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From: hot@integow.uucp (Roland van Hout)
Newsgroups: comp.unix.sysv386,comp.unix.xenix.sco
Subject: Xenix 2.3.3 386 floating point problem
Keywords: Xenix floating point
Message-ID: <1191@integow.uucp>
Date: 2 Oct 90 15:16:32 GMT
Followup-To: comp.unix.sysv386
Organization: Integrity BV, Woerden, the Netherlands
Lines: 27

We are using an 25 Mhz Compaq 300 Mb no FPU 8 Mb ram,
and Xenix V.2.3.3.
I'm expiriencing troubles with the calculation of floats:
I have a float which contains :90099090001018.000000
I want add this 11.11 which is a char string, so this thru
atof gives 11.110000 according to xenix this results in:
90099090001029.109000
So now we add 0.11   atoffed --> 0.110000
and we get 90099090001029.218000
then we add 1.11 atoffed --> 1.110000
according to xenix this is 90099090001030.328000, finally xenix got
one right!!!!!!!!
So now we add 1.11 atoffed --> 1.110000
this is 90099090001031.437000 and last but not least we add
1.10 atoffed --> 1.100000 and the result is 90099090001032.531000

I linked with -lm , so what am I doing wrong?????????




-- 
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Roland van Hout, Sr. software engineer, Integrity software consultants, 
         Pelmolenlaan 16, 3447 GW Woerden, Netherlands,
            tel +31 3480-30131, fax +31 3480-30182
     Sex is not the answer, sex is the question. The answer is YES!