Added most recent version of unmodified HL2 SDK for Orange Box engine

public/crtmemdebug.cpp

@@ -0,0 +1,44 @@
+//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#if !defined(_STATIC_LINKED) || defined(_SHARED_LIB)
+
+#include "crtmemdebug.h"
+#ifdef USECRTMEMDEBUG
+#include <crtdbg.h>
+#endif
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+void CheckHeap( void )
+{
+#ifdef USECRTMEMDEBUG
+	_CrtCheckMemory();
+#endif
+}
+
+// undone: this needs to be somehow made to construct before everything else.
+// see http://msdn.microsoft.com/library/periodic/period97/dembugs.htm for info
+void InitCRTMemDebug( void )
+{
+#ifdef USECRTMEMDEBUG
+	_CrtSetDbgFlag( 
+//	_CRTDBG_ALLOC_MEM_DF  | 
+	_CRTDBG_CHECK_ALWAYS_DF |
+	_CRTDBG_CHECK_CRT_DF | 
+	_CRTDBG_DELAY_FREE_MEM_DF );
+#endif
+}
+
+#endif // !_STATIC_LINKED || _SHARED_LIB