no. of header files in c++ code example
Example 1: what is a header in c++
// my_class.h
#ifndef MY_CLASS_H // include guard
#define MY_CLASS_H
namespace N
{
class my_class
{
public:
void do_something();
};
}
#endif /* MY_CLASS_H */
Example 2: what is a header in c++
int x; // declaration
x = 42; // use x