LibTest/ffi/Int32/Int32_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 32 bit integer in C.
///
/// @description Checks that this type represents a native signed 32 bit integer
/// in C.
/// @author sgrekhov@unipro.ru

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

void main() {
  Pointer<Int32> p1 = calloc<Int32>();
  Pointer<Int64> p2 = new Pointer<Int64>.fromAddress(p1.address);
  try {
    p2.value = 42;
    Expect.equals(42, p1.value);
    p2.value = -42;
    Expect.equals(-42, p1.value);
    p2.value = 32768;
    Expect.equals(32768, p1.value);
    p2.value = -32768;
    Expect.equals(-32768, p1.value);
    p2.value = 2147483647;
    Expect.equals(2147483647, p1.value);
    p2.value = 2147483648;
    Expect.equals(-2147483648, p1.value);
    p2.value = -2147483649;
    Expect.equals(2147483647, p1.value);
  } finally {
    calloc.free(p1);
  }
}