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Function template operator<<

boost::log::operator<< — Log formatting operator.


// In header: <boost/log/utility/value_ref.hpp>

template<typename CharT, typename TraitsT, typename AllocatorT, typename T, 
         typename TagT> 
  basic_formatting_ostream< CharT, TraitsT, AllocatorT > & 
  operator<<(basic_formatting_ostream< CharT, TraitsT, AllocatorT > & strm, 
             value_ref< T, TagT > const & val);