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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-dataview.prototype.getfloat64
description: >
Return values from Buffer using a custom offset
info: |
24.2.4.6 DataView.prototype.getFloat64 ( byteOffset [ , littleEndian ] )
1. Let v be the this value.
2. If littleEndian is not present, let littleEndian be false.
3. Return ? GetViewValue(v, byteOffset, littleEndian, "Float64").
24.2.1.1 GetViewValue ( view, requestIndex, isLittleEndian, type )
...
14. Let bufferIndex be getIndex + viewOffset.
15. Return GetValueFromBuffer(buffer, bufferIndex, type, isLittleEndian).
...
24.1.1.5 GetValueFromBuffer ( arrayBuffer, byteIndex, type [ , isLittleEndian
] )
...
8. If isLittleEndian is false, reverse the order of the elements of rawValue.
...
features: [DataView.prototype.setUint8]
---*/
var buffer = new ArrayBuffer(16);
var sample = new DataView(buffer, 0);
sample.setUint8(4, 67);
sample.setUint8(5, 67);
sample.setUint8(6, 68);
sample.setUint8(7, 68);
sample.setUint8(8, 67);
sample.setUint8(9, 67);
sample.setUint8(10, 68);
sample.setUint8(11, 68);
sample.setUint8(12, 67);
sample.setUint8(13, 67);
sample.setUint8(14, 68);
sample.setUint8(15, 68);
sample = new DataView(buffer, 4);
assert.sameValue(sample.getFloat64(0, false), 10846169068898440, "0");
assert.sameValue(sample.getFloat64(1, false), 11409110432516230, "1");
assert.sameValue(sample.getFloat64(2, false), 747563348316297500000, "2");
assert.sameValue(sample.getFloat64(3, false), 710670423110242000000, "3");
assert.sameValue(sample.getFloat64(4, false), 10846169068898440, "4");
assert.sameValue(sample.getFloat64(0, true), 747563348316297500000, "0, true");
assert.sameValue(sample.getFloat64(1, true), 11409110432516230, "1, true");
assert.sameValue(sample.getFloat64(2, true), 10846169068898440, "2, true");
assert.sameValue(sample.getFloat64(3, true), 710670423110242000000, "3, true");
assert.sameValue(sample.getFloat64(4, true), 747563348316297500000, "4, true");
reportCompare(0, 0);
|
