std::ratio_not_equal
From cppreference.com
| Defined in header <ratio>
|
||
template< class R1, class R2 >
struct ratio_not_equal : std::integral_constant<bool, /* see below */> { };
|
(since C++11) | |
If the ratios R1 and R2 are not equal, provides the member constant value equal true. Otherwise, value is false.
Helper variable template
template< class R1, class R2 >
constexpr bool ratio_not_equal_v = ratio_not_equal<R1, R2>::value;
|
(since C++17) | |
Inherited from std::integral_constant
Member constants
value [static] |
true if R1::num != R2::num || R1::den != R2::den, 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>
|
Possible implementation
template< class R1, class R2 >
struct ratio_not_equal : std::integral_constant <
bool,
!std::ratio_equal<R1, R2>
> {};
|
Example
Run this code
#include <ratio>
static_assert(std::ratio_not_equal_v<std::ratio<6, 9>, std::ratio<9, 6>>, "6/9 != 9/6");
int main() {}
See also
(C++11) |
compares two ratio objects for equality at compile-time (class template) |
