ok, just to let you all know, this is basically my first complete program, so if what i'm asking is just plain stupid, don't yell.
the program is designed to make a backup of a text file every two hours until manually terminated. the problem i have is that i don't know a good way to make a timer to do that. i tried one way, and yes it runs fine, but it ended up taking about 70% of my cpu resources to run a 90-line program. so obviously that's no good. here's the way i tried to make the timer.
if anybody knows a good way to do this(and i'm sure everybody but me does), please let me know. any help is greatly appreciated.
long start=0, current=0;
Review your compilers documentation to find a sleep() or delay() type function. These local implementations won't hog the CPU like your version.
ahhh, thanks much. just what i was looking for.