/* -*- mode: c++ -*- 
*/
/* 

    GIFT, a flexible content based image retrieval system.
    Copyright (C) 1998, 1999, 2000 CUI, University of Geneva

    This program 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 2 of the License, or
    (at your option) any later version.

    This program 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, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/
#ifndef _CPERSISTENTVECTOR
#define _CPERSISTENTVECTOR

#include <vector>
#include <algorithm>
#include <functional>
#include <iostream.h>
#include <fstream.h>

template<class T>
void binary_writer(ostream& outStream,
		   const T& inToBeWritten){
  outStream.write(&inToBeWritten,
		  sizeof(inToBeWritten));
}

template<class T>
void binary_reader(istream& inStream,
		   T& inToBeRead){
  inStream.read(&inToBeRead,
		sizeof(inToBeRead));
}

///
template<class T>
class CPersistentVector:public vector<T>{
  ///
  long mLength;
public:
  ///
  CPersistentVector(long inLength);
  ///
  bool read(istream& inStream);
  ///
  bool read(istream& inStream,
	    long inNumRecords);
  ///
  bool write(ostream& outStream)const;
  ///
  void init(T const& inDefaultValue);
};

template<class T>
CPersistentVector<T>::CPersistentVector(long inLength):
  mLength(inLength),
  vector<T>(inLength)
{
}

template<class T>
void CPersistentVector<T>::init(T const& inDefaultValue){
  
  constant_void_fun<T> f(inDefaultValue);

  clear();
  reserve(mLength);
  for(long i=0;
      i<mLength;
      i++){
    push_back(f());
  }
}

template<class T>
bool CPersistentVector<T>::read(istream& inStream){
  return read(inStream,
       mLength);
}

template<class T>
bool CPersistentVector<T>::read(istream& inStream,
				long inLength){
  reserve(inLength);
  clear();
  for(long i=0;
      i<inLength;
      i++){
    T lToBeRead;
    binary_reader(inStream,
		  lToBeRead);

    assert(lToBeRead>=0 && lToBeRead<=1);

    push_back(lToBeRead);
  }
  mLength=inLength;
  return inStream;
}

template<class T>
bool CPersistentVector<T>::write(ostream& outStream)const{
  for(const_iterator i=begin();
      i!=end();
      i++){
    binary_writer(outStream,
		  *i);
  }
  outStream << flush;
  return outStream;
}

#endif

Documentation generated by muellerw@pc7170 on Son Okt 8 16:04:40 CEST 2000