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Change-Id: Iad2963c7f9c184b089dc6d15aa4442f58d194bc2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151983 Reviewed-by: Nicholas Shahan <nshahan@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
23 lines
694 B
Dart
23 lines
694 B
Dart
// Copyright (c) 2012, 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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import "package:expect/expect.dart";
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int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
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foo() {
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int x = 0;
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if (inscrutable(0) == 0) x = -2; // x is now in range [-2 .. 0].
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int y = 2;
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if (inscrutable(0) == 0) y = 4; // y is now in range [2 .. 4].
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int i = y - x; // i should be in range [2 .. 6].
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i -= 4; // i should be in range [-2 .. 2]. Actual value: 2.
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var a = const [1];
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return a[i];
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}
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main() {
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Expect.throwsRangeError(() => foo());
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}
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