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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*============================================================
**
**
**
** Purpose: Platform independent integer
**
**
===========================================================*/
namespace System {
using System;
using System.Globalization;
using System.Runtime.Serialization;
using System.Security;
using System.Diagnostics.Contracts;
[Serializable]
[CLSCompliant(false)]
[System.Runtime.InteropServices.ComVisible(true)]
public struct UIntPtr : IEquatable<UIntPtr>, ISerializable
{
unsafe private void* m_value;
public static readonly UIntPtr Zero;
[System.Runtime.Versioning.NonVersionable]
public unsafe UIntPtr(uint value)
{
m_value = (void *)value;
}
[System.Runtime.Versioning.NonVersionable]
public unsafe UIntPtr(ulong value)
{
#if BIT64
m_value = (void *)value;
#else // 32
m_value = (void*)checked((uint)value);
#endif
}
[CLSCompliant(false)]
[System.Runtime.Versioning.NonVersionable]
public unsafe UIntPtr(void* value)
{
m_value = value;
}
private unsafe UIntPtr(SerializationInfo info, StreamingContext context) {
ulong l = info.GetUInt64("value");
if (Size==4 && l>UInt32.MaxValue) {
throw new ArgumentException(Environment.GetResourceString("Serialization_InvalidPtrValue"));
}
m_value = (void *)l;
}
unsafe void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
{
if (info==null) {
throw new ArgumentNullException(nameof(info));
}
Contract.EndContractBlock();
info.AddValue("value", (ulong)m_value);
}
public unsafe override bool Equals(Object obj) {
if (obj is UIntPtr) {
return (m_value == ((UIntPtr)obj).m_value);
}
return false;
}
unsafe bool IEquatable<UIntPtr>.Equals(UIntPtr other)
{
return m_value == other.m_value;
}
public unsafe override int GetHashCode() {
#if BIT64
ulong l = (ulong)m_value;
return (unchecked((int)l) ^ (int)(l >> 32));
#else // 32
return unchecked((int)m_value);
#endif
}
[System.Runtime.Versioning.NonVersionable]
public unsafe uint ToUInt32() {
#if BIT64
return checked((uint)m_value);
#else // 32
return (uint)m_value;
#endif
}
[System.Runtime.Versioning.NonVersionable]
public unsafe ulong ToUInt64() {
return (ulong)m_value;
}
public unsafe override String ToString() {
Contract.Ensures(Contract.Result<String>() != null);
#if BIT64
return ((ulong)m_value).ToString(CultureInfo.InvariantCulture);
#else // 32
return ((uint)m_value).ToString(CultureInfo.InvariantCulture);
#endif
}
[System.Runtime.Versioning.NonVersionable]
public static explicit operator UIntPtr (uint value)
{
return new UIntPtr(value);
}
[System.Runtime.Versioning.NonVersionable]
public static explicit operator UIntPtr (ulong value)
{
return new UIntPtr(value);
}
[System.Runtime.Versioning.NonVersionable]
public unsafe static explicit operator uint(UIntPtr value)
{
#if BIT64
return checked((uint)value.m_value);
#else // 32
return (uint)value.m_value;
#endif
}
[System.Runtime.Versioning.NonVersionable]
public unsafe static explicit operator ulong (UIntPtr value)
{
return (ulong)value.m_value;
}
[CLSCompliant(false)]
[System.Runtime.Versioning.NonVersionable]
public static unsafe explicit operator UIntPtr (void* value)
{
return new UIntPtr(value);
}
[CLSCompliant(false)]
[System.Runtime.Versioning.NonVersionable]
public static unsafe explicit operator void* (UIntPtr value)
{
return value.m_value;
}
[System.Runtime.Versioning.NonVersionable]
public unsafe static bool operator == (UIntPtr value1, UIntPtr value2)
{
return value1.m_value == value2.m_value;
}
[System.Runtime.Versioning.NonVersionable]
public unsafe static bool operator != (UIntPtr value1, UIntPtr value2)
{
return value1.m_value != value2.m_value;
}
[System.Runtime.Versioning.NonVersionable]
public static UIntPtr Add(UIntPtr pointer, int offset) {
return pointer + offset;
}
[System.Runtime.Versioning.NonVersionable]
public static UIntPtr operator +(UIntPtr pointer, int offset) {
#if BIT64
return new UIntPtr(pointer.ToUInt64() + (ulong)offset);
#else // 32
return new UIntPtr(pointer.ToUInt32() + (uint)offset);
#endif
}
[System.Runtime.Versioning.NonVersionable]
public static UIntPtr Subtract(UIntPtr pointer, int offset) {
return pointer - offset;
}
[System.Runtime.Versioning.NonVersionable]
public static UIntPtr operator -(UIntPtr pointer, int offset) {
#if BIT64
return new UIntPtr(pointer.ToUInt64() - (ulong)offset);
#else // 32
return new UIntPtr(pointer.ToUInt32() - (uint)offset);
#endif
}
public static int Size
{
[System.Runtime.Versioning.NonVersionable]
get
{
#if BIT64
return 8;
#else // 32
return 4;
#endif
}
}
[CLSCompliant(false)]
[System.Runtime.Versioning.NonVersionable]
public unsafe void* ToPointer()
{
return m_value;
}
}
}
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