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From: Georg Bauhaus <sb463ba@l1-hrz.uni-duisburg.de>
Newsgroups: comp.lang.ada
Subject: Re: Erroneous results with LOG function when using inline option
 (-gnatN)
Date: Tue, 3 Aug 2004 18:40:11 +0000 (UTC)
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Fr?d?ric Ormancey <frederic.ormancey@atosorigin.com> wrote:
 
: correct result is :
: 3.53400000000000E+03
: 8.17018565287964E+00
: 6.93147180559945E-01
: 1.17870863245516E+01
: 11

The above result I get when compiling with GCC 3.4.1 on Debian,
with or without -gnatN.


: When using -gnatN option I got this erroneous result :
: 3.53400000000000E+03
: 0.E+14
: 3.53400000053248E+14
: 5.04315471466814E-4932
: 2147483647

GNAT 3.15p (from NYU) and -gnatN:
 3.53400000000000E+03
3.53400000000001E+14
3.53400000000001E+14
3.53400000000002E+14
 2147483647

adding -gnato gives

 3.53400000000000E+03
3.53400000000001E+14
3.53400000000001E+14
3.53400000000002E+14

raised CONSTRAINT_ERROR : test_numeric.adb:22 overflow check failed


HTH
-- Georg