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diff --git a/lib/libUPnP/Neptune/Source/Core/NptStack.h b/lib/libUPnP/Neptune/Source/Core/NptStack.h
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+/*****************************************************************
+|
+|   Neptune - Stack
+|
+| Copyright (c) 2002-2008, Axiomatic Systems, LLC.
+| All rights reserved.
+|
+| Redistribution and use in source and binary forms, with or without
+| modification, are permitted provided that the following conditions are met:
+|     * Redistributions of source code must retain the above copyright
+|       notice, this list of conditions and the following disclaimer.
+|     * Redistributions in binary form must reproduce the above copyright
+|       notice, this list of conditions and the following disclaimer in the
+|       documentation and/or other materials provided with the distribution.
+|     * Neither the name of Axiomatic Systems nor the
+|       names of its contributors may be used to endorse or promote products
+|       derived from this software without specific prior written permission.
+|
+| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
+| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+| DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
+| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+|
+****************************************************************/
+
+#ifndef _NPT_STACK_H_
+#define _NPT_STACK_H_
+
+/*----------------------------------------------------------------------
+|   includes
++---------------------------------------------------------------------*/
+#include "NptResults.h"
+#include "NptTypes.h"
+#include "NptList.h"
+
+/*----------------------------------------------------------------------
+|   NPT_Stack
++---------------------------------------------------------------------*/
+template <typename T> 
+class NPT_Stack : public NPT_List<T>
+{
+public:
+    // methods
+    NPT_Result Push(const T& value) {
+        // NOTE: we must use the this-> accessor here because the standard
+        // requires it when the member to look up is in a parent template
+        return this->Add(value);
+    }
+
+    NPT_Result Peek(T& value) {
+        // NOTE: we must use the this-> accessor here because the standard
+        // requires it when the member to look up is in a parent template
+        if (this->m_ItemCount == 0) return NPT_ERROR_NO_SUCH_ITEM;
+        value = this->m_Tail->m_Data;
+        return NPT_SUCCESS;
+    }
+
+    NPT_Result Pop(T& value) {
+        // NOTE: we must use the this-> accessor here because the standard
+        // requires it when the member to look up is in a parent template
+        if (this->m_ItemCount == 0) return NPT_ERROR_NO_SUCH_ITEM;
+        typename NPT_List<T>::Iterator tail = this->GetLastItem();
+        value = *tail;
+        return this->Erase(tail);
+    }
+};
+
+#endif // _NPT_STACK_H_