blob: d885e1da960d42c659d0dd8837f09acfdd3d7115 [file] [log] [blame]
/*
* 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 pow(x, exponent)
* For doubles, pow(x, y) handles edge cases as follows:
* ...
* - if x is -Infinity or -0.0 and y is not an odd integer, then the result
* is the same as pow(-x , y).
* @description Checks the result when [x] is -Infinity or -0.0 and [y] is
* not an odd integer.
* @author msyabro
* @reviewer pagolubev
*/
import "dart:math" as Math;
import "../../Utils/expect.dart";
main() {
Expect.equals(double.infinity, Math.pow(double.negativeInfinity, 2));
Expect.equals(double.infinity, Math.pow(double.negativeInfinity, 2.0));
Expect.equals(double.infinity, Math.pow(double.negativeInfinity, 22));
Expect.equals(double.infinity, Math.pow(double.negativeInfinity, 22.0));
Expect.equals(double.infinity, Math.pow(double.negativeInfinity, 0.2));
Expect.equals(
double.infinity, Math.pow(double.negativeInfinity, double.infinity));
Expect.equals(.0, Math.pow(double.negativeInfinity, -2));
Expect.isFalse(Math.pow(double.negativeInfinity, -2).isNegative);
Expect.equals(.0, Math.pow(double.negativeInfinity, -2.0));
Expect.isFalse(Math.pow(double.negativeInfinity, -2.0).isNegative);
Expect.equals(.0, Math.pow(double.negativeInfinity, -22));
Expect.isFalse(Math.pow(double.negativeInfinity, -22).isNegative);
Expect.equals(.0, Math.pow(double.negativeInfinity, -22.0));
Expect.isFalse(Math.pow(double.negativeInfinity, -22.0).isNegative);
Expect.equals(.0, Math.pow(double.negativeInfinity, -0.2));
Expect.isFalse(Math.pow(double.negativeInfinity, -0.2).isNegative);
Expect.equals(
.0, Math.pow(double.negativeInfinity, double.negativeInfinity));
Expect.isFalse(
Math.pow(double.negativeInfinity, double.negativeInfinity).isNegative);
Expect.equals(.0, Math.pow(-.0, 2));
Expect.isFalse(Math.pow(-.0, 2).isNegative);
Expect.equals(.0, Math.pow(-.0, 2.0));
Expect.isFalse(Math.pow(-.0, 2.0).isNegative);
Expect.equals(.0, Math.pow(-.0, 22));
Expect.isFalse(Math.pow(-.0, 22).isNegative);
Expect.equals(.0, Math.pow(-.0, 22.0));
Expect.isFalse(Math.pow(-.0, 22.0).isNegative);
Expect.equals(.0, Math.pow(-.0, 0.2));
Expect.isFalse(Math.pow(-.0, 0.2).isNegative);
Expect.equals(.0, Math.pow(-.0, double.infinity));
Expect.isFalse(Math.pow(-.0, double.infinity).isNegative);
Expect.equals(double.infinity, Math.pow(-.0, -2));
Expect.equals(double.infinity, Math.pow(-.0, -2.0));
Expect.equals(double.infinity, Math.pow(-.0, -22));
Expect.equals(double.infinity, Math.pow(-.0, -22.0));
Expect.equals(double.infinity, Math.pow(-.0, -0.2));
Expect.equals(double.infinity, Math.pow(-.0, double.negativeInfinity));
}