flush_output/0/1

flushes any buffered information to an outputstream.

>H3>flush_output
flush_output(+Stream)

flush_output flushes any buffered information to the current outputstream, while flush_output(Stream) flushes any buffered information to the outputstream Stream.

Arguments 

Stream                 output stream

Examples

loop :-
	repeat,
		write(user_output, '?- '), flush_output(user_output),
		read(user_input, Term),
	( Term == end_of_file ; call(Term), fail ),
	!.

Standard

These predicates are part of the ISO-Prolog Standard.

See also

at_end_of_stream/0/1, close/1/2, current_error/1, current_input/1, current_output/1, open/3/4, set_error/1, set_input/1, set_output/1.

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