From f0976ae9240a4071ca02bfe2cb108fbdad3fe853 Mon Sep 17 00:00:00 2001
From: dahall <dahall@byu.net>
Date: Wed, 27 May 2020 22:14:24 -0600
Subject: [PATCH] Added implicit conversion operator to SafeCoTaskMemStruct and
 SafeHGlobalStruct from nullable struct.

---
 Core/InteropServices/SafeMemStruct.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Core/InteropServices/SafeMemStruct.cs b/Core/InteropServices/SafeMemStruct.cs
index ca3bae82..53565b71 100644
--- a/Core/InteropServices/SafeMemStruct.cs
+++ b/Core/InteropServices/SafeMemStruct.cs
@@ -151,6 +151,11 @@ namespace Vanara.InteropServices
 		/// <param name="allocatedBytes">The number of bytes allocated to <paramref name="ptr"/>.</param>
 		[ExcludeFromCodeCoverage]
 		public SafeCoTaskMemStruct(IntPtr ptr, bool ownsHandle = true, SizeT allocatedBytes = default) : base(ptr, ownsHandle, allocatedBytes) { }
+
+		/// <summary>Performs an implicit conversion from <see cref="System.Nullable{TStruct}"/> to <see cref="SafeCoTaskMemStruct{TStruct}"/>.</summary>
+		/// <param name="s">The value of the <typeparamref name="TStruct"/> instance or <see langword="null"/>.</param>
+		/// <returns>The resulting <see cref="SafeCoTaskMemStruct{TStruct}"/> instance from the conversion.</returns>
+		public static implicit operator SafeCoTaskMemStruct<TStruct>(TStruct? s) => s.HasValue ? new SafeCoTaskMemStruct<TStruct>(s.Value) : new SafeCoTaskMemStruct<TStruct>(IntPtr.Zero);
 	}
 
 	/// <summary>
@@ -175,5 +180,10 @@ namespace Vanara.InteropServices
 		/// <param name="allocatedBytes">The number of bytes allocated to <paramref name="ptr"/>.</param>
 		[ExcludeFromCodeCoverage]
 		public SafeHGlobalStruct(IntPtr ptr, bool ownsHandle = true, SizeT allocatedBytes = default) : base(ptr, ownsHandle, allocatedBytes) { }
+
+		/// <summary>Performs an implicit conversion from <see cref="System.Nullable{TStruct}"/> to <see cref="SafeHGlobalStruct{TStruct}"/>.</summary>
+		/// <param name="s">The value of the <typeparamref name="TStruct"/> instance or <see langword="null"/>.</param>
+		/// <returns>The resulting <see cref="SafeHGlobalStruct{TStruct}"/> instance from the conversion.</returns>
+		public static implicit operator SafeHGlobalStruct<TStruct>(TStruct? s) => s.HasValue ? new SafeHGlobalStruct<TStruct>(s.Value) : new SafeHGlobalStruct<TStruct>(IntPtr.Zero);
 	}
 }
\ No newline at end of file