













February 1984
%   Pu
e: Tracing routi

%   Needs  
itef.pl,
g.pl






%
%	Split the (now obsolete) module IOROUT into two: WRITEF and
%	TRACE (this
).
%

:- public
	error/3,
	tlim/1,
	ton/1,
	toff/1,
	toff/0,
	trace/2,
	t
/3.

:- mode
	error(+, +, +),
	tlim(?),
	ton(?),
	toff(?),
	toff,
	tr
+, +),
	trace(+, +, +).



			% Error message handler
			%  Print
(writef style) message and then performs
			%  t
















































































































































































































































































































































































































