blob: e8ca1940a7295c8c0ca60c09251d9c5b7c996ef4 [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 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)); }