| /* |
| * 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 roundToDouble() |
| * Returns this.toDouble(). |
| * @description Checks that this method same value as this.toDouble(); |
| * @author vasya |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| import "dart:math" as Math; |
| |
| void check(int x) { |
| Expect.equals(x.toDouble(), x.roundToDouble()); |
| } |
| |
| main() { |
| final double MIN_DOUBLE = Math.pow(2.0, -1074); |
| final double NEG_MIN_DOUBLE = -1 * MIN_DOUBLE; |
| final double MAX_DOUBLE = (2 - Math.pow(2.0, -52)) * Math.pow(2.0, 1023); |
| final double NEG_MAX_DOUBLE = -1 * MAX_DOUBLE; |
| |
| check(0); |
| check(2147483647); |
| check(-2147483648); |
| check(4294967295); |
| check(-4294967296); |
| check(9223372036854775807); |
| check(-9223372036854775808); |
| check(-1844674407370955161); |
| check(1 << 1024); |
| check(1 << 1124); |
| check(-(1 << 1024)); |
| check(-(1 << 1124)); |
| } |
| |