From 5548ff6c71158170a36beba53b5e0097c627c8a1 Mon Sep 17 00:00:00 2001
From: David Hall <dahall@byu.net>
Date: Wed, 10 Apr 2019 13:11:06 -0600
Subject: [PATCH] Changed generic constraint on Write methods to struct instead
 of unmanaged

---
 Core/InteropServices/NativeMemoryStream.cs | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Core/InteropServices/NativeMemoryStream.cs b/Core/InteropServices/NativeMemoryStream.cs
index f06a6cde..23368ba6 100644
--- a/Core/InteropServices/NativeMemoryStream.cs
+++ b/Core/InteropServices/NativeMemoryStream.cs
@@ -49,9 +49,10 @@ namespace Vanara.InteropServices
 		/// <summary>Initializes a new instance of the <see cref="NativeMemoryStream"/> class with a pointer and allows for dynamic growth.</summary>
 		/// <param name="unmanagedPtr">The pointer to unmanaged, preallocated memory.</param>
 		/// <param name="bytesAllocated">The bytes allocated to <paramref name="unmanagedPtr"/>.</param>
-		public NativeMemoryStream(IntPtr unmanagedPtr, long bytesAllocated)
+		/// <param name="access">The mode of file access to the native memory stream.</param>
+		public NativeMemoryStream(IntPtr unmanagedPtr, long bytesAllocated, FileAccess access = FileAccess.Read)
 		{
-			access = FileAccess.Read;
+			this.access = access;
 			chunkSize = 0;
 			Pointer = unmanagedPtr;
 			MaxCapacity = capacity = bytesAllocated;
@@ -321,7 +322,7 @@ namespace Vanara.InteropServices
 		/// <summary>Writes the specified value into the stream.</summary>
 		/// <typeparam name="T">The type of the value.</typeparam>
 		/// <param name="value">The value.</param>
-		public void Write<T>(in T value) where T : unmanaged => WriteObject(value);
+		public void Write<T>(in T value) where T : struct => WriteObject(value);
 
 		/// <summary>Writes the specified string into the stream.</summary>
 		/// <param name="value">The string value.</param>
@@ -340,7 +341,7 @@ namespace Vanara.InteropServices
 		/// <typeparam name="T">The type of the array item.</typeparam>
 		/// <param name="items">The items.</param>
 		/// <param name="byRef">Write values as a referenced array.</param>
-		public void Write<T>(IEnumerable<T> items, bool byRef = false) where T : unmanaged
+		public void Write<T>(IEnumerable<T> items, bool byRef = false) where T : struct
 		{
 			if (access == FileAccess.Read) throw new NotSupportedException();
 			if (items == null) return;