traits.h

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#ifndef TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66_PM
#define TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66_PM
 
#if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
#pragma once
#endif
 
 
namespace YAML_PM
{
        template <typename>
        struct is_numeric { enum { value = false }; };
 
        template <> struct is_numeric <char> { enum { value = true }; };
        template <> struct is_numeric <unsigned char> { enum { value = true }; };
        template <> struct is_numeric <int> { enum { value = true }; };
        template <> struct is_numeric <unsigned int> { enum { value = true }; };
        template <> struct is_numeric <long int> { enum { value = true }; };
        template <> struct is_numeric <unsigned long int> { enum { value = true }; };
        template <> struct is_numeric <short int> { enum { value = true }; };
        template <> struct is_numeric <unsigned short int> { enum { value = true }; };
#if defined(_MSC_VER) && (_MSC_VER < 1310)
        template <> struct is_numeric <__int64> { enum { value = true }; };
        template <> struct is_numeric <unsigned __int64> { enum { value = true }; };
#else
        template <> struct is_numeric <long long> { enum { value = true }; };
        template <> struct is_numeric <unsigned long long> { enum { value = true }; };
#endif
        template <> struct is_numeric <float> { enum { value = true }; };
        template <> struct is_numeric <double> { enum { value = true }; };
        template <> struct is_numeric <long double> { enum { value = true }; };
 
        template <bool, class T = void>
        struct enable_if_c {
          typedef T type;
        };
 
        template <class T>
        struct enable_if_c<false, T> {};
 
        template <class Cond, class T = void>
        struct enable_if : public enable_if_c<Cond::value, T> {};
 
        template <bool, class T = void>
        struct disable_if_c {
          typedef T type;
        };
 
        template <class T>
        struct disable_if_c<true, T> {};
 
        template <class Cond, class T = void>
        struct disable_if : public disable_if_c<Cond::value, T> {};
}
 
#endif // TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66_PM