Provided by: allegro5-doc_5.0.10-2_all 
NAME
al_rest - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro.h>
void al_rest(double seconds)
DESCRIPTION
Waits for the specified number seconds. This tells the system to pause the current thread for the given
amount of time. With some operating systems, the accuracy can be in the order of 10ms. That is, even
al_rest(0.000001)
might pause for something like 10ms. Also see the section on easier ways to time your program without
using up all CPU.