Re^3: Perl Analyzer?

Ideally, you're right: code like that should be refactored unless there's a good reason not to do so (like a requirement to maintain subroutine interfaces, as it was in the pencolor case I mentioned. The code was actually in Fortran-66, and I detest ENTRY statements).

It would, however, be quite difficult to have a program determine that two subs are doing the same thing, using different code, like one calculating factorials recursively and another doing so with a loop.

emc

Experience is a hard teacher because she gives the test first, the lesson afterwards.

Vernon Sanders Law

Comment on Re^3: Perl Analyzer?

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Re^4: Perl Analyzer? by adrianh (Chancellor) on Aug 17, 2006 at 07:06 UTC
It would, however, be quite difficult to have a program determine that two subs are doing the same thing, using different code, like one calculating factorials recursively and another doing so with a loop. So difficult as to be impossible in the general case - since it reduces to the halting problem.	[reply]