// (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 <boost/type_traits/detail/size_t_trait_def.hpp> | |
namespace boost { | |
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 = (::boost::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 = (::boost::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 = (::boost::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 = (::boost::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 = (::boost::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 = (::boost::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 = (::boost::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 = (::boost::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 | |
} // ::boost::detail | |
template <class T, std::size_t N = 0> | |
struct extent | |
: public ::boost::integral_constant<std::size_t, ::boost::detail::extent_imp<T,N>::value> | |
{ | |
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) | |
typedef ::boost::integral_constant<std::size_t, ::boost::detail::extent_imp<T,N>::value> base_; | |
using base_::value; | |
#endif | |
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,extent,(T)) | |
}; | |
} // namespace boost | |
#include <boost/type_traits/detail/size_t_trait_undef.hpp> | |
#endif // BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED |