 st8b7c:f320:99b9:690f:4595:cd17:293a:c069basic_filebuf<CharT,Traits>8b7c:f320:99b9:690f:4595:cd17:293a:c069sync    protected:
virtual int sync()
       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 st8b7c:f320:99b9:690f:4595:cd17:293a:c069fflush.
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.
 Parameters (none).
 Return value ​0​ in case of success, -1 in case of failure.
 Notes sync() or its equivalent is implicitly called for output streams by close(), seekoff(), and seekpos() and explicitly called by st8b7c:f320:99b9:690f:4595:cd17:293a:c069basic_streambu8b7c:f320:99b9:690f:4595:cd17:293a:c069pubsync().
 Example  See also     pubsync   invokes sync()  (public member function of st8b7c:f320:99b9:690f:4595:cd17:293a:c069basic_streambuf<CharT,Traits>) 
    fflush   synchronizes an output stream with the actual file  (function) 
  

    
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