| // 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 |
| /// Float32List.view( |
| /// ByteBuffer buffer, [ |
| /// int byteOffset = 0, int length |
| /// ]) |
| /// ... |
| /// If the length is not specified, it defaults to null, which indicates that |
| /// the view extends to the end of the byte buffer. |
| /// @description Checks that if the [length] is not specified, the view extends |
| /// to the end of the byte buffer. |
| /// @author msyabro |
| |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| void check(List<double> array, int offset, int numberOfElements) { |
| double lastElement = array.last; |
| var tmp = new Float32List.fromList(array); |
| var byteBuffer = tmp.buffer; |
| var l = new Float32List.view(byteBuffer, offset); |
| Expect.equals(numberOfElements, l.length); |
| Expect.equals(lastElement, l[numberOfElements - 1]); |
| } |
| |
| main() { |
| check([ |
| 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, |
| 13.0, 14.0, 15.0, 16.0, 17.0 |
| ], 0, 18); |
| check([ |
| 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, |
| 13.0, 14.0, 15.0, 16.0, 17.0 |
| ], 4, 17); |
| check([ |
| 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, |
| 13.0, 14.0, 15.0, 16.0, 17.0 |
| ], 68, 1); |
| } |