1 files changed, 98 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Globalization/SortVersion.cs b/src/mscorlib/shared/System/Globalization/SortVersion.cs
new file mode 100644
index 0000000000..a7aef6d84b
--- /dev/null
+++ b/src/mscorlib/shared/System/Globalization/SortVersion.cs
@@ -0,0 +1,98 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+namespace System.Globalization
+{
+    [Serializable]
+    public sealed class SortVersion : IEquatable<SortVersion>
+    {
+        private int _nlsVersion;
+        private Guid _sortId;
+
+        public int FullVersion
+        {
+            get
+            {
+                return _nlsVersion;
+            }
+        }
+
+        public Guid SortId
+        {
+            get
+            {
+                return _sortId;
+            }
+        }
+
+        public SortVersion(int fullVersion, Guid sortId)
+        {
+            _sortId = sortId;
+            _nlsVersion = fullVersion;
+        }
+
+        internal SortVersion(int nlsVersion, int effectiveId, Guid customVersion)
+        {
+            _nlsVersion = nlsVersion;
+
+            if (customVersion == Guid.Empty)
+            {
+                byte b1 = (byte)(effectiveId >> 24);
+                byte b2 = (byte)((effectiveId & 0x00FF0000) >> 16);
+                byte b3 = (byte)((effectiveId & 0x0000FF00) >> 8);
+                byte b4 = (byte)(effectiveId & 0xFF);
+                customVersion = new Guid(0, 0, 0, 0, 0, 0, 0, b1, b2, b3, b4);
+            }
+
+            _sortId = customVersion;
+        }
+
+        public override bool Equals(object obj)
+        {
+            SortVersion n = obj as SortVersion;
+            if (n != null)
+            {
+                return this.Equals(n);
+            }
+
+            return false;
+        }
+
+        public bool Equals(SortVersion other)
+        {
+            if (other == null)
+            {
+                return false;
+            }
+
+            return _nlsVersion == other._nlsVersion && _sortId == other._sortId;
+        }
+
+        public override int GetHashCode()
+        {
+            return _nlsVersion * 7 | _sortId.GetHashCode();
+        }
+
+        public static bool operator ==(SortVersion left, SortVersion right)
+        {
+            if (((object)left) != null)
+            {
+                return left.Equals(right);
+            }
+
+            if (((object)right) != null)
+            {
+                return right.Equals(left);
+            }
+
+            // Both null.
+            return true;
+        }
+
+        public static bool operator !=(SortVersion left, SortVersion right)
+        {
+            return !(left == right);
+        }
+    }
+}