| /* |
| * Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| * for details. All rights reserved. Use of this source code is governed by a |
| * BSD-style license that can be found in the LICENSE file. |
| */ |
| /** |
| * @assertion |
| * void setInt64( |
| * int byteOffset, |
| * int value, [ |
| * Endian endian = Endian.big |
| * ]) |
| * Sets the eight bytes starting at the specified [byteOffset] in this object to |
| * the two's complement binary representation of the specified [value], which |
| * must fit in eight bytes. |
| * In other words, [value] must lie between -pow(2, 63) and pow(2, 63) - 1, |
| * inclusive. |
| * @description Checks that the value at the [byteOffset] is set to [value]. |
| * @author msyabro |
| */ |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var i64 = new Int64List(16); |
| var valuesToBeSet = [ |
| 123, -95, -25, 98, 0, 113, -20, -9, 1, 9223372036854775807, |
| -9223372036854775808, -25, -69, -52, -125, 31 |
| ]; |
| var expectedBigEndian = [ |
| 8863084066665136128, -6773413839565225985, -1729382256910270465, |
| 7061644215716937728, 0, 8142508126285856768, -1369094286720630785, |
| -576460752303423489, 72057594037927936, -129, 128, -1729382256910270465, |
| -4899916394579099649, -3674937295934324737, -8935141660703064065, |
| 2233785415175766016 |
| ]; |
| int bytesInElement = Int64List.bytesPerElement; |
| |
| var byteDataFromI64 = new ByteData.view(i64.buffer); |
| for (int i = 0; i < byteDataFromI64.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromI64.setInt64(i * bytesInElement, valuesToBeSet[i], |
| Endian.little); |
| } |
| Expect.listEquals(valuesToBeSet, i64); |
| |
| for (int i = 0; i < byteDataFromI64.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromI64.setInt64(i * bytesInElement, valuesToBeSet[i]); |
| } |
| Expect.listEquals(expectedBigEndian, i64); |
| } |