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ALLEGRO_USECS_TO_SECS(3alleg5) ALLEGRO_USECS_TO_SECS(3alleg5)

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