Multiple Definition (LNK2005) errors

Question

I recently tried to create a global header file which would have all definitions of error codes (i.e. NO_ERROR, SDL_SCREEN_FLIP_ERROR, etc.) these would just be integers whi

Answer 1

You could simply use an enum:

globals.h:

enum
{
    SCREEN_LOAD_ERROR = 1,
    NO_ERROR = 0,
    // ...
}