in reply to Faster debugging

It would be quicker, easier, and more useful to refactor your program into functions/modules that can be tested separately. Then, you can create a test suite that will exercise each unit in isolation, effectively doing what you're asking.

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We are the carpenters and bricklayers of the Information Age.

The idea is a little like C++ templates, except not quite so brain-meltingly complicated. -- TheDamian, Exegesis 6

... strings and arrays will suffice. As they are easily available as native data types in any sane language, ... - blokhead, speaking on evolutionary algorithms

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.

In Section Seekers of Perl Wisdom