ceph/src/boost/libs/range/include/boost/range/detail/combine_cxx11.hpp

   1 //  Copyright Neil Groves 2014. Use, modification and
   2 //  distribution is subject to the Boost Software License, Version
   3 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   4 //  http://www.boost.org/LICENSE_1_0.txt)
   5 //
   6 //
   7 // For more information, see http://www.boost.org/libs/range/
   8 //
   9 #ifndef BOOST_RANGE_DETAIL_COMBINE_CXX11_HPP
  10 #define BOOST_RANGE_DETAIL_COMBINE_CXX11_HPP
  11
  12 #include <boost/range/iterator_range_core.hpp>
  13 #include <boost/range/iterator.hpp>
  14 #include <boost/range/begin.hpp>
  15 #include <boost/range/end.hpp>
  16 #include <boost/iterator/zip_iterator.hpp>
  17
  18 #include <fstream>
  19
  20 namespace boost
  21 {
  22     namespace range
  23     {
  24
  25 template<typename... Ranges>
  26 auto combine(Ranges&&... rngs) ->
  27     combined_range<decltype(boost::make_tuple(boost::begin(rngs)...))>
  28 {
  29     return combined_range<decltype(boost::make_tuple(boost::begin(rngs)...))>(
  30                 boost::make_tuple(boost::begin(rngs)...),
  31                 boost::make_tuple(boost::end(rngs)...));
  32 }
  33
  34     } // namespace range
  35
  36 using range::combine;
  37
  38 } // namespace boost
  39
  40 #endif // include guard