/*********************************************************************************
 *  OKVIS - Open Keyframe-based Visual-Inertial SLAM
 *  Copyright (c) 2015, Autonomous Systems Lab / ETH Zurich
 *
 *  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 Autonomous Systems Lab / ETH Zurich 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.
 *
 *  Created on: 
 *      Author: Paul Furgale
 *    Modified: Stefan Leutenegger (s.leutenegger@imperial.ac.uk)
 *********************************************************************************/

/**
 * @file source_file_pos.hpp
 * @brief This file contains some helper functions for the assert macros.
 * @author Paul Furgale
 * @author Stefan Leutenegger
 */

#ifndef OKVIS_SOURCE_FILE_POS_HPP
#define OKVIS_SOURCE_FILE_POS_HPP

#include <string>
#include <iostream>
#include <sstream>
// A class and macro that gives you the current file position.

/// \brief okvis Main namespace of this package.
namespace okvis {

  class source_file_pos
  {
  public:
    std::string function;
    std::string file;
    int line;

    source_file_pos(std::string function, std::string file, int line) :
      function(function), file(file), line(line) {}

    operator std::string()
    {
      return toString();
    }

    std::string toString() const
    {
      std::stringstream s;
      s << file << ":" << line << ": " << function << "()";
      return s.str();
    }

  };

}// namespace okvis

inline std::ostream & operator<<(std::ostream & out, const okvis::source_file_pos & sfp)
{
  out << sfp.file << ":" << sfp.line << ": " << sfp.function << "()";
  return out;
}


#define OKVIS_SOURCE_FILE_POS okvis::source_file_pos(__FUNCTION__,__FILE__,__LINE__)

#endif // OKVIS_SOURCE_FILE_POS_HPP
