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type_traits.h
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type_traits.h
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#pragma once
#ifndef _TYPE_TRAITS_H
#define _TYPE_TRAITS_H
namespace ministl
{
struct _true_type {};
struct _false_type {};
template<typename T, typename U>
struct is_same
{
typedef _false_type value;
};
template<typename T>
struct is_same<T, T>
{
typedef _true_type value;
};
template<class T>
struct _type_traits {
typedef _false_type has_trivial_constructor;
typedef _false_type has_trivial_copy_constructor;
typedef _false_type has_trivial_assignment_operator;
typedef _false_type has_trivial_destructor;
typedef _false_type is_POD_type;
};
template<class T>
struct _type_traits<T *> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<class T>
struct _type_traits<const T *> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<bool> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<char> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<unsigned char> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<signed char> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<wchar_t> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<short> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<unsigned short> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<int> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<unsigned int> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<long> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<unsigned long> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<long long> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<unsigned long long> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<float> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<double> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<long double> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<char*> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<unsigned char*> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<signed char*> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<const char*> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<const unsigned char*> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
template<>
struct _type_traits<const signed char*> {
typedef _true_type has_trivial_constructor;
typedef _true_type has_trivial_copy_constructor;
typedef _true_type has_trivial_assignment_operator;
typedef _true_type has_trivial_destructor;
typedef _true_type is_POD_type;
};
}
#endif