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1 // Copyright 2009 the Sputnik authors. All rights reserved. |
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2 // This code is governed by the BSD license found in the LICENSE file. |
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3 |
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4 /** |
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5 * Operator x - y produces the same result as x + (-y) |
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6 * |
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7 * @path ch11/11.6/11.6.2/S11.6.2_A4_T8.js |
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8 * @description If the magnitude is too large to represent, the operation overflows and the result is then an infinity of appropriate sign |
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9 */ |
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10 |
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11 //CHECK#1 |
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12 if (Number.MAX_VALUE - -Number.MAX_VALUE !== Number.POSITIVE_INFINITY) { |
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13 $ERROR('#1: Number.MAX_VALUE - -Number.MAX_VALUE === Number.POSITIVE_INFINITY. Actual: ' + (Number.MAX_VALUE - -Number.MAX_VALUE)); |
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14 } |
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15 |
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16 //CHECK#2 |
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17 if (-Number.MAX_VALUE - Number.MAX_VALUE !== Number.NEGATIVE_INFINITY) { |
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18 $ERROR('#2: -Number.MAX_VALUE - umber.MAX_VALUE === Number.NEGATIVE_INFINITY. Actual: ' + (-Number.MAX_VALUE - umber.MAX_VALUE)); |
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19 } |
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20 |
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21 //CHECK#3 |
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22 if (1e+308 - -1e+308 !== Number.POSITIVE_INFINITY) { |
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23 $ERROR('#3: 1e+308 - -1e+308 === Number.POSITIVE_INFINITY. Actual: ' + (1e+308 - -1e+308)); |
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24 } |
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25 |
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26 //CHECK#4 |
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27 if (-8.99e+307 - 8.99e+307 !== Number.NEGATIVE_INFINITY) { |
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28 $ERROR('#4: -8.99e+307 - 8.99e+307 === Number.NEGATIVE_INFINITY. Actual: ' + (-8.99e+307 - 8.99e+307)); |
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29 } |
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30 |