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* [Bug fortran/18518] New: d1mach(4)  (BLAS) broken, g77 regression
@ 2004-11-16 10:35 Thomas dot Koenig at online dot de
  2004-11-16 10:36 ` [Bug fortran/18518] " Thomas dot Koenig at online dot de
                   ` (14 more replies)
  0 siblings, 15 replies; 16+ messages in thread
From: Thomas dot Koenig at online dot de @ 2004-11-16 10:35 UTC (permalink / raw)
  To: gcc-bugs

For source code see attachment. The source came
from http://www.netlib.org/blas/d1mach.f .

For new code, this should not be an ussue, because
these numbers are supplied by the front end.  Old
code from sources like netlib relies on these routines,
and it's a pain to have to change them.

$ gfortran -v
Reading specs from /home/zfkts/lib/gcc/ia64-unknown-linux-gnu/4.0.0/specs
Configured with: ../gcc-4.0-20041107/configure --prefix=/home/zfkts
--enable-languages=c,c++,f95
Thread model: posix
gcc version 4.0.0 20041107 (experimental)
$ gfortran d1mach.f && ./a.out
  2.225073858507201E-308
   0.00000000000000
  3.182993687584259E-313
  2.121995792447469E-314
  0.301029995663981
$ g77 d1mach.f && ./a.out
  2.22507386E-308
  1.79769313E+308
  1.11022302E-16
  2.22044605E-16
  0.301029996
$ ifort d1mach.f && ./a.out
  2.225073858507201E-308
  1.797693134862316E+308
  1.110223024625157E-016
  2.220446049250313E-016
  0.301029995663981

-- 
           Summary: d1mach(4)  (BLAS) broken, g77 regression
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Thomas dot Koenig at online dot de
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: ia64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18518


^ permalink raw reply	[flat|nested] 16+ messages in thread
end of thread, other threads:[~2005-09-29 21:33 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-11-16 10:35 [Bug fortran/18518] New: d1mach(4) (BLAS) broken, g77 regression Thomas dot Koenig at online dot de
2004-11-16 10:36 ` [Bug fortran/18518] " Thomas dot Koenig at online dot de
2004-11-16 13:59 ` pinskia at gcc dot gnu dot org
2004-11-17  8:46 ` c dot lemmen at fz-juelich dot de
2004-11-18  9:02 ` Thomas dot Koenig at online dot de
2004-11-18 18:53 ` [Bug fortran/18518] equivalenced variables are not saved Thomas dot Koenig at online dot de
2004-11-20 12:10 ` toon at moene dot indiv dot nluug dot nl
2004-11-20 13:20 ` Thomas dot Koenig at online dot de
2004-11-22 12:30 ` Thomas dot Koenig at online dot de
2004-11-30 15:18 ` tobi at gcc dot gnu dot org
2005-01-06 14:42 ` tobi at gcc dot gnu dot org
2005-03-01 14:11 ` pinskia at gcc dot gnu dot org
2005-03-10 14:34 ` pinskia at gcc dot gnu dot org
2005-09-27 21:47 ` cvs-commit at gcc dot gnu dot org
2005-09-29 21:30 ` cvs-commit at gcc dot gnu dot org
2005-09-29 21:33 ` pinskia at gcc dot gnu dot org

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