Well...for that, you need a C on-the-fly interpreter. While they do exist, you certainly don't need it for your project (and I won't link to one because of that). You say that you used a sub in another file and eval'ed it? I imagine that you open it, read it, and eval it. While this may work, it is not efficient and wholly unnecessary since Perl has built-in functionality to do exactly this- namely require, import, use, or some combination thereof. If you had done that, your solution would be now far more obvious. All you would have to do is compile your converted Perl to C function into an object file (or even a shared object! whoa!) and then link to it from your main script. While they may be interesting, C interpreters are at best sluggish and easily avoidable. Good luck!

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