std:: ratio_greater_equal

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ratio_greater_equal
(C++11)
Defined in header <ratio>
template < class R1, class R2 >
struct ratio_greater_equal : std:: integral_constant < bool , /* see below */ > { } ;
(since C++11)

If the ratio R1 is greater 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 >
constexpr bool ratio_greater_equal_v = ratio_greater_equal < R1, R2 > :: value ;
(since C++17)

Inherited from std:: integral_constant

Member constants

value
[static]
true if R1 :: num * R2 :: den >= R2 :: num * R1 :: den , or equivalent expression that avoids overflow, false otherwise
(public static member constant)

Member functions

operator bool
converts the object to bool , returns value
(public member function)
operator()
(C++14)
returns value
(public member function)

Member types

Type Definition
value_type bool
type std:: integral_constant < bool , value >

Example

Run this code 
#include <ratio>
 
int main()
{
    static_assert(std::ratio_greater_equal<
        std::ratio<2, 3>,
        std::ratio<2, 3>>::value, "2/3 >= 2/3");
 
    // since C++17
    static_assert(std::ratio_greater_equal_v<
        std::ratio<999'998, 999'999>,
        std::ratio<999'997, 999'998>>);
}

See also

(C++11)
compares two ratio objects for equality at compile-time
(class template)
(C++11)
compares two ratio objects for less than at compile-time
(class template)
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