purge.h

c++编程思想2TICPP-2nd-ed-Vol-two.zip

//: :purge.h
// From "Thinking in C++, Volume 2", by Bruce Eckel & Chuck Allison.
// (c) 1995-2004 MindView, Inc. All Rights Reserved.
// See source code use permissions stated in the file 'License.txt',
// distributed with the code package available at www.MindView.net.
// Delete pointers in an STL sequence container.
#ifndef PURGE_H
#define PURGE_H
#include <algorithm>

template<class Seq> void purge(Seq& c) {
  typename Seq::iterator i;
  for(i = c.begin(); i != c.end(); ++i) {
    delete *i;
    *i = 0;
  }
}

// Iterator version:
template<class InpIt> void purge(InpIt begin, InpIt end) {
  while(begin != end) {
    delete *begin;
    *begin = 0;
    ++begin;
  }
}
#endif // PURGE_H ///:~