metafunc utility

metafunc.hpp

template<template<typename> typename F>
struct bool_metafunc
{
	template<typename T>
	struct negate
	{
		static constexpr bool value = !(F<T>::value);
	};

	template<template<typename> typename Other>
	struct binary_op
	{
		template<typename T>
		struct logic_or
		{
			static constexpr bool value = F<T>::value || Other<T>::value;
		};

		template<typename T>
		struct logic_and
		{
			static constexpr bool value = F<T>::value && Other<T>::value;
		};
	};
};

template<typename T>
using integr_or_float = typename mvg::bool_metafunc<std::is_integral>::binary_op<std::is_floating_point>::logic_or<T>;