From 8286ac511144e4f17d34eac9affb97e50646344a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Wed, 23 Jul 2014 15:25:44 +0200 Subject: Imported Upstream version 4.0.0 --- libcutl/cutl/details/boost/type_traits/is_enum.hpp | 189 +++++++++++++++++++++ 1 file changed, 189 insertions(+) create mode 100644 libcutl/cutl/details/boost/type_traits/is_enum.hpp (limited to 'libcutl/cutl/details/boost/type_traits/is_enum.hpp') diff --git a/libcutl/cutl/details/boost/type_traits/is_enum.hpp b/libcutl/cutl/details/boost/type_traits/is_enum.hpp new file mode 100644 index 0000000..a837de5 --- /dev/null +++ b/libcutl/cutl/details/boost/type_traits/is_enum.hpp @@ -0,0 +1,189 @@ + +// (C) Copyright Dave Abrahams, 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_ENUM_HPP_INCLUDED +#define BOOST_TT_IS_ENUM_HPP_INCLUDED + +#include +#ifndef BOOST_IS_ENUM +#include +#include +#include +#include +#include +#ifdef __GNUC__ +#include +#endif +#include +#if defined(BOOST_TT_HAS_CONFORMING_IS_CLASS_IMPLEMENTATION) +# include +# include +#endif +#endif + +// should be the last #include +#include + +namespace cutl_details_boost { + +#ifndef BOOST_IS_ENUM +#if !(defined(__BORLANDC__) && (__BORLANDC__ <= 0x551)) + +namespace detail { + +#if defined(BOOST_TT_HAS_CONFORMING_IS_CLASS_IMPLEMENTATION) + +template +struct is_class_or_union +{ + BOOST_STATIC_CONSTANT(bool, value = + (::cutl_details_boost::type_traits::ice_or< + ::cutl_details_boost::is_class::value + , ::cutl_details_boost::is_union::value + >::value)); +}; + +#else + +template +struct is_class_or_union +{ +# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x581))// we simply can't detect it this way. + BOOST_STATIC_CONSTANT(bool, value = false); +# else + template static ::cutl_details_boost::type_traits::yes_type is_class_or_union_tester(void(U::*)(void)); + +# if BOOST_WORKAROUND(BOOST_MSVC, == 1300) \ + || BOOST_WORKAROUND(__MWERKS__, <= 0x3000) // no SFINAE + static ::cutl_details_boost::type_traits::no_type is_class_or_union_tester(...); + BOOST_STATIC_CONSTANT( + bool, value = sizeof(is_class_or_union_tester(0)) == sizeof(::cutl_details_boost::type_traits::yes_type)); +# else + template + static ::cutl_details_boost::type_traits::no_type is_class_or_union_tester(...); + BOOST_STATIC_CONSTANT( + bool, value = sizeof(is_class_or_union_tester(0)) == sizeof(::cutl_details_boost::type_traits::yes_type)); +# endif +# endif +}; +#endif + +struct int_convertible +{ + int_convertible(int); +}; + +// Don't evaluate convertibility to int_convertible unless the type +// is non-arithmetic. This suppresses warnings with GCC. +template +struct is_enum_helper +{ + template struct type + { + BOOST_STATIC_CONSTANT(bool, value = false); + }; +}; + +template <> +struct is_enum_helper +{ + template struct type + : public ::cutl_details_boost::is_convertible::type,::cutl_details_boost::detail::int_convertible> + { + }; +}; + +template struct is_enum_impl +{ + //typedef ::cutl_details_boost::add_reference ar_t; + //typedef typename ar_t::type r_type; + +#if defined(__GNUC__) + +#ifdef BOOST_TT_HAS_CONFORMING_IS_CLASS_IMPLEMENTATION + + // We MUST check for is_class_or_union on conforming compilers in + // order to correctly deduce that noncopyable types are not enums + // (dwa 2002/04/15)... + BOOST_STATIC_CONSTANT(bool, selector = + (::cutl_details_boost::type_traits::ice_or< + ::cutl_details_boost::is_arithmetic::value + , ::cutl_details_boost::is_reference::value + , ::cutl_details_boost::is_function::value + , is_class_or_union::value + , is_array::value + >::value)); +#else + // ...however, not checking is_class_or_union on non-conforming + // compilers prevents a dependency recursion. + BOOST_STATIC_CONSTANT(bool, selector = + (::cutl_details_boost::type_traits::ice_or< + ::cutl_details_boost::is_arithmetic::value + , ::cutl_details_boost::is_reference::value + , ::cutl_details_boost::is_function::value + , is_array::value + >::value)); +#endif // BOOST_TT_HAS_CONFORMING_IS_CLASS_IMPLEMENTATION + +#else // !defined(__GNUC__): + + BOOST_STATIC_CONSTANT(bool, selector = + (::cutl_details_boost::type_traits::ice_or< + ::cutl_details_boost::is_arithmetic::value + , ::cutl_details_boost::is_reference::value + , is_class_or_union::value + , is_array::value + >::value)); + +#endif + +#if BOOST_WORKAROUND(__BORLANDC__, < 0x600) + typedef ::cutl_details_boost::detail::is_enum_helper< + ::cutl_details_boost::detail::is_enum_impl::selector + > se_t; +#else + typedef ::cutl_details_boost::detail::is_enum_helper se_t; +#endif + + typedef typename se_t::template type helper; + BOOST_STATIC_CONSTANT(bool, value = helper::value); +}; + +// these help on compilers with no partial specialization support: +BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_enum,void,false) +#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS +BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_enum,void const,false) +BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_enum,void volatile,false) +BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_enum,void const volatile,false) +#endif + +} // namespace detail + +BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_enum,T,::cutl_details_boost::detail::is_enum_impl::value) + +#else // __BORLANDC__ +// +// buggy is_convertible prevents working +// implementation of is_enum: +BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_enum,T,false) + +#endif + +#else // BOOST_IS_ENUM + +BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_enum,T,BOOST_IS_ENUM(T)) + +#endif + +} // namespace cutl_details_boost + +#include + +#endif // BOOST_TT_IS_ENUM_HPP_INCLUDED -- cgit v1.2.3