traits.h 1.64 KB
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#pragma once

#ifndef TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#define TRAITS_H_62B23520_7C8E_11DE_8A39_0800200C9A66


namespace YAML
{
	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 }; };
	template <> struct is_numeric <long long> { enum { value = true }; };
	template <> struct is_numeric <unsigned long long> { enum { value = true }; };
	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