3rdparty/boost/boost/type_traits/detail/is_member_function_pointer_cxx_03.hpp

   1
   2 //  (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
   3 //  Hinnant & John Maddock 2000.
   4 //  Use, modification and distribution are subject to the Boost Software License,
   5 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt).
   7 //
   8 //  See http://www.boost.org/libs/type_traits for most recent version including documentation.
   9
  10
  11 #ifndef BOOST_TT_IS_MEMBER_FUNCTION_POINTER_CXX_03_HPP_INCLUDED
  12 #define BOOST_TT_IS_MEMBER_FUNCTION_POINTER_CXX_03_HPP_INCLUDED
  13
  14 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x600) && !defined(BOOST_TT_TEST_MS_FUNC_SIGS)
  15    //
  16    // Note: we use the "workaround" version for MSVC because it works for
  17    // __stdcall etc function types, where as the partial specialisation
  18    // version does not do so.
  19    //
  20 #   include <boost/type_traits/detail/is_mem_fun_pointer_impl.hpp>
  21 #   include <boost/type_traits/remove_cv.hpp>
  22 #   include <boost/type_traits/integral_constant.hpp>
  23 #else
  24 #   include <boost/type_traits/is_reference.hpp>
  25 #   include <boost/type_traits/is_array.hpp>
  26 #   include <boost/type_traits/detail/yes_no_type.hpp>
  27 #   include <boost/type_traits/detail/is_mem_fun_pointer_tester.hpp>
  28 #endif
  29
  30 namespace boost {
  31
  32 #if defined( __CODEGEARC__ )
  33 template <class T> struct is_member_function_pointer : public integral_constant<bool, __is_member_function_pointer( T )> {};
  34 #elif !BOOST_WORKAROUND(__BORLANDC__, < 0x600) && !defined(BOOST_TT_TEST_MS_FUNC_SIGS)
  35
  36 template <class T> struct is_member_function_pointer
  37    : public ::boost::integral_constant<bool, ::boost::type_traits::is_mem_fun_pointer_impl<typename remove_cv<T>::type>::value>{};
  38
  39 #else
  40
  41 namespace detail {
  42
  43 #ifndef __BORLANDC__
  44
  45 template <bool>
  46 struct is_mem_fun_pointer_select
  47 {
  48    template <class T> struct result_ : public false_type{};
  49 };
  50
  51 template <>
  52 struct is_mem_fun_pointer_select<false>
  53 {
  54     template <typename T> struct result_
  55     {
  56 #if BOOST_WORKAROUND(BOOST_MSVC_FULL_VER, >= 140050000)
  57 #pragma warning(push)
  58 #pragma warning(disable:6334)
  59 #endif
  60         static T* make_t;
  61         typedef result_<T> self_type;
  62
  63         BOOST_STATIC_CONSTANT(
  64             bool, value = (
  65                 1 == sizeof(::boost::type_traits::is_mem_fun_pointer_tester(self_type::make_t))
  66             ));
  67 #if BOOST_WORKAROUND(BOOST_MSVC_FULL_VER, >= 140050000)
  68 #pragma warning(pop)
  69 #endif
  70     };
  71 };
  72
  73 template <typename T>
  74 struct is_member_function_pointer_impl
  75     : public is_mem_fun_pointer_select<
  76       ::boost::is_reference<T>::value || ::boost::is_array<T>::value>::template result_<T>{};
  77
  78 template <typename T>
  79 struct is_member_function_pointer_impl<T&> : public false_type{};
  80
  81 #else // Borland C++
  82
  83 template <typename T>
  84 struct is_member_function_pointer_impl
  85 {
  86    static T* m_t;
  87    BOOST_STATIC_CONSTANT(
  88               bool, value =
  89                (1 == sizeof(type_traits::is_mem_fun_pointer_tester(m_t))) );
  90 };
  91
  92 template <typename T>
  93 struct is_member_function_pointer_impl<T&>
  94 {
  95    BOOST_STATIC_CONSTANT(bool, value = false);
  96 };
  97
  98 #endif
  99
 100 template<> struct is_member_function_pointer_impl<void> : public false_type{};
 101 #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
 102 template<> struct is_member_function_pointer_impl<void const> : public false_type{};
 103 template<> struct is_member_function_pointer_impl<void const volatile> : public false_type{};
 104 template<> struct is_member_function_pointer_impl<void volatile> : public false_type{};
 105 #endif
 106
 107 } // namespace detail
 108
 109 template <class T>
 110 struct is_member_function_pointer
 111    : public integral_constant<bool, ::boost::detail::is_member_function_pointer_impl<T>::value>{};
 112
 113 #endif
 114
 115 } // namespace boost
 116
 117 #endif // BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED