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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 import 'package:expect/expect.dart'; | |
6 | |
7 main() { | |
8 // The following numbers are on the border of 52 bits. | |
9 // For example: 4503599627370499 + 0.5 => 4503599627370500. | |
10 Expect.equals(4503599627370496, 4503599627370496.0.round()); | |
11 Expect.equals(4503599627370497, 4503599627370497.0.round()); | |
12 Expect.equals(4503599627370498, 4503599627370498.0.round()); | |
13 Expect.equals(4503599627370499, 4503599627370499.0.round()); | |
14 | |
15 Expect.equals(9007199254740991, 9007199254740991.0.round()); | |
16 Expect.equals(9007199254740992, 9007199254740992.0.round()); | |
17 | |
18 Expect.equals(-4503599627370496, (-4503599627370496.0).round()); | |
19 Expect.equals(-4503599627370497, (-4503599627370497.0).round()); | |
20 Expect.equals(-4503599627370498, (-4503599627370498.0).round()); | |
21 Expect.equals(-4503599627370499, (-4503599627370499.0).round()); | |
22 | |
23 Expect.equals(-9007199254740991, (-9007199254740991.0).round()); | |
24 Expect.equals(-9007199254740992, (-9007199254740992.0).round()); | |
25 | |
26 Expect.isTrue(4503599627370496.0.round() is int); | |
27 Expect.isTrue(4503599627370497.0.round() is int); | |
28 Expect.isTrue(4503599627370498.0.round() is int); | |
29 Expect.isTrue(4503599627370499.0.round() is int); | |
30 Expect.isTrue(9007199254740991.0.round() is int); | |
31 Expect.isTrue(9007199254740992.0.round() is int); | |
32 Expect.isTrue((-4503599627370496.0).round() is int); | |
33 Expect.isTrue((-4503599627370497.0).round() is int); | |
34 Expect.isTrue((-4503599627370498.0).round() is int); | |
35 Expect.isTrue((-4503599627370499.0).round() is int); | |
36 Expect.isTrue((-9007199254740991.0).round() is int); | |
37 Expect.isTrue((-9007199254740992.0).round() is int); | |
38 } | |
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