#ifndef SPROUT_FUNCTIONAL_LOGICAL_NOT_HPP #define SPROUT_FUNCTIONAL_LOGICAL_NOT_HPP #include namespace sprout { // 20.8.6 logical operations template struct logical_not { public: typedef T argument_type; typedef bool result_type; public: SPROUT_CONSTEXPR bool operator()(T const& x) const { return !x; } }; } // namespace sprout #endif // #ifndef SPROUT_FUNCTIONAL_LOGICAL_NOT_HPP