LibTest/ffi/Uint64/Uint64_A01_t01.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 unsigned 64 bit integer in C.
///
/// @description Checks that this type represents a native unsigned 64 bit
/// integer in C.
/// @author sgrekhov@unipro.ru

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

void main() {
  Pointer<Uint64> p1 = calloc<Uint64>();
  try {
    Expect.equals(0, p1.value);
    p1.value = 42;
    Expect.equals(42, p1.value);
    p1.value = 32768;
    Expect.equals(32768, p1.value);
    p1.value = 2147483648;
    Expect.equals(2147483648, p1.value);
    p1.value = 0x7FFFFFFFFFFFFFFF;
    Expect.equals(0x7FFFFFFFFFFFFFFF, p1.value);
    p1.value = 0xFFFFFFFFFFFFFFFF;
    Expect.equals(-1, p1.value);
    p1.value = -9223372036854775808;
    Expect.equals(-9223372036854775808, p1.value);
  } finally {
    calloc.free(p1);
  }
}