Macro KFR_META_FN¶

KFR_META_FN(fn)                                                                                      \
    struct fn_##fn                                                                                           \
    {                                                                                                        \
template <typename... Args>                                                                          \
KFR_INLINE_MEMBER constexpr decltype(fn(std::declval<Args>()...)) operator()(                        \
    Args&&... args) const noexcept                                                                   \
{                                                                                                    \
    return fn(std::forward<Args>(args)...);                                                          \
}                                                                                                    \
    };