| // 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. |
| |
| /// @assertion bool isNegative |
| /// @description Checks [:isNegative:] on double special values. |
| /// @author pagolubev |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| Expect.isFalse(.0.isNegative); |
| Expect.isTrue((-.0).isNegative); |
| |
| double min = 4.9406564584124654e-324; |
| Expect.isFalse(min.isNegative); |
| Expect.isTrue((-min).isNegative); |
| |
| double min_normal = 2.2250738585072014e-308; |
| Expect.isFalse(min_normal.isNegative); |
| Expect.isTrue((-min_normal).isNegative); |
| |
| double max_normal = 1.7976931348623157e308; |
| Expect.isFalse(max_normal.isNegative); |
| Expect.isTrue((-max_normal).isNegative); |
| |
| double inf = 1 / 0; |
| Expect.isFalse(inf.isNegative); |
| Expect.isTrue((-inf).isNegative); |
| |
| double nan = 0 / 0; |
| Expect.isFalse(nan.isNegative); |
| Expect.isFalse((-nan).isNegative); |
| } |