Hello,
here is a fix for PR57033.
The problem was gfc_convert_to_structure_constructor calling itself
recursively and changing `actual' behind its back without going through
the loop condition.
The fix is pretty obvious; I thought there was something missing (see
the PR) but on second thought, it seems to be correct.
regression tested on x86_64-unknown-linux-gnu; OK for trunk and then
4.8/4.7?
Mikael
2014-01-26 Mikael Morin <mik...@gcc.gnu.org>
PR fortran/57033
* primary.c (gfc_convert_to_structure_constructor): Avoid null pointer
dereference.
2014-01-26 Mikael Morin <mik...@gcc.gnu.org>
PR fortran/57033
* gfortran.dg/default_initialization_7.f90: New test.
diff --git a/gcc/fortran/primary.c b/gcc/fortran/primary.c
index c77b4ec..7d7fbad 100644
--- a/gcc/fortran/primary.c
+++ b/gcc/fortran/primary.c
@@ -2544,7 +2544,8 @@ gfc_convert_to_structure_constructor (gfc_expr *e, gfc_symbol *sym, gfc_expr **c
if (parent && !comp)
break;
- actual = actual->next;
+ if (actual)
+ actual = actual->next;
}
if (!build_actual_constructor (&comp_head, &ctor_head, sym))
! { dg-do compile }
!
! PR fortran/57033
! ICE on a structure constructor of an extended derived type whose parent
! type last component has a default initializer
!
! Contributed by Tilo Schwarz <t...@tilo-schwarz.de>
program ice
type m
integer i
logical :: f = .false.
end type m
type, extends(m) :: me
end type me
type(me) meo
meo = me(1) ! ICE
end program ice
