ceph/src/boost/libs/range/include/boost/range/algorithm_ext/for_each.hpp

   1 // Boost.Range library
   2 //
   3 //  Copyright Neil Groves 2009. Use, modification and
   4 //  distribution is subject to the Boost Software License, Version
   5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 // For more information, see http://www.boost.org/libs/range/
   9 //
  10 #ifndef BOOST_RANGE_ALGORITHM_EXT_FOR_EACH_HPP_INCLUDED
  11 #define BOOST_RANGE_ALGORITHM_EXT_FOR_EACH_HPP_INCLUDED
  12
  13 #include <boost/range/config.hpp>
  14 #include <boost/range/concepts.hpp>
  15 #include <boost/range/difference_type.hpp>
  16 #include <boost/range/begin.hpp>
  17 #include <boost/range/end.hpp>
  18 #include <boost/assert.hpp>
  19
  20 namespace boost
  21 {
  22     namespace range_detail
  23     {
  24         template<class InputIterator1, class InputIterator2, class Fn2>
  25         inline Fn2 for_each_impl(InputIterator1 first1, InputIterator1 last1,
  26                                  InputIterator2 first2, InputIterator2 last2,
  27                                  Fn2 fn)
  28         {
  29             for (; first1 != last1 && first2 != last2; ++first1, ++first2)
  30             {
  31                 fn(*first1, *first2);
  32             }
  33             return fn;
  34         }
  35     }
  36
  37     namespace range
  38     {
  39         template<class SinglePassRange1, class SinglePassRange2, class Fn2>
  40         inline Fn2 for_each(const SinglePassRange1& rng1, const SinglePassRange2& rng2, Fn2 fn)
  41         {
  42             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
  43             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
  44
  45             return ::boost::range_detail::for_each_impl(
  46                 ::boost::begin(rng1), ::boost::end(rng1),
  47                 ::boost::begin(rng2), ::boost::end(rng2), fn);
  48         }
  49
  50         template<class SinglePassRange1, class SinglePassRange2, class Fn2>
  51         inline Fn2 for_each(const SinglePassRange1& rng1, SinglePassRange2& rng2, Fn2 fn)
  52         {
  53             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
  54             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> ));
  55
  56             return ::boost::range_detail::for_each_impl(
  57                 ::boost::begin(rng1), ::boost::end(rng1),
  58                 ::boost::begin(rng2), ::boost::end(rng2), fn);
  59         }
  60
  61         template<class SinglePassRange1, class SinglePassRange2, class Fn2>
  62         inline Fn2 for_each(SinglePassRange1& rng1, const SinglePassRange2& rng2, Fn2 fn)
  63         {
  64             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
  65             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
  66
  67             return ::boost::range_detail::for_each_impl(
  68                 ::boost::begin(rng1), ::boost::end(rng1),
  69                 ::boost::begin(rng2), ::boost::end(rng2), fn);
  70         }
  71
  72         template<class SinglePassRange1, class SinglePassRange2, class Fn2>
  73         inline Fn2 for_each(SinglePassRange1& rng1, SinglePassRange2& rng2, Fn2 fn)
  74         {
  75             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
  76             BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> ));
  77
  78             return ::boost::range_detail::for_each_impl(
  79                 ::boost::begin(rng1), ::boost::end(rng1),
  80                 ::boost::begin(rng2), ::boost::end(rng2), fn);
  81         }
  82     } // namespace range
  83     using range::for_each;
  84 } // namespace boost
  85
  86 #endif // include guard