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Function template operator<<

boost::log::operator<< — The operator attaches an attribute value to the log record.


// In header: <boost/log/utility/manipulators/add_value.hpp>

template<typename CharT, typename RefT> 
  basic_record_ostream< CharT > & 
  operator<<(basic_record_ostream< CharT > & strm, 
             add_value_manip< RefT > const & manip);