boost/boost/type_traits/is_member_function_pointer.hpp

   1
   2 // (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
   3 // Hinnant & John Maddock 2000.  Permission to copy, use, modify,
   4 // sell and distribute this software is granted provided this
   5 // copyright notice appears in all copies. This software is provided
   6 // "as is" without express or implied warranty, and with no claim as
   7 // to its suitability for any purpose.
   8 //
   9 // See http://www.boost.org for most recent version including documentation.
  10
  11 #ifndef BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED
  12 #define BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED
  13
  14 #include "boost/type_traits/config.hpp"
  15
  16 #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(__BORLANDC__)
  17 #   include "boost/type_traits/detail/is_mem_fun_pointer_impl.hpp"
  18 #else
  19 #   include "boost/type_traits/is_reference.hpp"
  20 #   include "boost/type_traits/is_array.hpp"
  21 #   include "boost/type_traits/detail/is_mem_fun_pointer_tester.hpp"
  22 #   include "boost/type_traits/detail/yes_no_type.hpp"
  23 #   include "boost/type_traits/detail/false_result.hpp"
  24 #   include "boost/type_traits/detail/ice_or.hpp"
  25 #endif
  26
  27 // should be the last #include
  28 #include "boost/type_traits/detail/bool_trait_def.hpp"
  29
  30 namespace boost {
  31
  32 #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(__BORLANDC__)
  33
  34 BOOST_TT_AUX_BOOL_TRAIT_DEF1(
  35       is_member_function_pointer
  36     , T
  37     , ::boost::type_traits::is_mem_fun_pointer_impl<T>::value
  38     )
  39
  40 #else
  41
  42 namespace detail {
  43
  44 #ifndef __BORLANDC__
  45
  46 template <bool>
  47 struct is_mem_fun_pointer_select
  48     : ::boost::type_traits::false_result
  49 {
  50 };
  51
  52 template <>
  53 struct is_mem_fun_pointer_select<false>
  54 {
  55     template <typename T> struct result_
  56     {
  57         static T& make_t;
  58         typedef result_<T> self_type;
  59
  60         BOOST_STATIC_CONSTANT(
  61             bool, value = (
  62                 1 == sizeof(::boost::type_traits::is_mem_fun_pointer_tester(self_type::make_t))
  63             ));
  64     };
  65 };
  66
  67 template <typename T>
  68 struct is_member_function_pointer_impl
  69     : is_mem_fun_pointer_select<
  70           ::boost::type_traits::ice_or<
  71               ::boost::is_reference<T>::value
  72             , ::boost::is_array<T>::value
  73             >::value
  74         >::template result_<T>
  75 {
  76 };
  77
  78 #else // Borland C++
  79
  80 template <typename T>
  81 struct is_member_function_pointer_impl
  82 {
  83    static T& m_t;
  84    BOOST_STATIC_CONSTANT(
  85               bool, value =
  86                (1 == sizeof(type_traits::is_mem_fun_pointer_tester(m_t))) );
  87 };
  88
  89 template <typename T>
  90 struct is_member_function_pointer_impl<T&>
  91 {
  92    BOOST_STATIC_CONSTANT(bool, value = false);
  93 };
  94
  95 #endif
  96
  97 BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_function_pointer,void,false)
  98 #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
  99 BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_function_pointer,void const,false)
 100 BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_function_pointer,void volatile,false)
 101 BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_member_function_pointer,void const volatile,false)
 102 #endif
 103
 104 } // namespace detail
 105
 106 BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_member_function_pointer,T,::boost::detail::is_member_function_pointer_impl<T>::value)
 107
 108 #endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 109
 110 } // namespace boost
 111
 112 #include "boost/type_traits/detail/bool_trait_undef.hpp"
 113
 114 #endif // BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED