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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.
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.Serialization;
using System.Runtime.Versioning;
#if BIT64
using nint = System.Int64;
#else
using nint = System.Int32;
#endif
namespace System
{
[Serializable]
[System.Runtime.CompilerServices.TypeForwardedFrom("mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089")]
public readonly struct IntPtr : IEquatable<IntPtr>, ISerializable
{
// WARNING: We allow diagnostic tools to directly inspect this member (_value).
// See https://github.com/dotnet/corert/blob/master/Documentation/design-docs/diagnostics/diagnostics-tools-contract.md for more details.
// Please do not change the type, the name, or the semantic usage of this member without understanding the implication for tools.
// Get in touch with the diagnostics team if you have questions.
private readonly unsafe void* _value; // Do not rename (binary serialization)
[Intrinsic]
public static readonly IntPtr Zero;
[Intrinsic]
[NonVersionable]
public unsafe IntPtr(int value)
{
_value = (void*)value;
}
[Intrinsic]
[NonVersionable]
public unsafe IntPtr(long value)
{
#if BIT64
_value = (void*)value;
#else
_value = (void*)checked((int)value);
#endif
}
[CLSCompliant(false)]
[Intrinsic]
[NonVersionable]
public unsafe IntPtr(void* value)
{
_value = value;
}
private unsafe IntPtr(SerializationInfo info, StreamingContext context)
{
long l = info.GetInt64("value");
if (Size == 4 && (l > int.MaxValue || l < int.MinValue))
throw new ArgumentException(SR.Serialization_InvalidPtrValue);
_value = (void*)l;
}
unsafe void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
{
if (info == null)
throw new ArgumentNullException(nameof(info));
info.AddValue("value", ToInt64());
}
public unsafe override bool Equals(object obj)
{
if (obj is IntPtr)
{
return (_value == ((IntPtr)obj)._value);
}
return false;
}
unsafe bool IEquatable<IntPtr>.Equals(IntPtr other)
{
return _value == other._value;
}
public unsafe override int GetHashCode()
{
#if BIT64
long l = (long)_value;
return (unchecked((int)l) ^ (int)(l >> 32));
#else
return unchecked((int)_value);
#endif
}
[Intrinsic]
[NonVersionable]
public unsafe int ToInt32()
{
#if BIT64
long l = (long)_value;
return checked((int)l);
#else
return (int)_value;
#endif
}
[Intrinsic]
[NonVersionable]
public unsafe long ToInt64()
{
return (nint)_value;
}
[Intrinsic]
[NonVersionable]
public static unsafe explicit operator IntPtr(int value)
{
return new IntPtr(value);
}
[Intrinsic]
[NonVersionable]
public static unsafe explicit operator IntPtr(long value)
{
return new IntPtr(value);
}
[CLSCompliant(false)]
[Intrinsic]
[NonVersionable]
public static unsafe explicit operator IntPtr(void* value)
{
return new IntPtr(value);
}
[CLSCompliant(false)]
[Intrinsic]
[NonVersionable]
public static unsafe explicit operator void* (IntPtr value)
{
return value._value;
}
[Intrinsic]
[NonVersionable]
public static unsafe explicit operator int(IntPtr value)
{
#if BIT64
long l = (long)value._value;
return checked((int)l);
#else
return (int)value._value;
#endif
}
[Intrinsic]
[NonVersionable]
public static unsafe explicit operator long(IntPtr value)
{
return (nint)value._value;
}
[Intrinsic]
[NonVersionable]
public static unsafe bool operator ==(IntPtr value1, IntPtr value2)
{
return value1._value == value2._value;
}
[Intrinsic]
[NonVersionable]
public static unsafe bool operator !=(IntPtr value1, IntPtr value2)
{
return value1._value != value2._value;
}
[NonVersionable]
public static IntPtr Add(IntPtr pointer, int offset)
{
return pointer + offset;
}
[Intrinsic]
[NonVersionable]
public static unsafe IntPtr operator +(IntPtr pointer, int offset)
{
return new IntPtr((nint)pointer._value + offset);
}
[NonVersionable]
public static IntPtr Subtract(IntPtr pointer, int offset)
{
return pointer - offset;
}
[Intrinsic]
[NonVersionable]
public static unsafe IntPtr operator -(IntPtr pointer, int offset)
{
return new IntPtr((nint)pointer._value - offset);
}
public static int Size
{
[Intrinsic]
[NonVersionable]
get
{
return sizeof(nint);
}
}
[CLSCompliant(false)]
[Intrinsic]
[NonVersionable]
#if PROJECTN
[System.Runtime.CompilerServices.DependencyReductionRootAttribute]
#endif
public unsafe void* ToPointer()
{
return _value;
}
public unsafe override string ToString()
{
return ((nint)_value).ToString(CultureInfo.InvariantCulture);
}
public unsafe string ToString(string format)
{
return ((nint)_value).ToString(format, CultureInfo.InvariantCulture);
}
}
}
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