What is the purpose of & before a function declaration here?
#include <simplecpp> int &f(int &x, int &y) { if (x > y) return x; else return y; } main_program{ int p=5, q=4; f(p,q) = 2; cout << p << ‘ ‘ << q << endl; cout << f(p, q) << endl; } (It’s a little simple version of C++ used to teach students). What I […]
Is it possible to initialize a struct reference with an array?
Is it possible to do something like this?:
Why this constant struct can be modified in this way?
Recently I encounter the following code, it is an excerpt from tutorial of open-source package AMReX text