Files
sdk/tests/language/ackermann_test.dart
T
Bob Nystrom 14011f47e3 Resurrect deleted language tests.
They're back from the grave, and ready to party!

Change-Id: I088134a9be7ecabf1fbf751c015a656a15cabff9
Reviewed-on: https://dart-review.googlesource.com/12821
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: William Hesse <whesse@google.com>
2017-10-11 17:47:11 +00:00

23 lines
564 B
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 version of two-argument Ackermann-Peter function.
import "package:expect/expect.dart";
class AckermannTest {
static ack(m, n) {
return m == 0
? n + 1
: ((n == 0) ? ack(m - 1, 1) : ack(m - 1, ack(m, n - 1)));
}
static testMain() {
Expect.equals(253, ack(3, 5));
}
}
main() {
AckermannTest.testMain();
}