Wed, 31 Dec 2014 13:27:57 +0100
Ignore runtime configuration files generated during quality assurance.
1 // Copyright 2009 the Sputnik authors. All rights reserved.
2 // This code is governed by the BSD license found in the LICENSE file.
4 /**
5 * Operator x - y produces the same result as x + (-y)
6 *
7 * @path ch11/11.6/11.6.2/S11.6.2_A4_T5.js
8 * @description Using the rule of sum of two zeroes and the fact that a - b = a + (-b)
9 */
11 //CHECK#1
12 if (-0 - -0 !== 0 ) {
13 $ERROR('#1.1: -0 - -0 === 0. Actual: ' + (-0 - -0));
14 } else {
15 if (1 / (-0 - -0) !== Number.POSITIVE_INFINITY) {
16 $ERROR('#1.2: -0 - -0 === + 0. Actual: -0');
17 }
18 }
20 //CHECK#2
21 if (0 - -0 !== 0 ) {
22 $ERROR('#2.1: 0 - -0 === 0. Actual: ' + (0 - -0));
23 } else {
24 if (1 / (0 - -0) !== Number.POSITIVE_INFINITY) {
25 $ERROR('#2.2: 0 - -0 === + 0. Actual: -0');
26 }
27 }
29 //CHECK#3
30 if (-0 - 0 !== -0 ) {
31 $ERROR('#3.1: -0 - 0 === 0. Actual: ' + (-0 - 0));
32 } else {
33 if (1 / (-0 - 0) !== Number.NEGATIVE_INFINITY) {
34 $ERROR('#3.2: -0 - 0 === - 0. Actual: +0');
35 }
36 }
38 //CHECK#4
39 if (0 - 0 !== 0 ) {
40 $ERROR('#4.1: 0 - 0 === 0. Actual: ' + (0 - 0));
41 } else {
42 if (1 / (0 - 0) !== Number.POSITIVE_INFINITY) {
43 $ERROR('#4.2: 0 - 0 === + 0. Actual: -0');
44 }
45 }