Point Cloud Library (PCL)  1.12.1-dev
for_each_type.h
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39 
40 #pragma once
41 
42 #ifdef __GNUC__
43 #pragma GCC system_header
44 #endif
45 
46 #include <boost/mpl/is_sequence.hpp>
47 #include <boost/mpl/begin_end.hpp>
48 #include <boost/mpl/next_prior.hpp>
49 #include <boost/mpl/deref.hpp>
50 #include <boost/mpl/assert.hpp>
51 #include <boost/mpl/remove_if.hpp>
52 #include <boost/mpl/contains.hpp>
53 #include <boost/mpl/not.hpp>
54 #include <boost/mpl/aux_/unwrap.hpp>
55 
56 #include <type_traits>
57 
58 namespace pcl
59 {
60  //////////////////////////////////////////////////////////////////////////////////////////////
61  template <bool done = true>
63  {
64  template<typename Iterator, typename LastIterator, typename F>
65  static void execute (F) {}
66  };
67 
68  //////////////////////////////////////////////////////////////////////////////////////////////
69  template <>
70  struct for_each_type_impl<false>
71  {
72  template<typename Iterator, typename LastIterator, typename F>
73  static void execute (F f)
74  {
75  using arg = typename boost::mpl::deref<Iterator>::type;
76 
77 #if (defined _WIN32 && defined _MSC_VER && !defined(__clang__))
78  boost::mpl::aux::unwrap (f, 0).operator()<arg> ();
79 #else
80  boost::mpl::aux::unwrap (f, 0).template operator()<arg> ();
81 #endif
82 
83  using iter = typename boost::mpl::next<Iterator>::type;
85  ::template execute<iter, LastIterator, F> (f);
86  }
87  };
88 
89  //////////////////////////////////////////////////////////////////////////////////////////////
90  template<typename Sequence, typename F> inline void
92  {
93  BOOST_MPL_ASSERT (( boost::mpl::is_sequence<Sequence> ));
94  using first = typename boost::mpl::begin<Sequence>::type;
95  using last = typename boost::mpl::end<Sequence>::type;
96  for_each_type_impl<std::is_same<first, last>::value>::template execute<first, last, F> (f);
97  }
98 
99  //////////////////////////////////////////////////////////////////////////////////////////////
100  template <typename Sequence1, typename Sequence2>
101  struct intersect
102  {
103  using type = typename boost::mpl::remove_if<Sequence1, boost::mpl::not_<boost::mpl::contains<Sequence2, boost::mpl::_1> > >::type;
104  };
105 }
void for_each_type(F f)
Definition: for_each_type.h:91
static void execute(F)
Definition: for_each_type.h:65
typename boost::mpl::remove_if< Sequence1, boost::mpl::not_< boost::mpl::contains< Sequence2, boost::mpl::_1 > > >::type type