mirror of https://github.com/tc39/test262.git
49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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info: |
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The result of an addition is determined using the rules of IEEE 754
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double-precision arithmetics
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es5id: 11.6.1_A4_T5
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description: >
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The sum of two negative zeros is -0. The sum of two positive
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zeros, or of two zeros of opposite sign is +0
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---*/
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//CHECK#1
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if (-0 + -0 !== -0 ) {
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throw new Test262Error('#1.1: -0 + -0 === 0. Actual: ' + (-0 + -0));
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} else {
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if (1 / (-0 + -0) !== Number.NEGATIVE_INFINITY) {
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throw new Test262Error('#1.1: -0 + -0 === - 0. Actual: +0');
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}
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}
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//CHECK#2
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if (0 + -0 !== 0 ) {
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throw new Test262Error('#2.1: 0 + -0 === 0. Actual: ' + (0 + -0));
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} else {
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if (1 / (0 + -0) !== Number.POSITIVE_INFINITY) {
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throw new Test262Error('#2.2: 0 + -0 === + 0. Actual: -0');
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}
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}
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//CHECK#3
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if (-0 + 0 !== 0 ) {
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throw new Test262Error('#3.1: -0 + 0 === 0. Actual: ' + (-0 + 0));
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} else {
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if (1 / (-0 + 0) !== Number.POSITIVE_INFINITY) {
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throw new Test262Error('#3.2: -0 + 0 === + 0. Actual: -0');
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}
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}
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//CHECK#4
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if (0 + 0 !== 0 ) {
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throw new Test262Error('#4.1: 0 + 0 === 0. Actual: ' + (0 + 0));
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} else {
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if (1 / (0 + 0) !== Number.POSITIVE_INFINITY) {
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throw new Test262Error('#4.2: 0 + 0 === + 0. Actual: -0');
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}
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}
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