Question

How to swap two variables using multiple template parameters in C++

Answer 1

#include <iostream>

template<class T, class U>
void swap(T &a, U &b) {
    T temp = a;
    a = b;
    b = temp;
}

int main() {
    int x = 10;
    long y = 25;
    
    swap(x, y); // swap<int, long>(x, y);

    std::cout << x << " " << y;
}




/*
run:

25 10

*/

 

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