[Bug fortran/19310] New: unnecessary error for overflowing results

Thomas dot Koenig at online dot de gcc-bugzilla@gcc.gnu.org
Fri Jan 7 10:48:00 GMT 2005


The following compile-time error is uneecessary:

$ cat overflow.f90
program main
  real :: a
  a = exp(1000.)
  print *,a
end program main
$ gfortran overflow.f90
 In file overflow.f90:3

  a = exp(1000.)
         1
Error: Result of EXP overflows its kind at (1)

Assigning infinity would work just fine:

$ cat overflow2.f90
program main
  real :: a
  a = 1000.
  a = exp(a)
  print *,a
end program main
$ gfortran overflow2.f90
$ ./a.out
      +Infinity
$ gfortran -v
Using built-in specs.
Configured with: ../gcc-4.0-20050102/configure --prefix=/home/zfkts
--enable-languages=c,c++,f95
Thread model: posix
gcc version 4.0.0 20050102 (experimental)
$ gfortran -dumpmachine
ia64-unknown-linux-gnu

-- 
           Summary: unnecessary error for overflowing results
           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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19310



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