[Bug fortran/31129] No warning on unused parameters

[dfranke at gcc dot gnu dot org]

------- Comment #1 from dfranke at gcc dot gnu dot org  2007-07-09 10:18 -------
Emit a warning if an unused parameter is found (-Wunused/-Wall), currently
regtesting:

Index: trans-decl.c
===================================================================
--- trans-decl.c        (revision 126478)
+++ trans-decl.c        (working copy)
@@ -3035,6 +3035,12 @@
       if (sym->attr.dummy && sym->backend_decl != NULL_TREE)
          TREE_NO_WARNING(sym->backend_decl) = 1;
     }
+  else if (sym->attr.flavor == FL_PARAMETER)
+    {
+      if (warn_unused_variable && !sym->attr.referenced)
+       gfc_warning ("unused parameter '%s' declared at %L", sym->name,
+                    &sym->declared_at);
+    }

   if (sym->attr.dummy == 1)
     {


-- 

dfranke at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dfranke at gcc dot gnu dot
                   |                            |org
         AssignedTo|unassigned at gcc dot gnu   |dfranke at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2007-03-17 11:40:46         |2007-07-09 10:18:26
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31129