type_traits.h

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#ifndef TYPE_TRAITS_H
#define TYPE_TRAITS_H
 
#include "Platform.h"
 
namespace dyno
{
    
    template <typename T> struct remove_reference { typedef T type; };
 
    template <typename T> struct remove_reference<T&> { typedef T type; };
 
    template <typename T> struct remove_reference<T&&> { typedef T type; };
 
 
    template <typename T>
    DYN_FUNC constexpr T&& forward(typename dyno::remove_reference<T>::type& x) noexcept
    {
        return static_cast<T&&>(x);
    }
 
 
    template <typename T>
    DYN_FUNC constexpr T&& forward(typename dyno::remove_reference<T>::type&& x) noexcept
    {
        // should promise T isn't lvalue reference 
        return static_cast<T&&>(x);
    }
 
    template <typename T>
    struct iterator_traits {};
 
    typedef long long ptrDiff_t;
 
    template <typename T>
    struct iterator_traits<T*>
    {
        typedef T                                   value_type;
        typedef ptrDiff_t                           difference_type;
        typedef T*                                 pointer;
        typedef T&                                 reference;
    };
 
    template <typename T>
    struct iterator_traits<const T*>
    {
        typedef T                                   value_type;
        typedef ptrDiff_t                           difference_type;
        typedef const T*                           pointer;
        typedef const T&                           reference;
    };
}
 
 
#endif // TYPE_TRAITS_H