1 files changed, 124 insertions, 0 deletions
diff --git a/include/irrAllocator.h b/include/irrAllocator.h
new file mode 100644
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--- /dev/null
+++ b/include/irrAllocator.h
@@ -0,0 +1,124 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine" and the "irrXML" project.
+// For conditions of distribution and use, see copyright notice in irrlicht.h and irrXML.h
+
+#ifndef __IRR_ALLOCATOR_H_INCLUDED__
+#define __IRR_ALLOCATOR_H_INCLUDED__
+
+#include "irrTypes.h"
+#include <new>
+// necessary for older compilers
+#include <memory.h>
+
+namespace irr
+{
+namespace core
+{
+
+#ifdef DEBUG_CLIENTBLOCK
+#undef DEBUG_CLIENTBLOCK
+#define DEBUG_CLIENTBLOCK new
+#endif
+
+//! Very simple allocator implementation, containers using it can be used across dll boundaries
+template<typename T>
+class irrAllocator
+{
+public:
+
+	//! Destructor
+	virtual ~irrAllocator() {}
+
+	//! Allocate memory for an array of objects
+	T* allocate(size_t cnt)
+	{
+		return (T*)internal_new(cnt* sizeof(T));
+	}
+
+	//! Deallocate memory for an array of objects
+	void deallocate(T* ptr)
+	{
+		internal_delete(ptr);
+	}
+
+	//! Construct an element
+	void construct(T* ptr, const T&e)
+	{
+		new ((void*)ptr) T(e);
+	}
+
+	//! Destruct an element
+	void destruct(T* ptr)
+	{
+		ptr->~T();
+	}
+
+protected:
+
+	virtual void* internal_new(size_t cnt)
+	{
+		return operator new(cnt);
+	}
+
+	virtual void internal_delete(void* ptr)
+	{
+		operator delete(ptr);
+	}
+
+};
+
+
+//! Fast allocator, only to be used in containers inside the same memory heap.
+/** Containers using it are NOT able to be used it across dll boundaries. Use this
+when using in an internal class or function or when compiled into a static lib */
+template<typename T>
+class irrAllocatorFast
+{
+public:
+
+	//! Allocate memory for an array of objects
+	T* allocate(size_t cnt)
+	{
+		return (T*)operator new(cnt* sizeof(T));
+	}
+
+	//! Deallocate memory for an array of objects
+	void deallocate(T* ptr)
+	{
+		operator delete(ptr);
+	}
+
+	//! Construct an element
+	void construct(T* ptr, const T&e)
+	{
+		new ((void*)ptr) T(e);
+	}
+
+	//! Destruct an element
+	void destruct(T* ptr)
+	{
+		ptr->~T();
+	}
+};
+
+
+
+#ifdef DEBUG_CLIENTBLOCK
+#undef DEBUG_CLIENTBLOCK
+#define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__)
+#endif
+
+//! defines an allocation strategy
+enum eAllocStrategy
+{
+	ALLOC_STRATEGY_SAFE    = 0,
+	ALLOC_STRATEGY_DOUBLE  = 1,
+	ALLOC_STRATEGY_SQRT    = 2
+};
+
+
+} // end namespace core
+} // end namespace irr
+
+#endif
+