Allegro 5 api
#include <allegro5/allegro.h> size_t al_fwrite32le(ALLEGRO_FILE *f, int32_t l)
Writes a 32-bit word in little-endian format (LSB first).
Returns the number of bytes written: 4 on success, less than 4 on an error.
al_fwrite32be(3alleg5)