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std::ratio_greater(3) C++ Standard Libary std::ratio_greater(3) NAME std::ratio_greater - std::ratio_greater Synopsis Defined in header <ratio> template< class R1, class R2 > struct ratio_greater : std::integral_constant<bool, /* see below */> (since C++11) { }; If the ratio R1 is greater than the ratio R2, provides the member constant value equal true. Otherwise, value is false. Helper variable template template< class R1, class R2 > (since C++17) inline constexpr bool ratio_greater_v = ratio_greater<R1, R2>::value; Inherited from std::integral_constant Member constants value true if R1::num * R2::den > R2::num * R1::den, or equiva- lent expression [static] that avoids overflow , false otherwise (public static member constant) Member functions operator bool converts the object to bool, returns value (public member function) operator() returns value (C++14) (public member function) Member types Type Definition value_type bool type std::integral_constant<bool, value> Example // Run this code #include <ratio> #include <iostream> auto main() -> int { static_assert(std::ratio_greater<std::ratio<3, 4>, std::ratio<1, 2>>::value, "3/4 > 1/2"); if (std::ratio_greater<std::ratio<11, 12>, std::ratio<10, 11>>::value) { std::cout << "11/12 > 10/11" "\n"; } // Since C++17 static_assert(std::ratio_greater_v<std::ratio<12, 13>, std::ra- tio<11, 12>> ); if constexpr (std::ratio_greater_v<std::ratio<12, 13>, std::ra- tio<11, 12>>) { std::cout << "12/13 > 11/12" "\n"; } } Output: 11/12 > 10/11 12/13 > 11/12 See also http://cppreference.com 2022.07.31 std::ratio_greater(3)
NAME | Synopsis | Member constants | Member functions | Member types | Example | Output: | See also
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