[Bug fortran/30660] [4.2 and 4.1 only] Allocatable components of a derived type "require" the SAVE attribute.

["pault at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #8 from pault at gcc dot gnu dot org  2007-02-17 22:42 -------
This works and regtests OK:

Index: gcc/fortran/resolve.c
===================================================================
*** gcc/fortran/resolve.c       (revision 121864)
--- gcc/fortran/resolve.c       (working copy)
*************** resolve_fl_var_and_proc (gfc_symbol *sym
*** 5529,5534 ****
--- 5529,5549 ----
  }


+ static gfc_component *
+ has_default_initializer (gfc_symbol *der)
+ {
+   gfc_component *c;
+   for (c = der->components; c; c = c->next)
+     if ((c->ts.type != BT_DERIVED && c->initializer)
+         || (c->ts.type == BT_DERIVED
+               && !c->pointer
+               && has_default_initializer (c->ts.derived)))
+       break;
+ 
+   return c;
+ }
+ 
+ 
  /* Resolve symbols with flavor variable.  */

  static try
*************** resolve_fl_variable (gfc_symbol *sym, in
*** 5676,5684 ****
       components.  */
    c = NULL;
    if (sym->ts.type == BT_DERIVED && !(sym->value || flag))
!     for (c = sym->ts.derived->components; c; c = c->next)
!       if (c->initializer)
!       break;

    /* 4th constraint in section 11.3:  "If an object of a type for which
       component-initialization is specified (R429) appears in the
--- 5691,5697 ----
       components.  */
    c = NULL;
    if (sym->ts.type == BT_DERIVED && !(sym->value || flag))
!     c = has_default_initializer (sym->ts.derived);

    /* 4th constraint in section 11.3:  "If an object of a type for which
       component-initialization is specified (R429) appears in the


I need to think about it - it looks a bit clumsy to me and I need also to think
through compliance with the standard.

Paul


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30660