Review changes, ManickaP dotnet#1

- fix shift count computation
- change acc size to 16 bits and append to it by byte

Author: rokonec

src/libraries/Common/src/System/Net/Http/aspnetcore/Http2/Hpack/Huffman.cs

@@ -422,21 +422,18 @@ public static int Decode(ReadOnlySpan<byte> src, ref byte[] dstArray)
             int lookupTableIndex = 0;
             int lookupIndex;
 
-            ulong acc = 0;
+            ushort acc = 0;
             int bitsInAcc = 0;
 
 
             int i = 0;
             int j = 0;
             while (i < src.Length)
             {
-                // Load bits into accumulator.
-                do
-                {
-                    acc <<= 8;
-                    acc |= src[i++];
-                    bitsInAcc += 8;
-                } while (i < src.Length && bitsInAcc + 8 <= 64);
+                // Load next 8 bits into accumulator.
+                acc <<= 8;
+                acc |= src[i++];
+                bitsInAcc += 8;
 
                 // Decode bits in accumulator.
                 do
@@ -492,7 +489,7 @@ public static int Decode(ReadOnlySpan<byte> src, ref byte[] dstArray)
                 if (lookupTableIndex == 0)
                 {
                     // Check if all remaining bits are ones.
-                    uint ones = uint.MaxValue >> (64 - bitsInAcc);
+                    uint ones = uint.MaxValue >> (32 - bitsInAcc);
                     if ((acc & ones) == ones)
                     {
                         // Is it a EOS. See: http://httpwg.org/specs/rfc7541.html#rfc.section.5.2

src/libraries/Common/src/System/Security/Cryptography/Asn1/AlgorithmIdentifierAsn.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/AttributeAsn.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/CurveAsn.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/DigestInfoAsn.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/DirectoryStringAsn.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/DssParms.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/ECDomainParameters.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/ECPrivateKey.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code

src/libraries/Common/src/System/Security/Cryptography/Asn1/EdiPartyNameAsn.xml.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 #pragma warning disable SA1028 // ignore whitespace warnings for generated code