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re PR fortran/31199 (write with "t1" + nonadvancing transfer format gives wrong output)

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2007-03-25  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/31199
	*io/io.h: Add saved_pos to gfc_unit structure.
	*io/open.c (new_unit): Initialize saved_pos.
	*io/transfer.c (data_transfer_init): Set max_pos to value in saved_pos.
	(next_record_w): Fix whitespace.
	(finalze_transfer): Calculate max_pos for ADVANCE="no" and save it for
	later use.  If not ADVANCE="no" set saved_pos to zero.

From-SVN: r123205
This commit is contained in:
Jerry DeLisle 2007-03-26 03:23:15 +00:00
parent 75b63e8b5b
commit beb6a65e75
4 changed files with 27 additions and 2 deletions
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13
libgfortran/ChangeLog
View File

@ -1,9 +1,22 @@
<<<<<<< .mine
2007-03-23 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/31199
*io/io.h: Add saved_pos to gfc_unit structure.
*io/open.c (new_unit): Initialize saved_pos.
*io/transfer.c (data_transfer_init): Set max_pos to value in saved_pos.
(next_record_w): Fix whitespace.
(finalze_transfer): Calculate max_pos for ADVANCE="no" and save it for
later use. If not ADVANCE="no" set saved_pos to zero.
=======
2007-03-25 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/31196
* intrinsics/reshape_generic.c (reshape_internal): Increment
correct variable.
>>>>>>> .r123204
2007-03-22 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/31052

2
libgfortran/io/io.h
View File

@ -443,7 +443,7 @@ typedef struct gfc_unit
struct gfc_unit *left, *right;
int priority;
int read_bad, current_record;
int read_bad, current_record, saved_pos;
enum
{ NO_ENDFILE, AT_ENDFILE, AFTER_ENDFILE }
endfile;

1
libgfortran/io/open.c
View File

@ -423,6 +423,7 @@ new_unit (st_parameter_open *opp, gfc_unit *u, unit_flags * flags)
u->mode = READING;
u->maxrec = 0;
u->bytes_left = 0;
u->saved_pos = 0;
if (flags->position == POSITION_APPEND)
{

13
libgfortran/io/transfer.c
View File

@ -1951,6 +1951,10 @@ data_transfer_init (st_parameter_dt *dtp, int read_flag)
dtp->u.p.blank_status = dtp->u.p.current_unit->flags.blank;
dtp->u.p.sign_status = SIGN_S;
/* Set the maximum position reached from the previous I/O operation. This
could be greater than zero from a previous non-advancing write. */
dtp->u.p.max_pos = dtp->u.p.current_unit->saved_pos;
pre_position (dtp);
@ -2461,7 +2465,6 @@ next_record_w (st_parameter_dt *dtp, int done)
}
else
{
/* If this is the last call to next_record move to the farthest
position reached in preparation for completing the record.
(for file unit) */
@ -2603,12 +2606,20 @@ finalize_transfer (st_parameter_dt *dtp)
return;
}
/* For non-advancing I/O, save the current maximum position for use in the
next I/O operation if needed. */
if (dtp->u.p.advance_status == ADVANCE_NO)
{
int bytes_written = (int) (dtp->u.p.current_unit->recl
- dtp->u.p.current_unit->bytes_left);
dtp->u.p.current_unit->saved_pos =
dtp->u.p.max_pos > 0 ? dtp->u.p.max_pos - bytes_written : 0;
flush (dtp->u.p.current_unit->s);
return;
}
dtp->u.p.current_unit->saved_pos = 0;
next_record (dtp, 1);
sfree (dtp->u.p.current_unit->s);
}