| // Copyright 2009 the Sputnik authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /** |
| * The result of division is determined by the specification of IEEE 754 arithmetics |
| * |
| * @path ch11/11.5/11.5.2/S11.5.2_A4_T6.js |
| * @description Division of a finite value by an infinity results in zero of appropriate sign |
| */ |
| |
| //CHECK#1 |
| if (1 / Number.NEGATIVE_INFINITY !== -0) { |
| $ERROR('#1.1: 1 / -Infinity === 0. Actual: ' + (1 / -Infinity)); |
| } else { |
| if (1 / (1 / Number.NEGATIVE_INFINITY) !== Number.NEGATIVE_INFINITY) { |
| $ERROR('#1.2: 1 / -Infinity === - 0. Actual: +0'); |
| } |
| } |
| |
| //CHECK#2 |
| if (-1 / Number.NEGATIVE_INFINITY !== +0) { |
| $ERROR('#2.1: -1 / -Infinity === 0. Actual: ' + (-1 / -Infinity)); |
| } else { |
| if (1 / (-1 / Number.NEGATIVE_INFINITY) !== Number.POSITIVE_INFINITY) { |
| $ERROR('#2.2: -1 / -Infinity === + 0. Actual: -0'); |
| } |
| } |
| |
| //CHECK#3 |
| if (1 / Number.POSITIVE_INFINITY !== +0) { |
| $ERROR('#3.1: 1 / Infinity === 0. Actual: ' + (1 / Infinity)); |
| } else { |
| if (1 / (1 / Number.POSITIVE_INFINITY) !== Number.POSITIVE_INFINITY) { |
| $ERROR('#3.2: 1 / Infinity === + 0. Actual: -0'); |
| } |
| } |
| |
| //CHECK#4 |
| if (-1 / Number.POSITIVE_INFINITY !== -0) { |
| $ERROR('#4.1: -1 / Infinity === 0. Actual: ' + (-1 / Infinity)); |
| } else { |
| if (1 / (-1 / Number.POSITIVE_INFINITY) !== Number.NEGATIVE_INFINITY) { |
| $ERROR('#4.2: -1 / Infinity === - 0. Actual: +0'); |
| } |
| } |
| |