What does int & mean

Question

A C++ question,

I know

int* foo(void)

foo will return a pointer to int type

how about

int &foo(void)
         


        

Answer 1

This question isn't C/C++ at all, as C does not have references, only pointers. An int& is a reference to an int. Also, you don't need void, it can just be int& foo();