

//  (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 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

