||([String name] [, model])
Writes a dump of the stack associated with thread
or the current thread if
is omitted, on standard error.
argument controls the output produced by
and should be
which are constants defined in
The default value results in an execution trace that includes line number
and source file information.
changes the output format and restricts the trace to function calls,
produces a full stack dump that duplicates the output generated by
This is a debugging routine that can occasionally help track down
problems in normal Yoix applications.
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