* decl.c (check_default_argument): Use LOOKUP_IMPLICIT.

From-SVN: r194816

gcc/cp/ChangeLog

 2013-01-02  Jason Merrill  <jason@redhat.com>
 
+	* decl.c (check_default_argument): Use LOOKUP_IMPLICIT.
+
 	PR c++/55032
 	PR c++/55245
 	* tree.c (build_cplus_array_type): Copy layout information

gcc/cp/decl.c

@@ -10829,7 +10829,7 @@ check_default_argument (tree decl, tree arg)
      parameter type.  */
   ++cp_unevaluated_operand;
   perform_implicit_conversion_flags (decl_type, arg, tf_warning_or_error,
-				     LOOKUP_NORMAL);
+				     LOOKUP_IMPLICIT);
   --cp_unevaluated_operand;
 
   if (warn_zero_as_null_pointer_constant

gcc/testsuite/g++.dg/overload/defarg7.C

+struct A
+{
+  A(const char *);
+  explicit A(const int *);
+};
+
+void f (A a = 0);
+
+int main()
+{
+  f();
+}