| // 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 setUint32( |
| /// int byteOffset, |
| /// int value, [ |
| /// Endian endian = Endian.big |
| /// ]) |
| /// Sets the four bytes starting at the specified [byteOffset] in this object to |
| /// the unsigned binary representation of the specified [value], which must fit |
| /// in four bytes. |
| /// In other words, [value] must be between 0 and pow(2, 32) - 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 u32 = new Uint32List(16); |
| var valuesToBeSet = [ |
| 123, 95, 25, 98, 0, 113, 20, 9, 1, 4294967295, 2147483648, 25, 69, 52, |
| 125, 31 |
| ]; |
| var expectedBigEndian = [ |
| 2063597568, 1593835520, 419430400, 1644167168, 0, 1895825408, 335544320, |
| 150994944, 16777216, 4294967295, 128, 419430400, 1157627904, 872415232, |
| 2097152000, 520093696 |
| ]; |
| int bytesInElement = Int32List.bytesPerElement; |
| |
| var byteDataFromU32 = new ByteData.view(u32.buffer); |
| for (int i = 0; i < byteDataFromU32.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromU32.setUint32(i * bytesInElement, valuesToBeSet[i], |
| Endian.little); |
| } |
| Expect.listEquals(valuesToBeSet, u32); |
| |
| for (int i = 0; i < byteDataFromU32.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromU32.setUint32(i * bytesInElement, valuesToBeSet[i]); |
| } |
| Expect.listEquals(expectedBigEndian, u32); |
| } |