Language/Expressions/Unary_Expressions/variable_decrement_t01.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.

// @dart = 2.9

/// @assertion Evaluation of an expression of the form --e is equivalent to
/// e -= 1.
/// @description Checks that evaluation of an expression of the form --e is
/// equivalent to e -= 1.
/// @author msyabro
/// @reviewer kaigorodov

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

main() {
  var v1 = 1;
  var v2 = 1;
  var r1 = --v1;
  var r2 = (v2 -= 1);
  Expect.equals(v1, v2);
  Expect.equals(r1, r2);
}