// -*- coding: utf-8 -*-
// Copyright (C) 2011, 2013 Laboratoire de Recherche et Developpement
// de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#ifndef SPOT_MISC_INTVCOMP_HH
# define SPOT_MISC_INTVCOMP_HH

# include "common.hh"
# include <vector>
# include <stddef.h>

namespace spot
{
  /// \addtogroup misc_tools
  /// @{

  /// Compress an int vector into a vector of unsigned int.
  SPOT_API void
  int_vector_vector_compress(const std::vector<int>& input,
			     std::vector<unsigned int>& output);

  /// \brief Uncompress a vector of unsigned int into a vector of
  ///        size \a size.
  ///
  /// \a size must be the exact expected size of uncompressed array.
  SPOT_API void
  int_vector_vector_decompress(const std::vector<unsigned int>& array,
			       std::vector<int>& output, size_t size);

  /// Compress an int array if size \a n into a vector of unsigned int.
  SPOT_API const std::vector<unsigned int>*
  int_array_vector_compress(const int* array, size_t n);

  /// \brief Uncompress a vector of unsigned int into an int array of
  ///        size \a size.
  ///
  /// \a size must be the exact expected size of uncompressed array.
  SPOT_API void
  int_vector_array_decompress(const std::vector<unsigned int>* array,
			      int* res, size_t size);

  /// \brief Compress an int array of size \a n into a int array.
  ///
  /// The destination array should be at least \a dest_size large An
  /// assert will be triggered if \a dest_size is too small.  On
  /// return, \a dest_size will be set to the actually number of int
  /// filled in \a dest
  SPOT_API void
  int_array_array_compress(const int* array, size_t n,
			   int* dest, size_t& dest_size);

  /// \brief Uncompress an int array of size \a array_size into a int
  ///        array of size \a size.
  ///
  /// \a size must be the exact expected size of uncompressed array.
  SPOT_API void
  int_array_array_decompress(const int* array, size_t array_size,
			     int* res, size_t size);

  /// @}
}

#endif // SPOT_MISC_INTVCOMP_HH