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// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
// <Area> Nullable - Box-Unbox </Area>
// <Title> Nullable type with unbox box expr </Title>
// <Description>
// checking type of ulong using is operator
// </Description>
// <RelatedBugs> </RelatedBugs>
//<Expects Status=success></Expects>
// <Code>
using System.Runtime.InteropServices;
using System;
internal class NullableTest
{
private static bool BoxUnboxToNQ<T>(T o)
{
return Helper.Compare((ulong)(object)o, Helper.Create(default(ulong)));
}
private static bool BoxUnboxToQ<T>(T o)
{
return Helper.Compare((ulong?)(object)o, Helper.Create(default(ulong)));
}
private static int Main()
{
ulong? s = Helper.Create(default(ulong));
if (BoxUnboxToNQ(s) && BoxUnboxToQ(s))
return ExitCode.Passed;
else
return ExitCode.Failed;
}
}
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