| // 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 double operator unary-() |
| /// @description Checks [:unary-():] on a bunch of values. |
| /// @author pagolubev |
| |
| import "../../../Utils/expect.dart"; |
| |
| |
| check(double d) { |
| double neg = -d; |
| Expect.isTrue(neg.isNegative); |
| Expect.equals(d, neg.abs()); |
| neg = -neg; |
| Expect.isFalse(neg.isNegative); |
| Expect.equals(d, neg); |
| } |
| |
| main() { |
| Expect.equals(.0, -0); |
| check(.1); |
| check(1.0); |
| check(33.333); |
| check(4.9406564584124654e-324); // min subnormal |
| check(2.2250738585072014e-308); // min normal |
| check(1.7976931348623157e308); // max normal |
| } |