std::_Placeholder< _Num >(3) Library Functions Manual std::_Placeholder< _Num >(3)NAMEstd::_Placeholder< _Num > -SYNOPSISDetailed Description template<int _Num>struct std::_Placeholder< _Num > The type of placeholder objects defined by libstdc++. Definition at line 989 of file functional. Author Generated automatically by Doxygen for libstdc++ from the source code. libstdc++ Tue Jun 10 2014 std::_Placeholder< _Num >(3)