text: //
  //  Copyright (c) 2016, Riccardo Vianello
  //  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 the authors nor the names of their 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.
  //
  
  #include <RDGeneral/export.h>
  #ifndef BINARY_STRING_OPERATIONS_INCLUDED
  #define BINARY_STRING_OPERATIONS_INCLUDED
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
    void bitstringUnion(int length, uint8 *bstr1, uint8 *bstr2);
    void bitstringIntersection(int length, uint8 *bstr1, uint8 *bstr2);
  
    int bitstringWeight(int length, uint8 *bstr);
    int bitstringIntersectionWeight(int length, uint8 *bstr1, uint8 *bstr2);
    int bitstringDifferenceWeight(int length, uint8 *bstr1, uint8 *bstr2);
    
    int bitstringHemDistance(int length, uint8 *bstr1, uint8 *bstr2);
    double bitstringTanimotoSimilarity(int length, uint8 *bstr1, uint8 *bstr2);
    double bitstringTanimotoDistance(int length, uint8 *bstr1, uint8 *bstr2);
  
    bool bitstringContains(int length, uint8 *bstr1, uint8 *bstr2);
    bool bitstringIntersects(int length, uint8 *bstr1, uint8 *bstr2);
    bool bitstringAllTrue(int length, uint8 *bstr);
  
    void bitstringSimpleSubset(int length,
  			     uint8 *bstr, int sub_weight, uint8 *sub_bstr);
    void bitstringRandomSubset(int length, 
  			     int weight, uint8 *bstr,
  			     int sub_weight, uint8 *sub_bstr);
    
  #ifdef __cplusplus
  } /* extern "C" { */
  #endif
  
  #endif
  