[Bug fortran/31563] Arithmetic overflow and BOZ

[kargl at gcc dot gnu dot org]

------- Comment #7 from kargl at gcc dot gnu dot org  2007-04-13 20:44 -------
(In reply to comment #6)
> Sorry, I cannot find another compiler that agrees with gfortran -

Then, I suggest you submit a bug report.  The standard explicitly 
says

     "If a data-stmt-constant is a boz-literal-constant, the corresponding
     variable shall be of type integer.  The boz-literal-constant is treated
     as if it were an int-literal-constant with a kind-param that specifies
     the representation method with the largest decimal exponent range
     supported by the processor."

Either integer(8) or integer(16) is the largest on your platform,
and the BOZ is converted as required by the standard.  If you 
want to compile your code and ignore the integer overflow, then
use -fno-range-check as others have already told you.

laptop:kargl[208] gfc4x -o z -fno-range-check h.f90
laptop:kargl[209] ./z
80000000
FF000000


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31563