SafeHandleZeroOrMinusOneIsInvalid.cs

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using System;
using System.Runtime.InteropServices;
 
namespace Microsoft.Win32.SafeHandles;
 
public abstract class SafeHandleZeroOrMinusOneIsInvalid : SafeHandle
{
    public override bool IsInvalid
    {
        get
        {
            if (!(handle == IntPtr.Zero))
            {
                return handle == new IntPtr(-1);
            }
            return true;
        }
    }
 
    protected SafeHandleZeroOrMinusOneIsInvalid(bool ownsHandle)
        : base(IntPtr.Zero, ownsHandle)
    {
    }
}