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//
// System.UIntPtr.cs
//
// Author:
// Michael Lambert (michaellambert@email.com)
//
// (C) 2001 Michael Lambert, All Rights Reserved
//
// Remarks:
// Requires '/unsafe' compiler option. This class uses void*,
// ulong, and uint in overloaded constructors, conversion, and
// cast members in the public interface. Using pointers is not
// valid CLS and the methods in question have been marked with
// the CLSCompliant attribute that avoid compiler warnings.
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Globalization;
using System.Runtime.Serialization;
using System.Runtime.InteropServices;
namespace System
{
[Serializable]
[CLSCompliant (false)]
#if NET_2_0
[System.Runtime.InteropServices.ComVisible (true)]
#endif
public unsafe struct UIntPtr : ISerializable
{
public static readonly UIntPtr Zero = new UIntPtr (0u);
private void* _pointer;
public UIntPtr (ulong value)
{
if ((value > UInt32.MaxValue) && (UIntPtr.Size < 8)) {
throw new OverflowException (
Locale.GetText ("This isn't a 64bits machine."));
}
_pointer = (void*) value;
}
public UIntPtr (uint value)
{
_pointer = (void*)value;
}
[CLSCompliant (false)]
public unsafe UIntPtr (void* value)
{
_pointer = value;
}
public override bool Equals (object obj)
{
if( obj is UIntPtr ) {
UIntPtr obj2 = (UIntPtr)obj;
return this._pointer == obj2._pointer;
}
return false;
}
public override int GetHashCode ()
{
return (int)_pointer;
}
public uint ToUInt32 ()
{
return (uint) _pointer;
}
public ulong ToUInt64 ()
{
return (ulong) _pointer;
}
[CLSCompliant (false)]
public unsafe void* ToPointer ()
{
return _pointer;
}
public override string ToString ()
{
return ((uint) _pointer).ToString();
}
// Interface ISerializable
void ISerializable.GetObjectData (SerializationInfo info, StreamingContext context)
{
if (info == null)
throw new ArgumentNullException ("info");
info.AddValue ("pointer", (ulong)_pointer);
}
public static bool operator == (UIntPtr value1, UIntPtr value2)
{
return value1._pointer == value2._pointer;
}
public static bool operator != (UIntPtr value1, UIntPtr value2)
{
return value1._pointer != value2._pointer;
}
public static explicit operator ulong (UIntPtr value)
{
return (ulong)value._pointer;
}
public static explicit operator uint (UIntPtr value)
{
return (uint)value._pointer;
}
public static explicit operator UIntPtr (ulong value)
{
return new UIntPtr (value);
}
[CLSCompliant (false)]
public unsafe static explicit operator UIntPtr (void* value)
{
return new UIntPtr (value);
}
[CLSCompliant (false)]
public unsafe static explicit operator void* (UIntPtr value)
{
return value.ToPointer ();
}
public static explicit operator UIntPtr (uint value)
{
return new UIntPtr (value);
}
public static int Size {
get { return sizeof (void*); }
}
}
}
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