# SdFat: Class Members - Functions

### - o -

- obufstream() : obufstream
- ofstream() : ofstream
- open() : ExFatFile , ExFatVolume , FatFile , FatVolume , FsBaseFile , fstream , FsVolume , ifstream , ofstream
- openNext() : ExFatFile , FatFile , FsBaseFile
- openNextFile() : ExFile , File32 , FsFile
- openRoot() : ExFatFile , FatFile
- operator bool() : ExFatFile , FatFile , FsBaseFile , ios , MinimumSerial
- operator const void *() : ios
- operator!() : ios
- operator<<() : ostream
- operator=() : FsBaseFile
- operator>>() : istream
- options() : SdioConfig