FindKeyPredicate.hxx

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// Copyright (C) 2007-2025  CEA, EDF, OPEN CASCADE
//
// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
 
//  File   : FindKeyPredicate.hxx
//  Author : Eric Fayolle (EDF)
//  Module : KERNEL
// Modified by : $LastChangedBy$
// Date        : $LastChangedDate: 2007-01-08 19:01:14 +0100 (lun, 08 jan 2007) $
// Id          : $Id$
//
#ifndef __FIND_KEY_PREDICATE__
#define __FIND_KEY_PREDICATE__
 
#include <functional>
#include <utility>
#include "DisplayPair.hxx"
 
template < typename T >
struct FindKeyPredicate : public std::unary_function < T, bool > 
{
  T _value;
  FindKeyPredicate(const T& value):_value(value){}
  inline bool operator()(const T &v1, const T& v2) const {
    std::cout << "FindKeyPredicate Generic -> :" << &(v1.first) << std::endl;
    return ( v1 == _value );
  }
};
 
// Pour les MAPs avec une clef sous forme de pair
// template <typename T1, typename T2, typename T3>
// struct FindKeyPredicate<  std::pair<const std::pair<T1,T2>, T3 > > : 
//   public std::binary_function < std::pair<const std::pair<T1,T2>, T3 >,
//                              std::pair<const std::pair<T1,T2>, T3 >, bool > 
// {
//   std::pair<T1,T2> _value;
//   FindKeyPredicate(const std::pair<T1,T2> & value):_value(value){
//     std::cout << "1-Initializing with value " << _value << std::endl;
//   }
//   bool operator()( const std::pair<const std::pair<T1,T2>, T3 > & v1,  
//                 const std::pair<const std::pair<T1,T2>, T3 > v2) const {
//     std::cout << "1-> :" << v1 << "," << v2 << " " << std::endl;
//     return (v1.first <= _value ) && (_value < v2.first) ;
//   }
// };
 
template <typename T1, typename T2>
struct FindKeyPredicate<  std::pair<T1,T2> > : public std::unary_function < std::pair<T1,T2>, bool > 
{
  T1 _value;
  FindKeyPredicate(const T1 & value):_value(value){
    std::cout << "FindKeyPredicate 2-Initializing with value " << _value << std::endl;
  }
  
  inline bool operator()( const std::pair<T1,T2> & v1) const {
    std::cout << "FindKeyPredicate 2-> :" << v1.first << std::endl;
    return v1.first == _value  ;
  }
};
 
#endif