lang • eof

Eof

Result = Eof ( [ Stream AS Stream ] ) AS Boolean

Returns TRUE if we are at the end of the stream.

If Stream is not specified, then the standard input is used.

See LINE INPUT for an example.

The behaviour of Eof() depends on the stream blocking mode:

  • If the stream is in non-blocking mode, then Eof() returns if at least one byte can be read from the stream, just when Eof() is called.

  • If the stream is in blocking mode, then Eof() will first wait for data to come before checking if something can be read.

Consequently, for non-file streams (pipes, processes, sockets...) in blocking mode, end of file will be reached when the other end of the stream is closed.

See also