Mail Archives: djgpp/1999/07/10/16:21:55
From: | "Christopher Nelson" <paradox AT gye DOT satnet DOT net>
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To: | <djgpp AT delorie DOT com>
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Subject: | Re: it's amazing (at least for me)
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Date: | Sat, 10 Jul 1999 13:13:44 -0600
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Message-ID: | <01becb08$546da000$LocalHost@thendren>
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Reply-To: | djgpp AT delorie DOT com
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-----Original Message-----
From: aperes <ajps AT mail DOT telepac DOT pt>
Newsgroups: comp.os.msdos.djgpp
To: djgpp AT delorie DOT com <djgpp AT delorie DOT com>
Date: Saturday, July 10, 1999 2:55 AM
Subject: it's amazing (at least for me)
>In this little C program if i change the type of variable k (in setup
>function) to byte the program don't work. Can anyone explain me why?
because a byte is 8 bits.
128 64 32 16 8 4 2 1
add them all up and you get 255. therefore, your loop in setup will never,
ever be false: any value in a byte is ALWAYS <256. the value wraps around
at 255 and becomes 1 again. therefore, you get an infinite loop.
-={C}=-
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