The Boston Diaries

The ongoing saga of a programmer who doesn't live in Boston, nor does he even like Boston, but yet named his weblog/journal “The Boston Diaries.”

Go figure.

Sunday, January 15, 2006

Squishing bugs

I've been simplifying the real-time LaBrea data processing program. One simplification: don't try to grow the arrays. If I'm trying to grow the arrays and I'm going to stop at some point anyway, why not just allocate as much as I'll ever use when the program starts? It gives you a definite upper bound (and one that can be set from the command line) and boy, does it simplify the code.

I also got the binary search routine working correctly after a few hours.

And I had to remind myself just how C's qsort() works, and make sure I know that (in my program at least) I'm getting pointers to pointers to structures, and not just pointers to structures (when I fixed that, I started getting correctly sorted arrays).

The only outstanding bug I have right now deals with adding a record after the array has been purged of old records. The problem is that I'm using an index from before the purge. I should be able to get this running on the LaBrea tarpit system in the next day or two.

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