( __CODEGEARC__ ) |
| // wrap the impl as main trait provides additional MPL lambda support |
| template < typename T, std::size_t N > |
| struct extent_imp { |
| static const std::size_t value = __array_extent(T, N); |
| }; |
| |
| #else |
| |
| template <class T, std::size_t N> |
| struct extent_imp |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = 0); |
| }; |
| #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS) |
| template <class T, std::size_t R, std::size_t N> |
| struct extent_imp<T[R], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| |
| template <class T, std::size_t R, std::size_t N> |
| struct extent_imp<T const[R], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| |
| template <class T, std::size_t R, std::size_t N> |
| struct extent_imp<T volatile[R], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| |
| template <class T, std::size_t R, std::size_t N> |
| struct extent_imp<T const volatile[R], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| |
| template <class T, std::size_t R> |
| struct extent_imp<T[R],0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = R); |
| }; |
| |
| template <class T, std::size_t R> |
| struct extent_imp<T const[R], 0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = R); |
| }; |
| |
| template <class T, std::size_t R> |
| struct extent_imp<T volatile[R], 0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = R); |
| }; |
| |
| template <class T, std::size_t R> |
| struct extent_imp<T const volatile[R], 0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = R); |
| }; |
| |
| #if !BOOST_WORKAROUND(__BORLANDC__, < 0x600) && !defined(__IBMCPP__) && !BOOST_WORKAROUND(__DMC__, BOOST_TESTED_AT(0x840)) && !defined(__MWERKS__) |
| template <class T, std::size_t N> |
| struct extent_imp<T[], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| template <class T, std::size_t N> |
| struct extent_imp<T const[], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| template <class T, std::size_t N> |
| struct extent_imp<T volatile[], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| template <class T, std::size_t N> |
| struct extent_imp<T const volatile[], N> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = (::ndnboost::detail::extent_imp<T, N-1>::value)); |
| }; |
| template <class T> |
| struct extent_imp<T[], 0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = 0); |
| }; |
| template <class T> |
| struct extent_imp<T const[], 0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = 0); |
| }; |
| template <class T> |
| struct extent_imp<T volatile[], 0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = 0); |
| }; |
| template <class T> |
| struct extent_imp<T const volatile[], 0> |
| { |
| BOOST_STATIC_CONSTANT(std::size_t, value = 0); |
| }; |
| #endif |
| #endif |
| |
| #endif // non-CodeGear implementation |
| } // ::ndnboost::detail |
| |
| template <class T, std::size_t N = 0> |
| struct extent |
| : public ::ndnboost::integral_constant<std::size_t, ::ndnboost::detail::extent_imp<T,N>::value> |
| { |
| #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) |
| typedef ::ndnboost::integral_constant<std::size_t, ::ndnboost::detail::extent_imp<T,N>::value> base_; |
| using base_::value; |
| #endif |
| BOOST_MPL_AUX_LAMBDA_SUPPORT(1,extent,(T)) |
| }; |
| |
| } // namespace ndnboost |
| |
| #include <ndnboost/type_traits/detail/size_t_trait_undef.hpp> |
| |
| #endif // BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED |