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*trace-level*

Variable
Summary

The current depth of tracing.

Package

hcl

Initial Value

0

Description

*trace-level* is a special variable whose value is the current depth of tracing. The current value of *trace-level* is printed before the function name during the output from tracing.

Example
USER 8 > (defun fac (n) (if (<= n 1)
                         1
                      (* n (fac (1- n)))))
FAC 
USER 9 > (trace fac)
FAC 
USER 10 > (fac 3)
0 FAC > (3)  
  1 FAC > (2)  
   2 FAC > (1)   
   2 FAC < (1)  
  1 FAC < (2) 
0 FAC < (6) 
6 
Notes

*trace-level* is an extension to Common Lisp.

See also

trace


LispWorks User Guide and Reference Manual - 21 Dec 2011

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