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From: "jvdelisle at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/92639] Error: Integer too big for its kind at (1)
Date: Wed, 01 Mar 2023 18:29:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D92639

Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jvdelisle at gcc dot gnu.o=
rg

--- Comment #3 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Please observe:

program demonstrate
  integer :: i
  i =3D huge(i)
  print *, i

  i=3D -huge(i)
  print *, i
end program

$ gfc demonstrate.f90=20
$ ./a.out=20
  2147483647
 -2147483647

This is by the fortran standard definition for a 32 bit integer.  You cannot
represent 2147483648 in 32 bits because you need bit 32 to represent the si=
gn
of the value. How other compilers are storing the sign I can not speak to.=