boost/type_traits/is_member_pointer.hpp
// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes,
// Howard Hinnant and John Maddock 2000.
// (C) Copyright Mat Marcus, Jesse Jones and Adobe Systems Inc 2001
// 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.
// Fixed is_pointer, is_reference, is_const, is_volatile, is_same,
// is_member_pointer based on the Simulated Partial Specialization work
// of Mat Marcus and Jesse Jones. See http://opensource.adobe.com or
// http://groups.yahoo.com/group/boost/message/5441
// Some workarounds in here use ideas suggested from "Generic<Programming>:
// Mappings between Types and Values"
// by Andrei Alexandrescu (see http://www.cuj.com/experts/1810/alexandr.html).
#ifndef BOOST_TT_IS_MEMBER_POINTER_HPP_INCLUDED
#define BOOST_TT_IS_MEMBER_POINTER_HPP_INCLUDED
#include <boost/type_traits/config.hpp>
#include <boost/detail/workaround.hpp>
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !BOOST_WORKAROUND(__BORLANDC__, < 0x600)
# include <boost/type_traits/is_member_function_pointer.hpp>
#else
# include <boost/type_traits/is_reference.hpp>
# include <boost/type_traits/is_array.hpp>
# include <boost/type_traits/detail/is_mem_fun_pointer_tester.hpp>
# include <boost/type_traits/detail/yes_no_type.hpp>
# include <boost/type_traits/detail/false_result.hpp>
# include <boost/type_traits/detail/ice_or.hpp>
#endif
// should be the last #include
#include <boost/type_traits/detail/bool_trait_def.hpp>
namespace boost {
#if defined( __CODEGEARC__ )
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_member_pointer,T,__is_member_pointer(T))
#elif BOOST_WORKAROUND(__BORLANDC__, < 0x600)
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_member_pointer,T,false)
BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_2(typename T,typename U,is_member_pointer,U T::*,true)
#elif !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_member_pointer,T,::boost::is_member_function_pointer<T>::value)
BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_2(typename T,typename U,is_member_pointer,U T::*,true)
#if !BOOST_WORKAROUND(__MWERKS__,<=0x3003)
BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_2(typename T,typename U,is_member_pointer,U T::*const,true)
BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_2(typename T,typename U,is_member_pointer,U T::*volatile,true)
BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_2(typename T,typename U,is_member_pointer,U T::*const volatile,true)
#endif
#else // no partial template specialization
namespace detail {
template <typename R, typename T>
::boost::type_traits::yes_type BOOST_TT_DECL is_member_pointer_tester(R T::*const volatile*);
::boost::type_traits::no_type BOOST_TT_DECL is_member_pointer_tester(...);
template <bool>
struct is_member_pointer_select
: ::boost::type_traits::false_result
{
};
template <>
struct is_member_pointer_select<false>
{
template <typename T> struct result_
{
static T* make_t();
BOOST_STATIC_CONSTANT(
bool, value =
(::boost::type_traits::ice_or<
(1 == sizeof(::boost::type_traits::is_mem_fun_pointer_tester(make_t()))),
(1 == sizeof(is_member_pointer_tester(make_t())))
>::value) );
};
};
template <typename T>
struct is_member_pointer_impl
: is_member_pointer_select<
::boost::type_traits::ice_or<
::boost::is_reference<T>::value
, ::boost::is_array<T>::value
>::value
>::template result_<T>
{
};
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_pointer,void,false)
#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_pointer,void const,false)
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_pointer,void volatile,false)
BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_pointer,void const volatile,false)
#endif
} // namespace detail
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_member_pointer,T,::boost::detail::is_member_pointer_impl<T>::value)
#endif // __BORLANDC__
} // namespace boost
#include <boost/type_traits/detail/bool_trait_undef.hpp>
#endif // BOOST_TT_IS_MEMBER_POINTER_HPP_INCLUDED