A particularly cleaver programmer can use PPI to map the code layout and GraphViz to create a image linking the code together.

Note: In this instance, I am not the clever programmer. A co-worker of mine did this for a C++ application and was able to delete 75% of the code the had in production (about 300,000 lines).

However, this is something you do need to be careful about otherwise you will be cursing yourself whenever something bad happens.

In reply to Re: Clean perl code (unused functions) by Herkum
in thread Clean perl code (unused functions) by icanwin

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