LibTest/ffi/Pointer/elementAt_A04_t02.dart

// 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 it is allowed to read memory outside the border
 * @author sgrekhov@unipro.ru
 */
import "dart:ffi";
import "package:ffi/ffi.dart";

void main() {
  Pointer<Int8> p1 = calloc<Int8>(3);
  try {
    p1.elementAt(42);
  } finally {
    calloc.free(p1);
  }
}