condition state Flags and associated functions usable by any of the stream classes that indicate whether a given stream is usable.
file mode Flags defined by the
fstream classes that are specified when opening a file and control how a file can be used.
file stream Stream object that reads or writes a named file. In addition to the normal
iostream operations, file streams also define
close members. The
open member takes a
string or a C-style character string that names the file to open and an optional open mode argument. The
close member closes the file to which the stream is attached. It must be called before another file can be
fstream File stream that reads and writes to the same file. By default
fstreams are ...