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      std::match_results<BidirIt,Alloc>::empty

      From cppreference.com
      <cpp‎ |regex‎ |match results
       
       
       
      Regular expressions library
      Classes
      (C++11)
      Algorithms
      Iterators
      Exceptions
      Traits
      Constants
      (C++11)
      Regex Grammar
       
       
      bool empty()const;
      (since C++11)

      Checks whether the match was successful.

      Contents

      [edit]Parameters

      (none)

      [edit]Return value

      true if*this represents the result of a failed match,false otherwise, i.e.size()==0.

      [edit]Exceptions

      May throw implementation-defined exceptions.

      [edit]Complexity

      Constant.

      [edit]See also

      returns the number of matches in a fully-established result state
      (public member function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/regex/match_results/empty&oldid=173029"

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