Controls tracing.
hcl
nil
The variable *disable-trace* controls tracing without affecting the tracing state. If it is set to t then tracing is switched off, but this does not call untrace. When the value of *disable-trace* is restored to nil, tracing continues as before.
*disable-trace* is an extension to Common Lisp.
LispWorks® User Guide and Reference Manual - 18 Feb 2025 15:32:21