tree.c (cp_tree_equal): Handle pointers to member functions.

1998-05-24  Mark Mitchell  <mark@markmitchell.com>
	* tree.c (cp_tree_equal): Handle pointers to member functions.

From-SVN: r20038

gcc/cp/ChangeLog

 1998-05-24  Mark Mitchell  <mark@markmitchell.com>
 
+	* tree.c (cp_tree_equal): Handle pointers to member functions.
+
 	* call.c (maybe_handle_implicit_object): Handle QUAL_CONVs.  Make
 	sure the type of the REF_BIND is a reference type.
 	(maybe_handle_ref_bind, compare_ics): Rename reference_type to

gcc/cp/tree.c

@@ -2134,7 +2134,23 @@ cp_tree_equal (t1, t2)
 		  TREE_STRING_LENGTH (t1));
 
     case CONSTRUCTOR:
-      abort ();
+      /* We need to do this when determining whether or not two
+	 non-type pointer to member function template arguments
+	 are the same.  */
+      if (!(comptypes (TREE_TYPE (t1), TREE_TYPE (t2), 1)
+	    /* The first operand is RTL.  */
+	    && TREE_OPERAND (t1, 0) == TREE_OPERAND (t2, 0)))
+	return 0;
+      return cp_tree_equal (TREE_OPERAND (t1, 1), TREE_OPERAND (t2, 1));
+
+    case TREE_LIST:
+      cmp = cp_tree_equal (TREE_PURPOSE (t1), TREE_PURPOSE (t2));
+      if (cmp <= 0)
+	return cmp;
+      cmp = cp_tree_equal (TREE_VALUE (t1), TREE_VALUE (t2));
+      if (cmp <= 0)
+	return cmp;
+      return cp_tree_equal (TREE_CHAIN (t1), TREE_CHAIN (t2));
 
     case SAVE_EXPR:
       return cp_tree_equal (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0));

gcc/testsuite/g++.old-deja/g++.pt/nontype4.C

+// Build don't link:
+
+template <class R, void (R::* A) (void)>
+class s
+{
+public:
+  s (R &r) : _r (r) {}
+
+  void e (void) { (_r.*A) (); }
+
+private:
+  R &_r;
+};
+
+class x
+{
+public:
+  void test1 (void) { int j = 0; }
+  void test2 (void) { int j = 1; }
+};
+
+int
+main (void)
+{
+  x r;
+
+  s<x, &x::test1> c4 (r);
+  s<x, &x::test2> c5 (r);
+
+  return 0;
+}