Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is an older version of Boost and was released in 2024. The current version is 1.90.0.

Function template operator<<

Function template operator<<

boost::log::operator<< — Stream output operator.

Synopsis

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


template<typename CharT, typename TraitsT, typename T, typename TagT> 
  std::basic_ostream< CharT, TraitsT > & 
  operator<<(std::basic_ostream< CharT, TraitsT > & strm, 
             value_ref< T, TagT > const & val);