ALLEGRO_USECS_TO_SECS(3) ALLEGRO_USECS_TO_SECS(3)

ALLEGRO_USECS_TO_SECS - Allegro 5 API

#include <allegro5/allegro.h>
#define ALLEGRO_USECS_TO_SECS(x)      ((x) / 1000000.0)

Convert microseconds to seconds.

Allegro reference manual