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──The Microsoft iostream Classes────────────────────────────────────────────
 
  Description
 
  The fstream class is an iostream derivative specialized for combined
  disk file input and output. Its constructors automatically create and
  attach a filebuf buffer object.
 
  The filebuf class documentation describes the get and put areas and
  their associated pointers. Although the filebuf object's get and put
  pointers are theoretically independent, the get area and the put area
  cannot both be active at the same time. Therefore, when the stream's
  mode changes from input to output, the get area is emptied and the put
  area is reinitialized. When the mode changes from output to input, the
  put area is flushed and the get area is reinitialized.
 
  #include <fstream.h>
 
  See Also
 
  ◄ifstream►, ◄ofstream►, ◄strstream►, ◄stdiostream►, ◄filebuf►
 
  Public Members
 
  Construction/Destruction
 
  ◄fstream►   Constructs an fstream object.
 
  ◄~fstream►   Destroys an fstream object.
 
  Operations
 
  ◄open►      Opens a file and attaches it to the filebuf object and thus
              to the stream.
 
  ◄close►     Flushes any waiting output and closes the stream's file.
 
  ◄setbuf►    Attaches the specified reserve area to the stream's filebuf
              object.
 
  ◄setmode►   Sets the stream's mode to binary or text.
 
  ◄attach►    Attaches the stream (through the filebuf object) to an open
              file.
 
  Status/Information
 
  ◄rdbuf►     Gets the stream's filebuf object.
 
  ◄fd►        Returns the file descriptor associated with the stream.
 
  ◄is_open►   Tests whether the stream's file is open.
 
 
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