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Mail Archives: djgpp/1999/04/14/13:56:52

From: "Marp" <Marp AT 0 DOT 0 DOT 0 DOT 0>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: float is not working
Date: Wed, 14 Apr 1999 13:30:40 -0400
Organization: Netcom
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References: <3714C932 DOT 1E5E452B AT spektracom DOT de>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Andrej Aderhold <dra AT spektracom DOT de> wrote in message
news:3714C932 DOT 1E5E452B AT spektracom DOT de...
> why is this not working ??
>
> float m = 1 / 2;
>
> (m will be 0)
>
> thanks.
> Andrej
>

C uses the smallest datatype to acurately hold data. The numbers 1 and 2 are
integers and so C will do integer division on 1/2 which is less than 1 so m
will hold 0. To get it to hold 0.5 you need to say float m = 1.0 / 2.0, or
typecast it like this: float m = (float)1 / (float)2 Hope this helps you
understand better.


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