std::ratio_less
From cppreference.com
| Defined in header <ratio>
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| template< class R1, class R2 > struct ratio_less : std::integral_constant; |
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If the ratio R1 is less than 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_v = ratio_less<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
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bool
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type
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std::integral_constant<bool, value> |
Example
Run this code
#include <iostream> #include <ratio> int main() { if (std::ratio_less<std::ratio<23,37>, std::ratio<57,90>>::value) { std::cout << "23/37 < 57/90\n"; } }
Output:
23/37 < 57/90