text: /***********************************************************************
   * Software License Agreement (BSD License)
   *
   * Copyright 2008-2009  Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
   * Copyright 2008-2009  David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. 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.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
   *************************************************************************/
  
  #include "precomp.hpp"
  #include "opencv2/flann.hpp"
  
  namespace cvflann
  {
      /** Global variable indicating the distance metric to be used.
       * \deprecated Provided for backward compatibility
      */
      flann_distance_t flann_distance_type_ = FLANN_DIST_L2;
      flann_distance_t flann_distance_type() { return flann_distance_type_; }
  
      /**
       * Set distance type to used
       * \deprecated
       */
      void set_distance_type(flann_distance_t distance_type, int /*order*/)
      {
  #ifndef OPENCV_SGX
          printf("[WARNING] The cvflann::set_distance_type function is deperecated, "
              "use cv::flann::GenericIndex<Distance> instead.\n");
          if (distance_type != FLANN_DIST_L1 && distance_type != FLANN_DIST_L2) {
              printf("[ERROR] cvflann::set_distance_type only provides backwards compatibility "
              "for the L1 and L2 distances. "
              "For other distance types you must use cv::flann::GenericIndex<Distance>\n");
          }
  #endif // OPENCV_SGX
          flann_distance_type_ = distance_type;
      }
  
  }
  