| // Copyright (C) 2016 The V8 Project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| es6id: 20.2.2.17 |
| esid: sec-math.fround |
| description: > |
| Convert to binary32 format and than to binary64 format |
| info: | |
| Math.fround ( x ) |
| |
| [...] |
| 3. Let x32 be the result of converting x to a value in IEEE 754-2008 binary32 |
| format using roundTiesToEven. |
| 4. Let x64 be the result of converting x32 to a value in IEEE 754-2008 |
| binary64 format. |
| 5. Return the ECMAScript Number value corresponding to x64. |
| ---*/ |
| |
| assert.sameValue(Math.fround(4294967295), 4294967296, "2**32-1"); |
| assert.sameValue(Math.fround(4294967296), 4294967296, "2**32"); |
| assert.sameValue(Math.fround(4294967297), 4294967296, "2**32+1"); |
| |
| assert.sameValue(Math.fround(0.1), 0.10000000149011612, "0.1"); |
| assert.sameValue(Math.fround(0.2), 0.20000000298023224, "0.2"); |
| assert.sameValue(Math.fround(0.5), 0.5, "0.5"); |
