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05ca544f15
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
39 lines
646 B
Dart
39 lines
646 B
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.7
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import "package:expect/expect.dart";
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void not1() {
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var x = !true;
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Expect.equals(false, x);
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}
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void not2() {
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var x = true;
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var y = !x;
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Expect.equals(false, y);
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}
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void not3() {
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var x = true;
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var y = !x;
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var z = !y;
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Expect.equals(true, z);
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}
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void not4() {
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var x = true;
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if (!x) Expect.fail('unreachable');
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Expect.equals(true, x);
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}
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void main() {
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not1();
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not2();
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not3();
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not4();
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}
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