| // Copyright (c) 2017, 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 |
| /// Float64x2List.view( |
| /// ByteBuffer buffer, [ |
| /// int offsetInBytes = 0, |
| /// int length |
| /// ]) |
| /// Creates a Float64x2List view of the specified region in buffer. |
| /// @description Checks that an instance of [Float64x2List] is created. |
| /// @author ngl@unipro.ru |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| Float64x2 f64x2V(v) => new Float64x2.splat(v); |
| |
| void check(List<Float64x2> list, int offset, int length) { |
| Float64x2List tmp = new Float64x2List.fromList(list); |
| var byteBuffer = tmp.buffer; |
| Float64x2List l = new Float64x2List.view(byteBuffer, offset, length); |
| Expect.isTrue(l is Float64x2List); |
| Expect.runtimeIsType<Float64x2List>(l); |
| } |
| |
| main() { |
| var el_size = Float64x2List.bytesPerElement; |
| check([], 0, 0); |
| check([f64x2V(100.0), f64x2V(200.0), f64x2V(300.0)], 0, 3); |
| check([ |
| f64x2V(0.0), f64x2V(1.0), f64x2V(2.0), f64x2V(3.0), f64x2V(4.0), |
| f64x2V(5.0), f64x2V(6.0), f64x2V(7.0), f64x2V(8.0), f64x2V(9.0), |
| f64x2V(10.0), f64x2V(11.0), f64x2V(12.0), f64x2V(13.0), f64x2V(14.0), |
| f64x2V(15.0), f64x2V(16.0), f64x2V(17.0) |
| ], 0, 18); |
| check([ |
| f64x2V(0.0), f64x2V(1.0), f64x2V(2.0), f64x2V(3.0), f64x2V(4.0), |
| f64x2V(5.0), f64x2V(6.0), f64x2V(7.0), f64x2V(8.0), f64x2V(9.0), |
| f64x2V(10.0), f64x2V(11.0), f64x2V(12.0), f64x2V(13.0), f64x2V(14.0), |
| f64x2V(15.0), f64x2V(16.0), f64x2V(17.0) |
| ], 6 * el_size, 12); |
| check([ |
| f64x2V(0.0), f64x2V(1.0), f64x2V(2.0), f64x2V(3.0), f64x2V(4.0), |
| f64x2V(5.0), f64x2V(6.0), f64x2V(7.0), f64x2V(8.0), f64x2V(9.0), |
| f64x2V(10.0), f64x2V(11.0), f64x2V(12.0), f64x2V(13.0), f64x2V(14.0), |
| f64x2V(15.0), f64x2V(16.0), f64x2V(17.0) |
| ], 17 * el_size, 1); |
| } |