ceph/src/boost/libs/type_traits/include/boost/type_traits/is_integral.hpp

   1
   2 //  (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
   3 //  Use, modification and distribution are subject to the Boost Software License,
   4 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 //  http://www.boost.org/LICENSE_1_0.txt).
   6 //
   7 //  See http://www.boost.org/libs/type_traits for most recent version including documentation.
   8
   9 #ifndef BOOST_TT_IS_INTEGRAL_HPP_INCLUDED
  10 #define BOOST_TT_IS_INTEGRAL_HPP_INCLUDED
  11
  12 #include <boost/config.hpp>
  13 #include <boost/type_traits/integral_constant.hpp>
  14
  15 namespace boost {
  16
  17 #if defined( __CODEGEARC__ )
  18    template <class T>
  19    struct is_integral : public integral_constant<bool, __is_integral(T)> {};
  20 #else
  21
  22 template <class T> struct is_integral : public false_type {};
  23 template <class T> struct is_integral<const T> : public is_integral<T> {};
  24 template <class T> struct is_integral<volatile const T> : public is_integral<T>{};
  25 template <class T> struct is_integral<volatile T> : public is_integral<T>{};
  26
  27 //* is a type T an [cv-qualified-] integral type described in the standard (3.9.1p3)
  28 // as an extension we include long long, as this is likely to be added to the
  29 // standard at a later date
  30 template<> struct is_integral<unsigned char> : public true_type {};
  31 template<> struct is_integral<unsigned short> : public true_type{};
  32 template<> struct is_integral<unsigned int> : public true_type{};
  33 template<> struct is_integral<unsigned long> : public true_type{};
  34
  35 template<> struct is_integral<signed char> : public true_type{};
  36 template<> struct is_integral<short> : public true_type{};
  37 template<> struct is_integral<int> : public true_type{};
  38 template<> struct is_integral<long> : public true_type{};
  39
  40 template<> struct is_integral<char> : public true_type{};
  41 template<> struct is_integral<bool> : public true_type{};
  42
  43 #ifndef BOOST_NO_INTRINSIC_WCHAR_T
  44 // If the following line fails to compile and you're using the Intel
  45 // compiler, see http://lists.boost.org/MailArchives/boost-users/msg06567.php,
  46 // and define BOOST_NO_INTRINSIC_WCHAR_T on the command line.
  47 template<> struct is_integral<wchar_t> : public true_type{};
  48 #endif
  49
  50 // Same set of integral types as in boost/type_traits/integral_promotion.hpp.
  51 // Please, keep in sync. -- Alexander Nasonov
  52 #if (defined(BOOST_INTEL_CXX_VERSION) && defined(_MSC_VER) && (BOOST_INTEL_CXX_VERSION <= 600)) \
  53     || (defined(__BORLANDC__) && (__BORLANDC__ == 0x600) && (_MSC_VER < 1300))
  54 template<> struct is_integral<unsigned __int8> : public true_type{};
  55 template<> struct is_integral<unsigned __int16> : public true_type{};
  56 template<> struct is_integral<unsigned __int32> : public true_type{};
  57 template<> struct is_integral<__int8> : public true_type{};
  58 template<> struct is_integral<__int16> : public true_type{};
  59 template<> struct is_integral<__int32> : public true_type{};
  60 #ifdef __BORLANDC__
  61 template<> struct is_integral<unsigned __int64> : public true_type{};
  62 template<> struct is_integral<__int64> : public true_type{};
  63 #endif
  64 #endif
  65
  66 # if defined(BOOST_HAS_LONG_LONG)
  67 template<> struct is_integral< ::boost::ulong_long_type> : public true_type{};
  68 template<> struct is_integral< ::boost::long_long_type> : public true_type{};
  69 #elif defined(BOOST_HAS_MS_INT64)
  70 template<> struct is_integral<unsigned __int64> : public true_type{};
  71 template<> struct is_integral<__int64> : public true_type{};
  72 #endif
  73
  74 #ifdef BOOST_HAS_INT128
  75 template<> struct is_integral<boost::int128_type> : public true_type{};
  76 template<> struct is_integral<boost::uint128_type> : public true_type{};
  77 #endif
  78 #ifndef BOOST_NO_CXX11_CHAR16_T
  79 template<> struct is_integral<char16_t> : public true_type{};
  80 #endif
  81 #ifndef BOOST_NO_CXX11_CHAR32_T
  82 template<> struct is_integral<char32_t> : public true_type{};
  83 #endif
  84
  85 #endif  // non-CodeGear implementation
  86
  87 } // namespace boost
  88
  89 #endif // BOOST_TT_IS_INTEGRAL_HPP_INCLUDED