| I/O manipulators | ||||
| Print functions(C++23) | ||||
| C-style I/O | ||||
| Buffers | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++20) | ||||
| Streams | ||||
| Abstractions | ||||
| File I/O | ||||
| String I/O | ||||
| Array I/O | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
| Synchronized Output | ||||
(C++20) | ||||
| Types | ||||
| Error category interface | ||||
(C++11) | ||||
(C++11) |
| Public member functions | ||||
(C++11) | ||||
(C++11) | ||||
(C++26) | ||||
| Protected member functions | ||||
basic_filebuf::sync | ||||
| Non-member functions | ||||
(C++11) |
protected: virtualint sync() | ||
If a put area exists (e.g. the file was opened for writing), callsoverflow() to write all pending output to the file, then flushes the file as if by callingstd::fflush.
If a get area exists (e.g. the file was opened for reading), the effect is implementation-defined. Typical implementation may empty out the get area and move the current file position back by the corresponding number of bytes.
Contents |
(none)
0 in case of success,-1 in case of failure.
sync() or its equivalent is implicitly called for output streams byclose(),seekoff(), andseekpos() and explicitly called bystd::basic_streambuf::pubsync()
| This section is incomplete Reason: no example |
| invokessync() (public member function of std::basic_streambuf<CharT,Traits>)[edit] | |
| synchronizes an output stream with the actual file (function)[edit] |
