Serial-Studio/lib/QRealFourier/fftreal/DynArray.hpp

/*****************************************************************************

        DynArray.hpp
        By Laurent de Soras

--- Legal stuff ---

This program is free software. It comes without any warranty, to
the extent permitted by applicable law. You can redistribute it
and/or modify it under the terms of the Do What The Fuck You Want
To Public License, Version 2, as published by Sam Hocevar. See
http://sam.zoy.org/wtfpl/COPYING for more details.

*Tab=3***********************************************************************/

#if defined(ffft_DynArray_CURRENT_CODEHEADER)
#  error Recursive inclusion of DynArray code header.
#endif
#define ffft_DynArray_CURRENT_CODEHEADER

#if !defined(ffft_DynArray_CODEHEADER_INCLUDED)
#  define ffft_DynArray_CODEHEADER_INCLUDED

/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

#  include <cassert>

namespace ffft
{

/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

template<class T>
DynArray<T>::DynArray()
  : _data_ptr(0)
  , _len(0)
{
  // Nothing
}

template<class T>
DynArray<T>::DynArray(long size)
  : _data_ptr(0)
  , _len(0)
{
  assert(size >= 0);
  if (size > 0)
  {
    _data_ptr = new DataType[size];
    _len = size;
  }
}

template<class T>
DynArray<T>::~DynArray()
{
  delete[] _data_ptr;
  _data_ptr = 0;
  _len = 0;
}

template<class T>
long DynArray<T>::size() const
{
  return (_len);
}

template<class T>
void DynArray<T>::resize(long size)
{
  assert(size >= 0);
  if (size > 0)
  {
    DataType *old_data_ptr = _data_ptr;
    DataType *tmp_data_ptr = new DataType[size];

    _data_ptr = tmp_data_ptr;
    _len = size;

    delete[] old_data_ptr;
  }
}

template<class T>
const typename DynArray<T>::DataType &DynArray<T>::operator[](long pos) const
{
  assert(pos >= 0);
  assert(pos < _len);

  return (_data_ptr[pos]);
}

template<class T>
typename DynArray<T>::DataType &DynArray<T>::operator[](long pos)
{
  assert(pos >= 0);
  assert(pos < _len);

  return (_data_ptr[pos]);
}

/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

} // namespace ffft

#endif // ffft_DynArray_CODEHEADER_INCLUDED

#undef ffft_DynArray_CURRENT_CODEHEADER

/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/