Nmap Development mailing list archives
Re: Rounding of OS match percentages differs between architectures
From: "DePriest, Jason R." <jrdepriest () gmail com>
Date: Wed, 19 Nov 2008 20:31:18 -0600
On Wed, Nov 19, 2008 at 7:26 PM, David Fifield <david () bamsoftware com> wrote:
Hey, thanks, that works! I guess I assumed that ((int) d) and floor(d) would have the same result when d is positive. Apparently floor has extra logic to know when its argument is less than but very close to an integer. (To see what I mean by "very close to," run python and type in "0.98". I see "0.97999999999999998" as output.) I wonder if this is really caused by the C library? Can anyone else reproduce the "97% 98%" output from the test program I posted? David Fifield
32-bit Windows compiled with cygwin's gcc 3.4.4 $ ./test 97% 98% 32-bit Debian Linux with Debian's gcc 4.3.2 package $ ./test 97% 98% I have a 64-bit processor but I am running 32-bit OSes. -Jason _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://SecLists.Org
Current thread:
- Rounding of OS match percentages differs between architectures David Fifield (Nov 19)
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- Re: Rounding of OS match percentages differs between architectures David Fifield (Nov 19)
- Re: Rounding of OS match percentages differs between architectures jah (Nov 19)
- Re: Rounding of OS match percentages differs between architectures Brandon Enright (Nov 19)
- Re: Rounding of OS match percentages differs between architectures Brandon Enright (Nov 19)
- Re: Rounding of OS match percentages differs between architectures sara fink (Nov 23)
- Re: Rounding of OS match percentages differs between architectures Toni Ruottu (Nov 24)
- Re: Rounding of OS match percentages differs between architectures David Fifield (Nov 19)
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- Re: Rounding of OS match percentages differs between architectures DePriest, Jason R. (Nov 19)
- Re: Rounding of OS match percentages differs between architectures Michael Pattrick (Nov 19)
- Re: Rounding of OS match percentages differs between architectures David Fifield (Nov 20)