FreeBSD Manual Pages
std::ratio_less_equal(3) C++ Standard Libary std::ratio_less_equal(3) NAME std::ratio_less_equal - std::ratio_less_equal Synopsis Defined in header <ratio> template< class R1, class R2 > struct ratio_less_equal : std::integral_constant<bool, /* see below (since C++11) */> { }; If the ratio R1 is less than or equal to the ratio R2, provides the member constant value equal true. Otherwise, value is false. Helper variable template template< class R1, class R2 > inline constexpr bool ratio_less_equal_v = ratio_less_equal<R1, (since C++17) 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_less_equal<std::ratio<1, 2>, std::ra- tio<3, 4>>::value, "1/2 <= 3/4"); if (std::ratio_less_equal<std::ratio<10,11>, std::ra- tio<11,12>>::value) { std::cout << "10/11 <= 11/12" "\n"; } // Since C++17 static_assert(std::ratio_less_equal_v<std::ratio<10, 11>, std::ra- tio<11, 12>> ); if constexpr (std::ratio_less_equal_v<std::ratio<10, 11>, std::ra- tio<11, 12>>) { std::cout << "11/12 <= 12/13" "\n"; } } Output: 10/11 <= 11/12 11/12 <= 12/13 See also http://cppreference.com 2022.07.31 std::ratio_less_equal(3)
NAME | Synopsis | Member constants | Member functions | Member types | Example | Output: | See also
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=std::ratio_less_equal&sektion=3&manpath=FreeBSD+Ports+15.0>