| // 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 setUint64( |
| /// int byteOffset, |
| /// int value, [ |
| /// Endian endian = Endian.big |
| /// ]) |
| /// Sets the eight bytes starting at the specified [byteOffset] in this object to |
| /// the unsigned binary representation of the specified [value], which must fit |
| /// in eight bytes. |
| /// In other words, [value] must be between 0 and pow(2, 64) - 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 u64 = new Uint64List(16); |
| var valuesToBeSet = [ |
| 123, 95, 25, 98, 0, 113, 20, 9, 1, 9223372036854775807, |
| 1844674407370955161, 25, 69, 52, 125, 31 |
| ]; |
| var expectedBigEndian = [ |
| 8863084066665136128, 6845471433603153920, 1801439850948198400, |
| 7061644215716937728, 0, 8142508126285856768, 1441151880758558720, |
| 648518346341351424, 72057594037927936, -129, |
| -7378697629483820775, 1801439850948198400, 4971973988617027584, |
| 3746994889972252672, 9007199254740992000, 2233785415175766016 |
| ]; |
| int bytesInElement = Int64List.bytesPerElement; |
| |
| var byteDataFromU64 = new ByteData.view(u64.buffer); |
| for (int i = 0; i < byteDataFromU64.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromU64.setUint64( |
| i * bytesInElement, valuesToBeSet[i], Endian.little); |
| } |
| Expect.listEquals(valuesToBeSet, u64); |
| |
| for (int i = 0; i < byteDataFromU64.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromU64.setUint64(i * bytesInElement, valuesToBeSet[i]); |
| } |
| Expect.listEquals(expectedBigEndian, u64); |
| } |