### - u -

- uflow() : std::basic_streambuf< _CharT, _Traits > , __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >
- underflow() : std::basic_stringbuf< _CharT, _Traits, _Alloc > , std::basic_streambuf< _CharT, _Traits > , std::basic_filebuf< _CharT, _Traits > , __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >
- unget() : std::basic_istream< _CharT, _Traits >
- uniform_int() : std::uniform_int< _IntType >
- uniform_real() : std::uniform_real< _RealType >
- unique() : std::forward_list< _Tp, _Alloc > , std::list< _Tp, _Alloc >
- unsetf() : std::ios_base
- unshift() : std::__codecvt_abstract_base< _InternT, _ExternT, _StateT >
- upper_bound() : std::multiset< _Key, _Compare, _Alloc > , std::set< _Key, _Compare, _Alloc > , std::multiset< _Key, _Compare, _Alloc > , std::multimap< _Key, _Tp, _Compare, _Alloc > , std::map< _Key, _Tp, _Compare, _Alloc > , std::set< _Key, _Compare, _Alloc >