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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 * The result of an addition is determined using the rules of IEEE 754 double-precision arithmetics |
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6 * |
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7 * @path ch11/11.6/11.6.1/S11.6.1_A4_T9.js |
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8 * @description The addition operator is not always associative ( x + y + z is the same (x + y) + z, not x + (y + z)) |
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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.MAX_VALUE !== (-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE) { |
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13 $ERROR('#1: -Number.MAX_VALUE + Number.MAX_VALUE + Number.MAX_VALUE === (-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE. Actual: ' + (-Number.MAX_VALUE + 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.MAX_VALUE === -Number.MAX_VALUE + (Number.MAX_VALUE + Number.MAX_VALUE)) { |
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18 $ERROR('#2: (-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE === -Number.MAX_VALUE + (Number.MAX_VALUE + Number.MAX_VALUE). Actual: ' + ((-Number.MAX_VALUE + Number.MAX_VALUE) + Number.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 ("1" + 1 + 1 !== ("1" + 1) + 1) { |
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23 $ERROR('#3: "1" + 1 + 1 === ("1" + 1) + 1. Actual: ' + ("1" + 1 + 1)); |
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24 } |
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25 |
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26 //CHECK#4 |
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27 if (("1" + 1) + 1 === "1" + (1 + 1)) { |
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28 $ERROR('#4: ("1" + 1) + 1 !== "1" + (1 + 1)'); |
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29 } |
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30 |