| // 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 E reduce(E combine(E value, E element)) |
| /// Reduces a collection to a single value by iteratively combining elements of |
| /// the collection using the provided function. |
| /// @description Checks that the correct value is returned. |
| /// @author ngl@unipro.ru |
| |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| Float64x2 f64x2(v) => new Float64x2.splat(v); |
| |
| check(List<Float64x2> list, Float64x2 expected) { |
| var l = new Float64x2List.fromList(list); |
| var res = l.reduce((prev, cur) => prev + cur); |
| Expect.equals(expected.x, res.x); |
| Expect.equals(expected.y, res.y); |
| } |
| |
| checkConst(List<Float64x2> list, Float64x2 expected) { |
| var l = new Float64x2List.fromList(list); |
| var res = l.reduce((prev, cur) => f64x2(11.0)); |
| Expect.equals(expected.x, res.x); |
| Expect.equals(expected.y, res.y); |
| } |
| |
| main() { |
| check([f64x2(1.0), f64x2(2.0)], f64x2(3.0)); |
| check([f64x2(1.0), f64x2(3.0), f64x2(5.0), f64x2(7.0), f64x2(9.0)], |
| f64x2(25.0)); |
| |
| checkConst([f64x2(1.0), f64x2(2.0)], f64x2(11.0)); |
| checkConst([f64x2(1.0), f64x2(3.0), f64x2(5.0), f64x2(7.0), f64x2(9.0)], |
| f64x2(11.0)); |
| } |