/*
 * 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 An expression of one of the forms !e, e1 && e2 or e1 || e2, where e, e1 and
 * e2 are constant expressions that evaluate to a boolean value is a constant expression.
 * @description Checks that an expression of the form !e cannot be used to initialize
 * a constant variable if e does not evaluate to a boolean value.
 * @author iefremov
 * @compile-error
 * @reviewer rodionov
 */

const m = !1;

main() {
  try {
    print(m);
  } catch(x) {}
}