* [patch, libgfortran] PR77707 formatted direct access: nextrec off by one
@ 2016-09-28 6:30 Jerry DeLisle
2016-09-28 18:43 ` Steve Kargl
0 siblings, 1 reply; 2+ messages in thread
From: Jerry DeLisle @ 2016-09-28 6:30 UTC (permalink / raw)
To: fortran; +Cc: GCC Patches
[-- Attachment #1: Type: text/plain, Size: 285 bytes --]
I plan to commit the attached patch in the next few days. Fairly simple.
Regression tested on x86-64.
Regards,
Jerry
2016-09-27 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/77707
io/transfer.c (next_record): Flush before calculating next_record.
Correctly calculate.
[-- Attachment #2: pr77707.diff --]
[-- Type: text/x-patch, Size: 1079 bytes --]
diff --git a/libgfortran/io/transfer.c b/libgfortran/io/transfer.c
index 6009c123..902c0201 100644
--- a/libgfortran/io/transfer.c
+++ b/libgfortran/io/transfer.c
@@ -3720,6 +3720,8 @@ next_record (st_parameter_dt *dtp, int done)
else
next_record_w (dtp, done);
+ fbuf_flush (dtp->u.p.current_unit, dtp->u.p.mode);
+
if (!is_stream_io (dtp))
{
/* Since we have changed the position, set it to unspecified so
@@ -3733,8 +3735,8 @@ next_record (st_parameter_dt *dtp, int done)
fp = stell (dtp->u.p.current_unit->s);
/* Calculate next record, rounding up partial records. */
dtp->u.p.current_unit->last_record =
- (fp + dtp->u.p.current_unit->recl - 1) /
- dtp->u.p.current_unit->recl;
+ (fp + dtp->u.p.current_unit->recl) /
+ dtp->u.p.current_unit->recl - 1;
}
else
dtp->u.p.current_unit->last_record++;
@@ -3743,7 +3745,6 @@ next_record (st_parameter_dt *dtp, int done)
if (!done)
pre_position (dtp);
- fbuf_flush (dtp->u.p.current_unit, dtp->u.p.mode);
smarkeor (dtp->u.p.current_unit->s);
}
[-- Attachment #3: pr77707.f90 --]
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! { dg-do run }
! PR77707 formatted direct access: nextrec off by one
program directaccess_formatted
integer nextrec
open(10, status='scratch', form='formatted', access='direct', recl=10*4)
write(10,'(10i4)',rec=9) 1,2,3,4,5,6,7,8,9,10
inquire(unit=10,nextrec=nextrec)
if (nextrec.ne.10) call abort
close(10)
end
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [patch, libgfortran] PR77707 formatted direct access: nextrec off by one
2016-09-28 6:30 [patch, libgfortran] PR77707 formatted direct access: nextrec off by one Jerry DeLisle
@ 2016-09-28 18:43 ` Steve Kargl
0 siblings, 0 replies; 2+ messages in thread
From: Steve Kargl @ 2016-09-28 18:43 UTC (permalink / raw)
To: Jerry DeLisle; +Cc: fortran, GCC Patches
On Tue, Sep 27, 2016 at 10:15:40PM -0700, Jerry DeLisle wrote:
> I plan to commit the attached patch in the next few days. Fairly simple.
>
> Regression tested on x86-64.
>
Looks ok to me.
--
Steve
^ permalink raw reply [flat|nested] 2+ messages in thread
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