From:	"0/0" <nsousbpoanmer AT naooslp DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Floating point..... I think....
Date:	14 Jun 1999 08:28:18 GMT
Organization:	Value Net Internetwork Services Inc.
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Message-ID:	<01beb63f$a8e494a0$fc4484ce@sub>
NNTP-Posting-Host:	fgna-252.value.net
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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

I'm playing around with FFTs, and I notice my DFT and FFT functions become
less acurate when I compile for DJGPP then they do when I compile with
watcom and Visual C++... I like using DJGPP because its more convenient and
projects take up less room, at least for me.... but this is the weirdest
thing I have seen, Anyway the results seem to be less acurate, when I ran
my program compiled from both watcom and vc++ the results were sharp and
looked more accurate, when I compiled for DJGPP the DFT came out blurry,
and the FFT came out even weirder and definetly not accurate...but I am
curious has any one had this trouble before.... I know using double
precision fp is better, but single precision aparently works, and I did a
lot of typecasting just to make sure and its still the same results. Does
any one have any ideas of what to do?

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