Error when parsing '*'

[trelau]

In this code:

StreamBuffer& operator << (std::ostream& (*)(std::ostream&))
    {
      Flush(true);
      return *this;
    }

Gives this error:

cxxheaderparser.errors.CxxParseError: Not able to parse <str> on line 2 evaluating '*': unexpected '*', expected ',' or ')'