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set/get.hh
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25 
26 #ifndef MLN_SET_GET_HH
27 # define MLN_SET_GET_HH
28 
36 # include <mln/core/concept/site_set.hh>
37 
38 
39 
40 namespace mln
41 {
42 
43  namespace set
44  {
45 
47  template <typename S>
48  mln_site(S)
49  get(const Site_Set<S>& s, size_t index);
50 
51 
52 # ifndef MLN_INCLUDE_ONLY
53 
54  template <typename S>
55  mln_site(S)
56  get(const Site_Set<S>& s_, size_t index)
57  {
58  mln_trace("set::get");
59  const S& s = exact(s_);
60 
61  mln_precondition(s.is_valid());
62  mln_precondition(s.nsites() > index);
63 
64  mln_piter(S) p(s);
65  for_all(p)
66  if (index == 0)
67  break;
68  else
69  --index;
70 
71  return p;
72  }
73 
74 # endif // ! MLN_INCLUDE_ONLY
75 
76  } // end of namespace mln::set
77 
78 } // end of namespace mln
79 
80 
81 #endif // ! MLN_SET_GET_HH