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include/platform/memory/nauto_ptr.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NAUTO_PTR__
+#define __NAUTO_PTR__
+
+
+		#include "alloc/ialloc.h"
+		#include "billing/billing.h"
+
+
+namespace GS {
+
+/*!
+	@short	Auto pointer.
+	@author	Emmanuel Julien (ejulien@gsworks.fr)
+*/
+template <class T> class AutoPtr
+{
+private:
+
+		T			*o;
+
+public:
+
+inline	operator	T*() const
+		{	return o;	}
+inline	T			*c_ptr() const
+		{	return o;	}
+
+inline	bool		IsNull() const	{	return o ? false : true;	}
+inline	bool		IsValid() const	{	return o ? true : false;	}
+
+		T			*operator = (T *p)
+		{
+			if	(o != p)
+			{
+				delete(o);
+				o = p;
+			}
+			return o;
+		}
+
+inline	T			&operator[] (size_t n)	{	return o[n];	}
+
+inline	bool		operator == (const T *p) const
+		{	return o == p;	}
+inline	bool		operator != (const T *p) const
+		{	return o != p;	}
+
+inline	T			*operator -> () const
+		{	return o;	}
+inline	T			&operator * () const
+		{	return *o;	}
+
+inline	T			*Detach()
+		{
+			T	*p = o;
+			o = 0;
+			return p;
+		}
+
+		explicit AutoPtr(T *p = 0) : o(p)
+		{}
+		~AutoPtr()
+		{
+			delete(o);
+			o = 0;
+		}
+};
+
+} // GS
+
+
+#endif	// __NAUTO_PTR__