/**
 *  \file DifferenceSingletonContainer.h
 *  \brief Return all singletons from a SingletonContainer
 *
 *  This file is generated by a script (core/tools/make-container).
 *  Do not edit directly.
 *
 *  Copyright 2007-2010 IMP Inventors. All rights reserved.
 */

#ifndef IMPCORE_DIFFERENCE_SINGLETON_CONTAINER_H
#define IMPCORE_DIFFERENCE_SINGLETON_CONTAINER_H

#include "../core_config.h"
#include <IMP/internal/container_helpers.h>
#include <IMP/SingletonContainer.h>
#include <IMP/SingletonModifier.h>

IMPCORE_BEGIN_INTERNAL_NAMESPACE

/** \brief Return all unordered singletons of particles taken from
    the SingletonContainer


    It does not do any change tracking. All particles in b must be in a.

    Returns the set b-a.
 */
class IMPCOREEXPORT DifferenceSingletonContainer : public SingletonContainer
{
  IMP::internal::OwnerPointer<SingletonContainer> a_, b_;
  IMP_CONTAINER_DEPENDENCIES(DifferenceSingletonContainer,
                             { ret.resize(2);
                               ret[0]=back_->a_;
                               ret[1]=back_->b_;
                             });
  template <class F>
    void apply_to_contents(F f) const {
    unsigned int szc=get_number_of_particles();
    for (unsigned int i=0; i< szc; ++i) {
      Particle *a= get_particle(i);
      f(a);
    }
  }
  template <class F>
    double accumulate_over_contents(F f) const {
    double ret=0;
    unsigned int szc=get_number_of_particles();
    for (unsigned int i=0; i< szc; ++i) {
      Particle *a= get_particle(i);
      ret+=f(a);
    }
    return ret;
  }
 public:
  DifferenceSingletonContainer(SingletonContainer *a, SingletonContainer *b);

#ifndef IMP_DOXYGEN
  bool get_is_up_to_date() const {
    return a_->get_is_up_to_date() && b_->get_is_up_to_date();
  }
#endif

  IMP_SINGLETON_CONTAINER(DifferenceSingletonContainer);
};


IMPCORE_END_INTERNAL_NAMESPACE

#endif  /* IMPCORE_DIFFERENCE_SINGLETON_CONTAINER_H */