09-29-2010
As I just said, the "usage" code looks nearly correct (maybe replace != with -ne), but shouldn't be in a function at all. Functions don't call themselves, and the comparisons don't check what you think they do when in a function either.
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LEARN ABOUT CENTOS
allegro_exit
allegro_exit(3alleg4) Allegro manual allegro_exit(3alleg4)
NAME
allegro_exit - Closes down the Allegro system.
SYNOPSIS
#include <allegro.h>
void allegro_exit();
DESCRIPTION
Closes down the Allegro system. This includes returning the system to text mode and removing whatever mouse, keyboard, and timer routines
have been installed. You don't normally need to bother making an explicit call to this function, because allegro_init() installs it as an
atexit() routine so it will be called automatically when your program exits.
Note that after you call this function, other functions like destroy_bitmap() will most likely crash. This is a problem for C++ global
destructors, which usually get called after atexit(), so don't put Allegro calls in them. You can write the destructor code in another
method which you can manually call before your program exits, avoiding this problem.
SEE ALSO
install_allegro(3alleg4), allegro_init(3alleg4), destroy_bitmap(3alleg4), ex3d(3alleg4), exscn3d(3alleg4), exswitch(3alleg4),
exxfade(3alleg4), exzbuf(3alleg4)
Allegro version 4.4.2 allegro_exit(3alleg4)