fstream::open

Syntax

void open( const char* szName, int nMode, int nProt = filebuf::openprot );

Parameters

szName

The name of the file to be opened during construction.

nMode

An integer containing mode bits defined as ios enumerators that can be combined with the OR (|) operator. See the fstream constructor for a list of the enumerators. The ios::out mode is implied.

nProt

The file protection specification; defaults to the static integer filebuf::openprot. See the fstream constructor for a list of the other allowed values.

Remarks

Opens a disk file and attaches it to the stream's filebuf object. If the filebuf object is already attached to an open file, or if a filebuf call fails, the ios::failbit is set. If the file is not found, then the ios::failbit is set only if the ios::nocreate mode was used.

See Also

filebuf::open, fstream::fstream, fstream::close, fstream::is_open