(trace)

(trans) →

(trace function . . .)

Turn on debug mode.

Used for debugging, this function sets a trace debug aid for the specified function. Each time the function is run, the trace appears and prints the result of the function.

NOTE Use untrace to turn off the trace debugging aid.

Example

Code	Returns
(trace fname)	FNAME Sets trace aid for FNAME function.

Tell me about...

(untrace function ...)

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language