f1	input.cpp	/^std::string & f1() {}$/;"	f	typeref:typename:std::string &
f2	input.cpp	/^const std::string & f2() {}$/;"	f	typeref:typename:const std::string &
f3	input.cpp	/^std::string const & f3() {}$/;"	f	typeref:typename:std::string const &
