>>A follow-up question please. So far, my test shows that program(program(-1)-1) will give what I am looking for.
>>Since I write this value to a log file, I want to be sure that it is always a string, not a numeric value. Can you think of a case where program(program(-1)-1) will give a numeric value?
>
>Saw that you already got great responses ;-)
>Danger only rises when the levels subtracted are greater than actual stack depth, as *any* negative number as parameter will return numeric.
>In practice you are probably safe to chain 2 or even 3 previous levels into single log line unless you are in actual start code.
>Trying for more levels default approach should go to astackinfo with a guard, unless specific reason speaks against it.
>Of course you could always guard with
>program(max(0, program(-1)-wantedlevell)
>calls against weird situations, but JR hints at other solution perhaps easier to grok in 6 months.
>In this case speed freak in me does neither ;-)
>
>regards
>thomas
Thank you.
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