std::modulus<void>

 

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Defined in header <functional>
template<> class modulus<void>;		(since C++14)

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

Nested types

Nested type	Definition
is_transparent	unspecified

Member functions

operator()

returns the modulus of two arguments (public member function)

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

template<class T, class U > constexprauto operator()( T&& lhs, U&& rhs )const     -> decltype(std::forward<T>(lhs)%std::forward<U>(rhs));

Returns the remainder of the division of lhs by rhs.

Parameters

lhs, rhs

-

values to divide

Return value

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

Example

Run this code

#include <functional>#include <iostream>   struct M { M(int x){std::cout<<"M("<< x <<");\n";} M(){}};   auto operator%(M, M){std::cout<<"operator%(M, M);\n";return M{};}auto operator%(M, int){std::cout<<"operator%(M, int);\n";return M{};}auto operator%(int, M){std::cout<<"operator%(int, M);\n";return M{};}   int main(){ M m;   // 42 is converted into a temporary object M{42}std::modulus<M>{}(m, 42);// calls operator%(M, M)   // no temporary objectstd::modulus<void>{}(m, 42);// calls operator%(M, int)std::modulus<void>{}(42, m);// calls operator%(int, M)}

Output:

M(42); operator%(M, M); operator%(M, int); operator%(int, M);