Thanks for quick response.
In my openion use constant; is a good solution for debug/info/error msgs. But if we are talking about tracing ...
it is like in log file ...
[<date_time>] TRACE: entering sub for ...
[<date_time>] TRACE: parameters passed ...
[<date_time>] TRACE: exiting sub for ...
as core module add attribute features during compilation only, there is less performance issue...less cluttering in your code. as compared to explicitly writing entry/exit for each module.
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