ttktraits.h File Reference

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Macros
#define	TTK_DECLARE_HAS_MEMBER(__trait_name__)
#define	TTK_DECLARE_GLOBAL_SIGNATURE(__trait_name__, __func_name__)
#define	TTK_DECLARE_CLASS_SIGNATURE(__trait_name__, __func_name__)

Macro Definition Documentation

#define TTK_DECLARE_CLASS_SIGNATURE	(		__trait_name__,
			__func_name__
	)

Value:

template <typename Void, typename Obj, typename Func> \
    struct __trait_name__ : std::false_type {}; \
    template <typename Obj, typename Func> \
    struct __trait_name__<std::void_t<decltype(static_cast<Func Obj::*>(&Obj::__func_name__))>, Obj, Func> : std::true_type {}; \
    template <typename Obj, typename Func> \
    using __trait_name__##Check = __trait_name__<void, Obj, Func>;

Definition at line 61 of file ttktraits.h.

#define TTK_DECLARE_GLOBAL_SIGNATURE	(		__trait_name__,
			__func_name__
	)

Value:

std::nullptr_t __func_name__(...); \
    template <typename T> \
    struct __trait_name__ \
    { \
        template <typename U, U> struct helper; \
        template <typename U> static std::uint8_t test(helper<U*, &__func_name__>*); \
        template <typename U> static std::uint16_t test(...); \
        static constexpr bool value = sizeof(test<T>(0)) == sizeof(std::uint8_t); \
    }

Definition at line 50 of file ttktraits.h.

#define TTK_DECLARE_HAS_MEMBER

(

__trait_name__

)

Value:

template <typename T, typename... Args> \
    struct has_member_##__trait_name__ \
    { \
    private: \
        template <typename U> \
        static auto test(int)->decltype(std::declval<U>().__trait_name__(std::declval<Args>() ...), std::true_type()); \
        template <typename U> \
        static std::false_type test(...); \
    public: \
        static constexpr bool value = std::is_same<decltype(test<T>(0)), std::true_type>::value; \
    }

Definition at line 23 of file ttktraits.h.