LibTest/ffi/Int16/Int16_A01_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 Represents a native signed 16 bit integer in C.
///
/// @description Checks that this type represents a native signed 16 bit integer
/// in C.
/// @author sgrekhov@unipro.ru

import "dart:ffi";
import "package:ffi/ffi.dart";
import "../../../Utils/expect.dart";

void main() {
  Pointer<Int16> p1 = calloc<Int16>();
  Pointer<Int32> p2 = new Pointer<Int32>.fromAddress(p1.address);
  try {
    p2.value = 42;
    Expect.equals(42, p1.value);
    p2.value = -42;
    Expect.equals(-42, p1.value);
    p2.value = 256;
    Expect.equals(256, p1.value);
    p2.value = 32767;
    Expect.equals(32767, p1.value);
    p2.value = 32768;
    Expect.equals(-32768, p1.value);
    p2.value = -32768;
    Expect.equals(-32768, p1.value);
    p2.value = -32769;
    Expect.equals(32767, p1.value);
  } finally {
    calloc.free(p1);
  }
}