https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30802
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gcc dot gnu.org
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=97039
--- Comment #9 from anlauf at gcc dot gnu.org ---
(In reply to markeggleston from comment #8)
> Changing to allocated arrays and bounds checking does not work at compile
> time but does at runtime:
>
> program test
> real, allocatable :: x(:)
> allocate(x(10))
> x = 0.0
> print *, x(0)
> deallocate(x)
> end program test
>
> $ gfortran -fbounds-check pr30802.f90
> $ ./a.out
>
> At line 5 of file pr30802.f90
> Fortran runtime error: Index '0' of dimension 1 of array 'x' below lower
> bound of 1
>
> Error termination. Backtrace:
> #0 0x400ea1 in ???
> #1 0x400f6d in ???
> #2 0x4380b2 in ???
> #3 0x438471 in ???
> #4 0x400c69 in ???
I think the point is that bounds-checking does not work for sections of rank-2
arrays. See also PR97039.
This is not I/O specific, but what Thomas said in comment#3.
