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sym_diff.hh
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25 
26 #ifndef MLN_SET_SYM_DIFF_HH
27 # define MLN_SET_SYM_DIFF_HH
28 
32 
33 # include <algorithm>
34 # include <iterator>
35 
36 # include <mln/core/site_set/p_set.hh>
37 # include <mln/convert/from_to.hh>
38 # include <mln/util/ord.hh>
39 
40 
41 
42 namespace mln
43 {
44 
45  template <typename P> class p_set;
46 
47 
48  namespace set
49  {
50 
55  template <typename Sl, typename Sr>
56  p_set<mln_site(Sl)>
57  sym_diff(const Site_Set<Sl>& lhs, const Site_Set<Sr>& rhs);
58 
59 
60 # ifndef MLN_INCLUDE_ONLY
61 
62  template <typename Sl, typename Sr>
63  inline
64  p_set<mln_site(Sl)>
65  sym_diff(const Site_Set<Sl>& lhs, const Site_Set<Sr>& rhs)
66  {
67  mln_trace("set::sym_diff");
68 
69  typedef mln_site(Sl) P;
70  mlc_converts_to(mln_psite(Sr), P)::check();
71  std::set< P, util::ord<P> > sl, sr, sd;
72  convert::from_to(lhs, sl);
73  convert::from_to(rhs, sr);
74  std::set_symmetric_difference(sl.begin(), sl.end(),
75  sr.begin(), sr.end(),
76  std::inserter(sd, sd.begin()),
77  util::ord<P>());
78  p_set<P> s;
79  convert::from_to(sd, s);
80 
81  return s;
82  }
83 
84 # endif // ! MLN_INCLUDE_ONLY
85 
86  } // end of namespace mln::set
87 
88 } // end of namespace mln
89 
90 
91 #endif // ! MLN_SET_SYM_DIFF_HH