std::divides<void> - cppreference.com

From cppreference.com


`template<> class divides<void>;`		(since C++14)

std::divides<void> is a specialization of std::divides with parameter and return type deduced.

Member types

Member functions

returns the quotient of two arguments
(public member function)

std::divides<void>::operator()

`template< class T, class U > constexpr auto operator()( T&& lhs, U&& rhs ) const -> decltype(std::forward<T>(lhs) / std::forward<U>(rhs));`

Returns the quotient of lhs and rhs.

Parameters

lhs, rhs

values to divide

Return value

std::forward<T>(lhs) / std::forward<U>(rhs).

Example

#include <complex>
#include <functional>
#include <iostream>

int main()
{
    auto complex_divides = std::divides<void>{}; // “void” can be omitted
    constexpr std::complex z1{8.0, 4.0}, z2{1.0, 2.0};
    
    std::cout << std::showpos
              << complex_divides(z1, z2) << ' ' << z1 / z2 << '\n'
              << complex_divides(z1, 5.) << ' ' << z1 / 5. << '\n'
              << complex_divides(6., z2) << ' ' << 6. / z2 << '\n';
}

Output:

(+3.2,-2.4) (+3.2,-2.4)
(+1.6,+0.8) (+1.6,+0.8)
(+1.2,-2.4) (+1.2,-2.4)