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std::divides<void>

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< cpp‎ | utility‎ | functional
 
 
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divides<>
(C++14)
(C++14)
(C++14)
(C++14)
(C++14)
(C++14)
(C++14)
(C++14)
(C++14)

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(until C++17*)(until C++17*)

(until C++17*)
(until C++17*)(until C++17*)(until C++17*)(until C++17*)
(until C++20*)
(until C++20*)
 
Defined in header <functional>
template<>
class divides<void>;
(since C++14)

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

Contents

[edit] Member types

Type Definition
is_transparent unspecified

[edit] Member functions

operator()
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).

[edit] 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)