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diff --git a/ovr_sdk_win_23.0.0/LibOVRKernel/Src/Kernel/OVR_StringHash.h b/ovr_sdk_win_23.0.0/LibOVRKernel/Src/Kernel/OVR_StringHash.h
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+/************************************************************************************
+
+PublicHeader:   None
+Filename    :   OVR_StringHash.h
+Content     :   String hash table used when optional case-insensitive
+                lookup is required.
+Created     :   September 19, 2012
+Notes       :
+
+Copyright   :   Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
+
+Licensed under the Oculus Master SDK License Version 1.0 (the "License");
+you may not use the Oculus VR Rift SDK except in compliance with the License,
+which is provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+You may obtain a copy of the License at
+
+https://developer.oculus.com/licenses/oculusmastersdk-1.0
+
+Unless required by applicable law or agreed to in writing, the Oculus VR SDK
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+************************************************************************************/
+
+#ifndef OVR_StringHash_h
+#define OVR_StringHash_h
+
+#include "OVR_Hash.h"
+#include "OVR_String.h"
+
+namespace OVR {
+
+//-----------------------------------------------------------------------------------
+// *** StringHash
+
+// This is a custom string hash table that supports case-insensitive
+// searches through special functions such as GetCaseInsensitive, etc.
+// This class is used for Flash labels, exports and other case-insensitive tables.
+
+template <class U, class Allocator = ContainerAllocator<U>>
+class StringHash : public Hash<String, U, String::NoCaseHashFunctor, Allocator> {
+ public:
+  typedef U ValueType;
+  typedef StringHash<U, Allocator> SelfType;
+  typedef Hash<String, U, String::NoCaseHashFunctor, Allocator> BaseType;
+
+ public:
+  void operator=(const SelfType& src) {
+    BaseType::operator=(src);
+  }
+
+  bool GetCaseInsensitive(const String& key, U* pvalue) const {
+    String::NoCaseKey ikey(key);
+    return BaseType::GetAlt(ikey, pvalue);
+  }
+  // Pointer-returning get variety.
+  const U* GetCaseInsensitive(const String& key) const {
+    String::NoCaseKey ikey(key);
+    return BaseType::GetAlt(ikey);
+  }
+  U* GetCaseInsensitive(const String& key) {
+    String::NoCaseKey ikey(key);
+    return BaseType::GetAlt(ikey);
+  }
+
+  typedef typename BaseType::Iterator base_iterator;
+
+  base_iterator FindCaseInsensitive(const String& key) {
+    String::NoCaseKey ikey(key);
+    return BaseType::FindAlt(ikey);
+  }
+
+  // Set just uses a find and assigns value if found. The key is not modified;
+  // this behavior is identical to Flash string variable assignment.
+  void SetCaseInsensitive(const String& key, const U& value) {
+    base_iterator it = FindCaseInsensitive(key);
+    if (it != BaseType::End()) {
+      it->Second = value;
+    } else {
+      BaseType::Add(key, value);
+    }
+  }
+};
+
+} // namespace OVR
+
+#endif