std::basic_filebuf<CharT,Traits>::sync
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< cpp | io | basic filebuf
C++
Input/output library
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(C++23) | ||||
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(C++23) | ||||
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(C++20) | ||||
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(C++11) | ||||
(C++11) |
std::basic_filebuf
| Public member functions | ||||
(C++11) | ||||
(C++11) | ||||
(C++26) | ||||
| Protected member functions | ||||
basic_filebuf::sync | ||||
| Non-member functions | ||||
(C++11) |
| protected: virtual int sync() |
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If a put area exists (e.g. the file was opened for writing), calls overflow() to write all pending output to the file, then flushes the file as if by calling std::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 |
[edit] Parameters
(none)
[edit] Return value
0 in case of success, -1 in case of failure.
[edit] Notes
sync() or its equivalent is implicitly called for output streams by close(), seekoff(), and seekpos() and explicitly called by std::basic_streambuf::pubsync()
[edit] Example
| This section is incomplete Reason: no example |
[edit] See also
| invokes sync() (public member function of std::basic_streambuf<CharT,Traits>) [edit]
| |
| synchronizes an output stream with the actual file (function) [edit] |
