Here is a list of all documented class members with links to the class documentation for each member:

### - o -

- oct : ios_base
- open() : basic_fstream, basic_ofstream, basic_ifstream, basic_filebuf
- openmode : ios_base
- operator &=() : valarray, bitset, slice_array, mask_array, indirect_array, gslice_array
- operator *() : auto_ptr, ostreambuf_iterator, istreambuf_iterator, insert_iterator, front_insert_iterator, back_insert_iterator, reverse_iterator
- operator *=() : valarray, slice_array, mask_array, indirect_array, gslice_array
- operator streamoff() : fpos
- operator void *() : basic_ios
- operator!() : valarray
- operator!=() : fpos, locale
- operator%=() : valarray, slice_array, mask_array, indirect_array, gslice_array
- operator()() : subtractive_rng, locale
- operator+() : valarray, reverse_iterator, fpos
- operator++() : ostreambuf_iterator, istreambuf_iterator, insert_iterator, front_insert_iterator, back_insert_iterator, reverse_iterator
- operator+=() : valarray, reverse_iterator, slice_array, fpos, mask_array, indirect_array, gslice_array, basic_string
- operator-() : valarray, reverse_iterator, fpos
- operator--() : reverse_iterator
- operator-=() : valarray, reverse_iterator, slice_array, fpos, mask_array, indirect_array, gslice_array
- operator->() : auto_ptr, reverse_iterator
- operator/=() : valarray, slice_array, mask_array, indirect_array, gslice_array
- operator<<() : basic_ostream, bitset
- operator<<=() : valarray, bitset, slice_array, mask_array, indirect_array, gslice_array
- operator=() : valarray, auto_ptr, ostreambuf_iterator, ostream_iterator, vector, set, multiset, multimap, map, list, insert_iterator, front_insert_iterator, back_insert_iterator, deque, slice_array, mask_array, locale, indirect_array, gslice_array, gslice, basic_string
- operator==() : bitset, fpos, locale
- operator>>() : basic_istream
- operator>>=() : valarray, slice_array, mask_array, indirect_array, gslice_array
- operator[]() : valarray, bitset, vector, map, reverse_iterator, deque, basic_string
- operator^=() : valarray, slice_array, mask_array, indirect_array, gslice_array
- operator|=() : valarray, slice_array, mask_array, indirect_array, gslice_array
- operator~() : valarray, bitset
- ostream_iterator() : ostream_iterator
- ostreambuf_iterator() : ostreambuf_iterator
- out : __codecvt_abstract_base, ios_base
- overflow() : basic_streambuf, basic_stringbuf, basic_filebuf, stdio_sync_filebuf