/*
 * Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion It is a compile-time error if the arity of a user-declared 
 * operator with one of the names:
 * <, >, <=, >=, ==, -, +,  ̃/, /, *, %, |, ˆ, &, <<, >>, >>>, [] is not 1.
 * @description Checks that a compile-time error is produced if a user-defined 
 * operator < specifies two parameters.
 * @compile-error
 * @author vasya
 */

class C {
  operator <(var val, var val2) {}
}

main() {
  new C() < new C();
}