friend.c (is_friend): Be lenient with member functions to deal with nested friends.

	* friend.c (is_friend): Be lenient with member functions to deal
	with nested friends.

From-SVN: r21444

gcc/cp/ChangeLog

+1998-07-28  Mark Mitchell  <mark@markmitchell.com>
+
+	* friend.c (is_friend): Be lenient with member functions to deal
+	with nested friends.
+
 1998-07-28  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* class.c (finish_struct_1): Convert integer_zero_node to

gcc/cp/friend.c

@@ -77,8 +77,15 @@ is_friend (type, supplicant)
 		     friendship.  This is bogus in general since two
 		     specializations of a template with non-type
 		     template parameters may have the same type, but
-		     be different.  */
-		  if (flag_guiding_decls 
+		     be different.  
+
+		     Temporarily, we are also more lenient to deal
+		     with nested friend functions, for which there can
+		     be more than one FUNCTION_DECL, despite being the
+		     same function.  When that's fixed, the
+		     FUNCTION_MEMBER_P bit can go.  */
+		  if ((flag_guiding_decls 
+		       || DECL_FUNCTION_MEMBER_P (supplicant))
 		      && comptypes (TREE_TYPE (supplicant),
 				    TREE_TYPE (TREE_VALUE (friends)), 1))
 		    return 1;

gcc/testsuite/g++.old-deja/g++.other/friend3.C

+// Build don't link:
+
+class foo {
+public:
+    class bar;
+    void func(bar *);
+    class bar {
+      int st;
+      friend void foo::func(bar *);
+    };
+};
+
+
+void foo::func(bar *obj) {
+  obj->st++;
+}
+
+void test02() {
+  foo obj_f;
+  foo::bar obj_b;
+  
+  obj_f.func( &obj_b);
+}