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filebuf::close

Usage

   #include <fstream.hpp>
   filebuf *filebuf::close();

Description

   Any output held in the put area is flushed to the file. The file is then
   closed, and the filebuf marked as unattached (file descriptor == EOF). If
   an error occurs, the error state will be set, and close will return zero.
   Otherwise it returns a pointer to the cfilebuf object.

Example 

   filebuf fb;

   int fd = open(...);
   fb.attach(fd);
   ...;

   if (!fb.close())
       // error

   fd = open(...);
   fb.attach(fd);

Return Value

   Pointer to the filebuf object for which it was called, or zero on error.