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re PR fortran/47878 (187.facerec miscompares)

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PR fortran/47878
	* io/transfer.c (read_sf): Call fbuf_getptr only at the end,
	and subtract n, dtp->u.p.sf_seen_eor and seen_comma from it.

	* gfortran.dg/pr47878.f90: New test.

From-SVN: r170476
This commit is contained in:
Jakub Jelinek 2011-02-24 21:13:57 +01:00 committed by Jakub Jelinek
parent 01bd5703f5
commit ae01ced508
4 changed files with 28 additions and 6 deletions
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5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2011-02-24 Jakub Jelinek <jakub@redhat.com>
PR fortran/47878
* gfortran.dg/pr47878.f90: New test.
2011-02-24 Richard Guenther <rguenther@suse.de>
PR testsuite/47801

10
gcc/testsuite/gfortran.dg/pr47878.f90 Normal file
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@ -0,0 +1,10 @@
! PR fortran/47878
! { dg-do run }
integer :: a(5)
open (99, recl = 40)
write (99, '(5i3)') 1, 2, 3
rewind (99)
read (99, '(5i3)') a
if (any (a.ne.(/1, 2, 3, 0, 0/))) call abort
close (99, status = 'delete')
end

6
libgfortran/ChangeLog
View File

@ -1,3 +1,9 @@
2011-02-24 Jakub Jelinek <jakub@redhat.com>
PR fortran/47878
* io/transfer.c (read_sf): Call fbuf_getptr only at the end,
and subtract n, dtp->u.p.sf_seen_eor and seen_comma from it.
2011-02-24 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/47802

13
libgfortran/io/transfer.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Andy Vaught
Namelist transfer functions contributed by Paul Thomas
@ -284,7 +284,6 @@ static char *
read_sf (st_parameter_dt *dtp, int * length)
{
static char *empty_string[0];
char *base;
int q, q2;
int n, lorig, seen_comma;
@ -302,9 +301,6 @@ read_sf (st_parameter_dt *dtp, int * length)
/* Read data into format buffer and scan through it. */
lorig = *length;
base = fbuf_getptr (dtp->u.p.current_unit);
if (base == NULL)
return NULL;
while (n < *length)
{
@ -396,7 +392,12 @@ read_sf (st_parameter_dt *dtp, int * length)
if ((dtp->common.flags & IOPARM_DT_HAS_SIZE) != 0)
dtp->u.p.size_used += (GFC_IO_INT) n;
return base;
/* We can't call fbuf_getptr before the loop doing fbuf_getc, because
fbuf_getc might reallocate the buffer. So return current pointer
minus all the advances, which is n plus up to two characters
of newline or comma. */
return fbuf_getptr (dtp->u.p.current_unit)
- n - dtp->u.p.sf_seen_eor - seen_comma;
}