From 51f8bb156ab8efba68d584a6dbc70a06bc25bfd8 Mon Sep 17 00:00:00 2001
From: James Ko <jamesqko@gmail.com>
Date: Fri, 26 Aug 2016 01:33:49 -0400
Subject: [PATCH] Implement the IEquatable interfaces on IntPtr and UIntPtr
 (dotnet/coreclr#6921)

Commit migrated from https://github.com/dotnet/coreclr/commit/74ac12bf9966c5f0f6c58b72bbb99b08727c3d4e
---
 src/coreclr/src/mscorlib/src/System/IntPtr.cs  | 8 +++++++-
 src/coreclr/src/mscorlib/src/System/UIntPtr.cs | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/coreclr/src/mscorlib/src/System/IntPtr.cs b/src/coreclr/src/mscorlib/src/System/IntPtr.cs
index d33cf91..c7eea36 100644
--- a/src/coreclr/src/mscorlib/src/System/IntPtr.cs
+++ b/src/coreclr/src/mscorlib/src/System/IntPtr.cs
@@ -24,7 +24,7 @@ namespace System {
 
     [Serializable]
     [System.Runtime.InteropServices.ComVisible(true)]
-    public struct IntPtr : ISerializable
+    public struct IntPtr : IEquatable<IntPtr>, ISerializable
     {
         [SecurityCritical]
         unsafe private void* m_value; // The compiler treats void* closest to uint hence explicit casts are required to preserve int behavior
@@ -104,6 +104,12 @@ namespace System {
             }
             return false;
         }
+
+        [SecuritySafeCritical]
+        unsafe bool IEquatable<IntPtr>.Equals(IntPtr other)
+        {
+            return m_value == other.m_value;
+        }
     
         [System.Security.SecuritySafeCritical]  // auto-generated
         public unsafe override int GetHashCode() {
diff --git a/src/coreclr/src/mscorlib/src/System/UIntPtr.cs b/src/coreclr/src/mscorlib/src/System/UIntPtr.cs
index 10a573a..ac3b811 100644
--- a/src/coreclr/src/mscorlib/src/System/UIntPtr.cs
+++ b/src/coreclr/src/mscorlib/src/System/UIntPtr.cs
@@ -22,7 +22,7 @@ namespace System {
     [Serializable]
     [CLSCompliant(false)] 
     [System.Runtime.InteropServices.ComVisible(true)]
-    public struct UIntPtr : ISerializable
+    public struct UIntPtr : IEquatable<UIntPtr>, ISerializable
     {
         [SecurityCritical]
         unsafe private void* m_value;
@@ -84,6 +84,12 @@ namespace System {
             }
             return false;
         }
+
+        [SecuritySafeCritical]
+        unsafe bool IEquatable<UIntPtr>.Equals(UIntPtr other)
+        {
+            return m_value == other.m_value;
+        }
     
         [System.Security.SecuritySafeCritical]  // auto-generated
         public unsafe override int GetHashCode() {
-- 
2.7.4