From: "0/0" Newsgroups: comp.os.msdos.djgpp Subject: Floating point..... I think.... Date: 14 Jun 1999 08:28:18 GMT Organization: Value Net Internetwork Services Inc. Lines: 13 Message-ID: <01beb63f$a8e494a0$fc4484ce@sub> NNTP-Posting-Host: fgna-252.value.net X-Newsreader: Microsoft Internet News 4.70.1162 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?