| // Copyright (c) 2021, 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 Pointer<T> elementAt(int index) |
| /// Pointer arithmetic (takes element size into account). |
| /// This method must be invoked with a compile-time constant T. |
| /// Does not accept dynamic invocations -- where the type of the receiver is |
| /// dynamic. |
| /// |
| /// @description Checks that this method implements pointer arithmetic |
| /// @author sgrekhov@unipro.ru |
| |
| import "dart:ffi"; |
| import "package:ffi/ffi.dart"; |
| import '../../../Utils/expect.dart'; |
| |
| void main() { |
| Pointer<IntPtr> p1 = calloc<IntPtr>(3); |
| try { |
| Expect.isTrue(p1.elementAt(1).address - p1.address == 4 || |
| p1.elementAt(2).address - p1.elementAt(1).address == 8); |
| } finally { |
| calloc.free(p1); |
| } |
| } |