C++ Fundamentals for Professionals/

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- Solution

- Solution

This lesson explains the solution for the exercise in the previous lesson.

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The solution to the previous exercise can be found below:

C++
#include <iostream>
#include <typeinfo>
template<typename T1, typename T2>
auto add(T1 first, T2 second) -> decltype(first + second){
    return first + second;
}
int main(){
  std::cout << std::endl;
  // -> int
  std::cout << typeid( add(1, false) ).name() << std::endl;
  std::cout << typeid( add('a', 1) ).name() << std::endl;
  std::cout << typeid( add(false, false) ).name() << std::endl;
  // -> double
  std::cout << typeid( add(true, 3.14) ).name() << std::endl;
  std::cout << typeid( add(1, 4.0) ).name() << std::endl;
  std::cout << std::endl;
}

Explanation #

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