mirror of https://github.com/tc39/test262.git
49 lines
1.4 KiB
JavaScript
49 lines
1.4 KiB
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
info: |
|
|
The result of division is determined by the specification of IEEE 754
|
|
arithmetics
|
|
es5id: 11.5.2_A4_T6
|
|
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');
|
|
}
|
|
}
|