js/src/tests/test262/ch08/8.5/S8.5_A2.2.js@6474c204b198 (annotated)
js/src/tests/test262/ch08/8.5/S8.5_A2.2.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // Copyright 2009 the Sputnik authors. All rights reserved. |
| michael@0 | 2 | // This code is governed by the BSD license found in the LICENSE file. |
| michael@0 | 3 | |
| michael@0 | 4 | /** |
| michael@0 | 5 | * Number type represented as the extended precision 64-bit format IEEE 754 |
| michael@0 | 6 | * |
| michael@0 | 7 | * @path ch08/8.5/S8.5_A2.2.js |
| michael@0 | 8 | * @description Use 2^53 + 2 number and do some operation with it |
| michael@0 | 9 | */ |
| michael@0 | 10 | |
| michael@0 | 11 | var x = 9007199254740994.0; /* 2^53 + 2 */ |
| michael@0 | 12 | var y = 1.0 - 1/65536.0; |
| michael@0 | 13 | var z = x + y; |
| michael@0 | 14 | var d = z - x; |
| michael@0 | 15 | |
| michael@0 | 16 | if (d === 2){ |
| michael@0 | 17 | $ERROR('#1: var x = 9007199254740994.0; var y = 1.0 - 1/65536.0; var z = x + y; var d = z - x; d !== 2'); |
| michael@0 | 18 | } |
| michael@0 | 19 |
