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3rdparty/boost_1_81_0/boost/range/counting_range.hpp 2.16 KB
0b6a182c   Hu Chunming   添加无鉴权注册和注销
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  //  Copyright Neil Groves 2010. Use, modification and
  //  distribution is subject to the Boost Software License, Version
  //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
  //  http://www.boost.org/LICENSE_1_0.txt)
  //
  //
  // For more information, see http://www.boost.org/libs/range/
  //
  #ifndef BOOST_RANGE_COUNTING_RANGE_HPP_INCLUDED
  #define BOOST_RANGE_COUNTING_RANGE_HPP_INCLUDED
  
  #include <boost/config.hpp>
  #if BOOST_MSVC >= 1400
  #pragma warning(push)
  #pragma warning(disable : 4244)
  #endif
  
  #include <boost/range/iterator_range_core.hpp>
  #include <boost/range/value_type.hpp>
  #include <boost/range/iterator.hpp>
  #include <boost/iterator/counting_iterator.hpp>
  
  namespace boost
  {
      template<class Value>
      inline iterator_range<counting_iterator<Value> >
      counting_range(Value first, Value last)
      {
          typedef counting_iterator<Value> counting_iterator_t;
          typedef iterator_range<counting_iterator_t> result_t;
          return result_t(counting_iterator_t(first),
                          counting_iterator_t(last));
      }
  
      template<class Range>
      inline iterator_range<
          counting_iterator<
              BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type
          >
      >
      counting_range(const Range& rng)
      {
          typedef counting_iterator<
              BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type
          > counting_iterator_t;
  
          typedef iterator_range<counting_iterator_t> result_t;
  
          return result_t(counting_iterator_t(boost::begin(rng)),
                          counting_iterator_t(boost::end(rng)));
      }
  
      template<class Range>
      inline iterator_range<
          counting_iterator<
              BOOST_DEDUCED_TYPENAME range_iterator<Range>::type
          >
      >
      counting_range(Range& rng)
      {
          typedef counting_iterator<
              BOOST_DEDUCED_TYPENAME range_iterator<Range>::type
          > counting_iterator_t;
  
          typedef iterator_range<counting_iterator_t> result_t;
  
          return result_t(counting_iterator_t(boost::begin(rng)),
                          counting_iterator_t(boost::end(rng)));
      }
  } // namespace boost
  
  #if BOOST_MSVC >= 1400
  #pragma warning(pop)
  #endif
  
  #endif // include guard