std::make_tuple doesn't make references

Question

I\'ve been experimenting with std::tuple in combination with references:

#include 
#include 

int main() {
  int a,         


        

Answer 1

For the why: make_tuple parameters are passed by const reference (const T&), so if you pass int&, T matches int. If it deduced T to be int&, the parameter would be const T&&, and you'd get a compile error.