IntPtr.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / IntPtr.cs / 1 / IntPtr.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:  IntPtr 
**
** 
** Purpose: Platform independent integer
**
**
===========================================================*/ 

namespace System { 
 
    using System;
    using System.Globalization; 
    using System.Runtime.Serialization;
    using System.Runtime.CompilerServices;
    using System.Runtime.ConstrainedExecution;
 
    [Serializable]
[System.Runtime.InteropServices.ComVisible(true)] 
    public struct IntPtr : ISerializable 
    {
 
        unsafe private void* m_value; // The compiler treats void* closest to uint hence explicit casts are required to preserve int behavior

        public static readonly IntPtr Zero;
 
        // fast way to compare IntPtr to (IntPtr)0 while IntPtr.Zero doesn't work due to slow statics access
        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] 
        internal unsafe bool IsNull() 
        {
            return (this.m_value == null); 
        }

        [ReliabilityContract(Consistency.MayCorruptInstance, Cer.MayFail)]
        public unsafe IntPtr(int value) 
        {
            #if WIN32 
                m_value = (void *)value; 
            #else
                m_value = (void *)(long)value; 
            #endif
        }

        [ReliabilityContract(Consistency.MayCorruptInstance, Cer.MayFail)] 
        public unsafe IntPtr(long value)
        { 
            #if WIN32 
                m_value = (void *)checked((int)value);
            #else 
                m_value = (void *)value;
            #endif
        }
 
        [CLSCompliant(false)]
        [ReliabilityContract(Consistency.MayCorruptInstance, Cer.MayFail)] 
        public unsafe IntPtr(void* value) 
        {
            m_value = value; 
        }

        private unsafe IntPtr(SerializationInfo info, StreamingContext context) {
            long l = info.GetInt64("value"); 

            if (Size==4 && (l>Int32.MaxValue || l

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