http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47189
janus at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2011.01.06 13:28:51 AssignedTo|unassigned at gcc dot |janus at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 --- Comment #1 from janus at gcc dot gnu.org 2011-01-06 13:28:51 UTC --- Patch: Index: gcc/fortran/class.c =================================================================== --- gcc/fortran/class.c (revision 168525) +++ gcc/fortran/class.c (working copy) @@ -83,7 +83,8 @@ gfc_add_component_ref (gfc_expr *e, const char *na /* Build a NULL initializer for CLASS pointers, - initializing the _data and _vptr components to zero. */ + initializing the _data component to NULL and + the _vptr component to the declared type. */ gfc_expr * gfc_class_null_initializer (gfc_typespec *ts) @@ -98,9 +99,10 @@ gfc_class_null_initializer (gfc_typespec *ts) for (comp = ts->u.derived->components; comp; comp = comp->next) { gfc_constructor *ctor = gfc_constructor_get(); - ctor->expr = gfc_get_expr (); - ctor->expr->expr_type = EXPR_NULL; - ctor->expr->ts = comp->ts; + if (strcmp (comp->name, "_vptr") == 0) + ctor->expr = gfc_lval_expr_from_sym (gfc_find_derived_vtab (ts->u.derived)); + else + ctor->expr = gfc_get_null_expr (NULL); gfc_constructor_append (&init->value.constructor, ctor); }