set_utils.hh

Go to the documentation of this file.

/*
    @@@@@@@@  @@           @@@@@@   @@@@@@@@ @@
   /@@/////  /@@          @@////@@ @@////// /@@
   /@@       /@@  @@@@@  @@    // /@@       /@@
   /@@@@@@@  /@@ @@///@@/@@       /@@@@@@@@@/@@
   /@@////   /@@/@@@@@@@/@@       ////////@@/@@
   /@@       /@@/@@//// //@@    @@       /@@/@@
   /@@       @@@//@@@@@@ //@@@@@@  @@@@@@@@ /@@
   //       ///  //////   //////  ////////  //

   Copyright (c) 2016, Triad National Security, LLC
   All rights reserved.
                                                                              */
#pragma once

#include <algorithm>
#include <set>

namespace flecsi {
namespace util {

template<class T>
inline std::set<T>
set_intersection(const std::set<T> & s1, const std::set<T> & s2) {
  std::set<T> intersection;

  std::set_intersection(s1.begin(),
    s1.end(),
    s2.begin(),
    s2.end(),
    std::inserter(intersection, intersection.begin()));

  return intersection;
} // set_intersection

template<class T>
inline std::set<T>
set_union(const std::set<T> & s1, const std::set<T> & s2) {
  std::set<T> sunion;

  std::set_union(s1.begin(),
    s1.end(),
    s2.begin(),
    s2.end(),
    std::inserter(sunion, sunion.begin()));

  return sunion;
} // set_union

template<class T>
inline std::set<T>
set_difference(const std::set<T> & s1, const std::set<T> & s2) {
  std::set<T> difference;

  std::set_difference(s1.begin(),
    s1.end(),
    s2.begin(),
    s2.end(),
    std::inserter(difference, difference.begin()));

  return difference;
} // set_difference

} // namespace util
} // namespace flecsi