external_libraries/yaml-cpp-0.3.0/include/yaml-cpp/traits.h

   1 #ifndef TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
   2 #define TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
   3
   4 #if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
   5 #pragma once
   6 #endif
   7
   8
   9 namespace YAML
  10 {
  11         template <typename>
  12         struct is_numeric { enum { value = false }; };
  13
  14         template <> struct is_numeric <char> { enum { value = true }; };
  15         template <> struct is_numeric <unsigned char> { enum { value = true }; };
  16         template <> struct is_numeric <int> { enum { value = true }; };
  17         template <> struct is_numeric <unsigned int> { enum { value = true }; };
  18         template <> struct is_numeric <long int> { enum { value = true }; };
  19         template <> struct is_numeric <unsigned long int> { enum { value = true }; };
  20         template <> struct is_numeric <short int> { enum { value = true }; };
  21         template <> struct is_numeric <unsigned short int> { enum { value = true }; };
  22 #if defined(_MSC_VER) && (_MSC_VER < 1310)
  23         template <> struct is_numeric <__int64> { enum { value = true }; };
  24         template <> struct is_numeric <unsigned __int64> { enum { value = true }; };
  25 #else
  26         template <> struct is_numeric <long long> { enum { value = true }; };
  27         template <> struct is_numeric <unsigned long long> { enum { value = true }; };
  28 #endif
  29         template <> struct is_numeric <float> { enum { value = true }; };
  30         template <> struct is_numeric <double> { enum { value = true }; };
  31         template <> struct is_numeric <long double> { enum { value = true }; };
  32
  33         template <bool, class T = void>
  34         struct enable_if_c {
  35           typedef T type;
  36         };
  37
  38         template <class T>
  39         struct enable_if_c<false, T> {};
  40
  41         template <class Cond, class T = void>
  42         struct enable_if : public enable_if_c<Cond::value, T> {};
  43
  44         template <bool, class T = void>
  45         struct disable_if_c {
  46           typedef T type;
  47         };
  48
  49         template <class T>
  50         struct disable_if_c<true, T> {};
  51
  52         template <class Cond, class T = void>
  53         struct disable_if : public disable_if_c<Cond::value, T> {};
  54 }
  55
  56 #endif // TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
  57