| // 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 Int32x4.fromFloat32x4Bits(Float32x4 x) |
| /// Returns a bit-wise copy of x as a Int32x4. |
| /// @description Checks special cases. |
| /// @author msyabro |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var obj = new Float32x4(double.infinity, double.negativeInfinity, |
| double.nan, -double.nan); |
| var res = new Int32x4.fromFloat32x4Bits(obj); |
| |
| Expect.equals(0x7f800000, res.x); |
| Expect.equals(0xff800000.toUnsigned(32), res.y.toUnsigned(32)); |
| |
| var nanMask = 0x7f800000; |
| var fraction = 0x7fffff; |
| Expect.equals(nanMask, res.z & nanMask); |
| Expect.isTrue((res.z & fraction) != 0); |
| Expect.equals(nanMask, res.w & nanMask); |
| Expect.isTrue((res.w & fraction) != 0); |
| } |