Converts four 8 bit values to a packed 32 bit integer id. allegro game programming library.
#include <allegro.h>
Macro AL_ID(a,b,c,d)
This macro can be used to create a packed 32 bit integer from 8 bit characters, on both 32 and 64 bit machines. These can be used for various things, like custom datafile objects or system IDs. Example:
#define OSTYPE_LINUX AL_ID('T','U','X',' ')
DAT_ID(3alleg4)