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Whoever wrote this code didn't have readability in mind, so some of this is guesswork based on the few clues left by the person who wrote it.
An array of size 13 would be indexed 0 through to 12. Being that there are 12 months in a year, I'm guessing the idea is that he/she wanted to map months to their usual numerical values, eg, Jan = 1, Feb = 2, Mar = 3, etc. instead of starting out with Jan = 0, Feb = 1.
The code uses an awful lot of "magic" numbers littered around without any clear indication as to what they mean, and the variable names are equally as unhelpful. Its not clear at all why the array starts out populated with {0,3,6,7,3,5,1,3,6,2,4,7,2}; . If I were to take a guess, it would be that these numbers somehow relate to the first day of each month (with the zero'th month being invalid), but beyond that, the code is too cryptic to tell.
In all seriousness, If someone were to pass this across my desk at work, and tell me to fix it, extend it, or anything else, the first key I'd press would be 'delete', and start over again, since my time would be better spent writing it from scratch than spending 3 hours understanding it.
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31 Jan, 2008 - 02:42 AM
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