Reference
C Library
IOstream Library
Strings library
STL Containers
STL Algorithms
Miscellaneous
IOstream Library
manipulators
classes:
filebuf
fstream
ifstream
ios
iostream
ios_base
istream
istringstream
ofstream
ostream
ostringstream
streambuf
stringbuf
stringstream
objects:
cerr
cin
clog
cout
types:
fpos
streamoff
streampos
streamsize
filebuf
filebuf::filebuf
filebuf::~filebuf
member functions:
filebuf::close
filebuf::is_open
filebuf::open
virtual members:
filebuf::imbue
filebuf::overflow
filebuf::pbackfail
filebuf::seekoff
filebuf::seekpos
filebuf::setbuf
filebuf::showmanyc
filebuf::sync
filebuf::uflow
filebuf::underflow


filebuf::sync

virtual protected member function
int sync ( );

Synchronize file buffer

Synchronizes the internal character sequences with the file content.

This effectively means that if the internal output sequence (which in this class acts as a memory buffer for buffered streams) contains characters that have not yet been written to the file, these are now written by calling virtual member overflow.

The public member function pubsync of the parent class streambuf calls this virtual member function, which overrides the virtual member streambuf::sync.

Parameters

none

Return Value

In case of success, zero is returned.
Errors are expected to be signaled by any other value, like -1.

Basic template member declaration

( basic_filebuf<charT,traits> )
  
int sync ( );


See also

streambuf::pubsync Synchronize stream buffer (public member function)