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* [Bug fortran/37504] New: Wrongly rejects: unprotected_pointer => protected_pointer
@ 2008-09-12 21:11 burnus at gcc dot gnu dot org
2008-09-13 14:50 ` [Bug fortran/37504] " burnus at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: burnus at gcc dot gnu dot org @ 2008-09-12 21:11 UTC (permalink / raw)
To: gcc-bugs
Found at:
http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/73c7b88ffbe8e1d5
The following (see URL above) is valid but gfortran rejects it with:
Error: Pointer assignment target has PROTECTED attribute at (1)
> C538:
>
> "A pointer object that has the PROTECTED attribute and is accessed by
> use association shall not appear as (1) A pointer-object in a pointer-
> assignment-stmt..."
>
> C538 doesn't forbid using a protected pointer as the target of a
> pointer-assignment-stmt.
module m
implicit none
integer, pointer, protected :: protected_pointer
end module m
program p
use m
implicit none
integer, pointer :: unprotected_pointer
unprotected_pointer => protected_pointer
end program p
--
Summary: Wrongly rejects: unprotected_pointer =>
protected_pointer
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: burnus at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37504
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/37504] Wrongly rejects: unprotected_pointer => protected_pointer
2008-09-12 21:11 [Bug fortran/37504] New: Wrongly rejects: unprotected_pointer => protected_pointer burnus at gcc dot gnu dot org
@ 2008-09-13 14:50 ` burnus at gcc dot gnu dot org
2008-09-25 15:04 ` burnus at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu dot org @ 2008-09-13 14:50 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from burnus at gcc dot gnu dot org 2008-09-13 14:48 -------
First patch - completely untested/uncompiled:
Index: expr.c
===================================================================
--- expr.c (Revision 140340)
+++ expr.c
@@ -3053 +3053,2 @@ gfc_check_pointer_assign (gfc_expr *lval
- if (attr.is_protected && attr.use_assoc)
+ if (attr.is_protected && attr.use_assoc
+ && !(attr.pointer || attr.proc_pointer))
I don't quite understand why one gets "Error: PROTECTED at (1) only allowed in
specification part of a module" for the following example.
module m
implicit none
integer, pointer, protected :: protected_pointer
integer, target, protected :: protected_target
end module m
program p
use m
implicit none
integer, pointer :: unprotected_pointer
unprotected_pointer => protected_target ! OK, is rejected
unprotected_pointer => protected_pointer ! WRONG, is wrongly REJECTED
protected_pointer => unprotected_pointer ! OK, is rejected, BUT MATCH ERROR
end program p
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37504
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/37504] Wrongly rejects: unprotected_pointer => protected_pointer
2008-09-12 21:11 [Bug fortran/37504] New: Wrongly rejects: unprotected_pointer => protected_pointer burnus at gcc dot gnu dot org
2008-09-13 14:50 ` [Bug fortran/37504] " burnus at gcc dot gnu dot org
@ 2008-09-25 15:04 ` burnus at gcc dot gnu dot org
2008-09-26 15:20 ` burnus at gcc dot gnu dot org
2008-09-26 15:22 ` burnus at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu dot org @ 2008-09-25 15:04 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from burnus at gcc dot gnu dot org 2008-09-25 15:02 -------
Subject: Bug 37504
Author: burnus
Date: Thu Sep 25 15:01:16 2008
New Revision: 140663
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140663
Log:
2008-09-25 Tobias Burnus <burnus@net-b.de>
PR fortran/37504
* expr.c (gfc_check_pointer_assign): Allow assignment of
protected pointers.
* match.c (gfc_match_assignment,gfc_match_pointer_assignment):
Remove unreachable code.
2008-09-25 Tobias Burnus <burnus@net-b.de>
PR fortran/37504
* gfortran.dg/protected_7.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/protected_7.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/expr.c
trunk/gcc/fortran/match.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37504
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/37504] Wrongly rejects: unprotected_pointer => protected_pointer
2008-09-12 21:11 [Bug fortran/37504] New: Wrongly rejects: unprotected_pointer => protected_pointer burnus at gcc dot gnu dot org
2008-09-13 14:50 ` [Bug fortran/37504] " burnus at gcc dot gnu dot org
2008-09-25 15:04 ` burnus at gcc dot gnu dot org
@ 2008-09-26 15:20 ` burnus at gcc dot gnu dot org
2008-09-26 15:22 ` burnus at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu dot org @ 2008-09-26 15:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from burnus at gcc dot gnu dot org 2008-09-26 15:19 -------
Subject: Bug 37504
Author: burnus
Date: Fri Sep 26 15:17:25 2008
New Revision: 140695
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140695
Log:
2008-09-26 Tobias Burnus <burnus@net-b.de>
PR fortran/37504
* expr.c (gfc_check_pointer_assign): Allow assignment of
protected pointers.
2008-09-26 Tobias Burnus <burnus@net-b.de>
PR fortran/37504
* gfortran.dg/protected_7.f90: New test.
Added:
branches/gcc-4_3-branch/gcc/testsuite/gfortran.dg/protected_7.f90
Modified:
branches/gcc-4_3-branch/gcc/fortran/ChangeLog
branches/gcc-4_3-branch/gcc/fortran/expr.c
branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37504
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/37504] Wrongly rejects: unprotected_pointer => protected_pointer
2008-09-12 21:11 [Bug fortran/37504] New: Wrongly rejects: unprotected_pointer => protected_pointer burnus at gcc dot gnu dot org
` (2 preceding siblings ...)
2008-09-26 15:20 ` burnus at gcc dot gnu dot org
@ 2008-09-26 15:22 ` burnus at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: burnus at gcc dot gnu dot org @ 2008-09-26 15:22 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from burnus at gcc dot gnu dot org 2008-09-26 15:21 -------
FIXED on the trunk (4.4) and on the 4.3 branch.
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37504
^ permalink raw reply [flat|nested] 5+ messages in thread
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2008-09-12 21:11 [Bug fortran/37504] New: Wrongly rejects: unprotected_pointer => protected_pointer burnus at gcc dot gnu dot org
2008-09-13 14:50 ` [Bug fortran/37504] " burnus at gcc dot gnu dot org
2008-09-25 15:04 ` burnus at gcc dot gnu dot org
2008-09-26 15:20 ` burnus at gcc dot gnu dot org
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