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Function template matches



// In header: <boost/log/expressions/predicates/matches.hpp>

template<typename T, typename FallbackPolicyT, typename TagT, 
         template< typename > class ActorT, typename RegexT> 
  unspecified matches(attribute_actor< T, FallbackPolicyT, TagT, ActorT > const & attr, 
                      RegexT const & rex);


The function generates a terminal node in a template expression. The node will check if the attribute value, which is assumed to be a string, matches the specified regular expression.