Get the filebuf object associated with the stream.
  Returns the filebuf object associated with the stream.

Parameters.

none

 

Return Value.
  A pointer to the filebuf object associated with the stream.
  Notice that this pointer is never NULL, even if the buffer is not associated with any file. It is a pointer to the private filebuf object.

Example.

// open and close a file using buffer members
#include <fstream>
using namespace std;

int main () {
  char ch;
  fstream filestr;
  filebuf *pbuf;

  pbuf=filestr.rdbuf();
  
  pbuf->open ("test.txt", fstream::in | fstream::out);

  // >> i/o operations here <<

  pbuf->close();

  return 0;
}

Basic template member declaration ( basic_fstream<charT,traits> ):

basic_filebuf<charT,traits> * rdbuf () const;

See also.
  ios::rdbuf
  filebuf class, fstream class