filebuf::attach

filebuf* attach( filedesc fd );

Attaches this filebuf object to the open file specified by fd.

Return Value

The function returns NULL when the stream is already attached to a file; otherwise it returns the address of the filebuf object.

Parameter

fd

A file descriptor as returned by a call to the run-time function _open or _sopen. filedesc is a typedef equivalent to int.

filebuf OverviewStream Buffer Classes