Language/Expressions/Unary_Expressions/variable_negative_t02.dart

// 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 The expression !e is equivalent to the expression
/// e ? false : true.
/// @description Checks that expression !!e is equivalent to the expression e
/// when e is a boolean.
/// @author hlodvig

import '../../../Utils/expect.dart';

main() {
  bool v = true;
  Expect.equals(v, !!v);
  v = false;
  Expect.equals(v, !!v);
}