Follow an Explicit Template Type

1#include <iostream>
2 
3template <typename T>
4T add(T first, T second) {
5    std::cout << "adding " << first << " and " << second << "\n";
6    return first + second;
7}
8 
9int main() {
10    std::cout << add<int>(2.8, 3.9) << "\n";
11    std::cout << add<double>(2, 3) << "\n";
12    std::cout << add<double>(1.5, 2) << "\n";
13    std::cout << add<int>(7, 2.5) << "\n";
14    return 0;
15}