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std::minus(3) C++ Standard Libary std::minus(3) NAME std::minus - std::minus Synopsis Defined in header <functional> template<> (since C++14) class minus<void>; std::minus<void> is a specialization of std::minus with parameter and return type deduced. Member functions operator() returns the difference of two arguments (public member function) std::minus<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 difference of lhs and rhs. Parameters lhs, rhs - values to subtract Return value std::forward<T>(lhs) - std::forward<U>(rhs). Example // Run this code #include <complex> #include <functional> #include <iostream> int main() { auto complex_minus = std::minus<void>{}; // void can be omitted constexpr std::complex<int> z(4, 2); std::cout << complex_minus(z, 1) << '\n'; std::cout << (z - 1) << '\n'; } Output: (3,2) (3,2) http://cppreference.com 2024.06.10 std::minus(3)
NAME | Synopsis | Member functions | Parameters | Return value | Example | Output:
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