From f01393e0ce47b124d711e7c3512bd2fab50e98bf Mon Sep 17 00:00:00 2001
From: Peter Dettman <peter.dettman@bouncycastle.org>
Date: Wed, 31 Aug 2022 01:48:36 +0700
Subject: Span-based variants for IAeadCipher.ProcessByte(s)

---
 crypto/src/util/Spans.cs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 crypto/src/util/Spans.cs

(limited to 'crypto/src/util')

diff --git a/crypto/src/util/Spans.cs b/crypto/src/util/Spans.cs
new file mode 100644
index 000000000..5e1b3737c
--- /dev/null
+++ b/crypto/src/util/Spans.cs
@@ -0,0 +1,18 @@
+#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
+using System;
+using System.Runtime.CompilerServices;
+
+#nullable enable
+
+namespace Org.BouncyCastle.Utilities
+{
+    internal static class Spans
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal static Span<T> FromNullable<T>(T[]? array, int start)
+        {
+            return array == null ? Span<T>.Empty : array.AsSpan(start);
+        }
+    }
+}
+#endif
-- 
cgit 1.4.1