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// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: Operator x - y produces the same result as x + (-y)
description: >
Using the rule of sum of two zeroes and the fact that a - b = a +
(-b)
---*/
//CHECK#1
if (-0 - -0 !== 0 ) {
$ERROR('#1.1: -0 - -0 === 0. Actual: ' + (-0 - -0));
} else {
if (1 / (-0 - -0) !== Number.POSITIVE_INFINITY) {
$ERROR('#1.2: -0 - -0 === + 0. Actual: -0');
}
}
//CHECK#2
if (0 - -0 !== 0 ) {
$ERROR('#2.1: 0 - -0 === 0. Actual: ' + (0 - -0));
} else {
if (1 / (0 - -0) !== Number.POSITIVE_INFINITY) {
$ERROR('#2.2: 0 - -0 === + 0. Actual: -0');
}
}
//CHECK#3
if (-0 - 0 !== -0 ) {
$ERROR('#3.1: -0 - 0 === 0. Actual: ' + (-0 - 0));
} else {
if (1 / (-0 - 0) !== Number.NEGATIVE_INFINITY) {
$ERROR('#3.2: -0 - 0 === - 0. Actual: +0');
}
}
//CHECK#4
if (0 - 0 !== 0 ) {
$ERROR('#4.1: 0 - 0 === 0. Actual: ' + (0 - 0));
} else {
if (1 / (0 - 0) !== Number.POSITIVE_INFINITY) {
$ERROR('#4.2: 0 - 0 === + 0. Actual: -0');
}
}
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