///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
// Digital Ltd. 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 Industrial Light & Magic 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER OR CONTRIBUTORS 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 INCLUDED_IMF_AUTO_ARRAY_H
#define INCLUDED_IMF_AUTO_ARRAY_H

//-----------------------------------------------------------------------------
//
//	class AutoArray -- a workaround for systems with
//	insufficient stack space for large auto arrays.
//
//-----------------------------------------------------------------------------

#include "ImfNamespace.h"
#include <string.h>

OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER


#if !defined (HAVE_LARGE_STACK)


    template <class T, int size>
    class AutoArray
    {
      public:

	 AutoArray (): _data (new T [size]) { memset(_data, 0, size*sizeof(T)); }
	~AutoArray () {delete [] _data;}

        AutoArray (const AutoArray& other) = delete;
        AutoArray& operator = (const AutoArray& other) = delete;
        AutoArray (AutoArray&& other) = delete;
        AutoArray& operator = (AutoArray&& other) = delete;
        
	operator T * ()			{return _data;}
	operator const T * () const	{return _data;}
      
      private:

	T *_data;
    };


#else


    template <class T, int size>
    class AutoArray
    {
      public:

	operator T * ()			{return _data;}
	operator const T * () const	{return _data;}
      
      private:

	T _data[size];
    };


#endif

OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT


#endif
