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Re: [Patch, fortran] PR25289 Cannot handle record numbers large than huge(0_4)
- From: Jerry DeLisle <jvdelisle at verizon dot net>
- To: Steve Kargl <sgk at troutmask dot apl dot washington dot edu>
- Cc: FX Coudert <fxcoudert at gmail dot com>, gcc-patches <gcc-patches at gcc dot gnu dot org>, fortran at gcc dot gnu dot org
- Date: Wed, 28 Jun 2006 22:09:10 -0700
- Subject: Re: [Patch, fortran] PR25289 Cannot handle record numbers large than huge(0_4)
- References: <A7E4CB800B73A2409E113012513E03944CDFA8@EX1V.rl.gov> <44A20047.1010202@verizon.net> <44A21FD8.4090706@gmail.com> <20060628203602.GA30013@troutmask.apl.washington.edu>
Steve Kargl wrote:
On Wed, Jun 28, 2006 at 08:21:12AM +0200, FX Coudert wrote:
I don't have time right now to review that patch. Here are my comments:
Jerry, I'm in the same boat with fx, but I should be able
to read through the code Saturday. Perhaps, we can get
in touch on IRC in the afternoon.
This patch
borrows code from trans-types.c to determine whether or not a target
supports integer 8 or not. A new function is added to make this
determination.
I think we should use a constant to store that integer kind defined as
"8 if integer(8) exists and 4 otherwise", to avoid calling a function
each time we need it. We already have a constant gfc_max_integer_kind in
place, we could either
- use that gfc_max_integer_kind, because it is also known from the
library, as GFC_INTEGER_LARGEST
- use similar code than the one defining gfc_max_integer_kind to
define gfc_large_integer_kind as "8 if possible, 4 otherwise"
You definitely don't want to use gfc_max_integer_kind. This
is integer*16 on most (if not all) 64 bit architectures. I
think we should go with the second option, but with a more
descriptive name, perhaps, gfc_record_integer_kind.
Yes, I agree we should not use gfc_max_integer_kind. I have the second option
working with gfc_record_int_kind.
I will do some more testing here. (I found the extern declarations in
gfortran.h, doh!)
Steve, I will look for you on IRC if I can Saturday.
Jerry