Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!ogicse!cvedc!gssc!timr
From: timr@gssc.UUCP (Tim Roberts)
Newsgroups: comp.lang.c
Subject: Re: need "yy-ddd-hh:mm:ss ==> (time_t) clock" converter
Message-ID: <6586@gssc.UUCP>
Date: 11 Feb 91 17:56:02 GMT
References: <TSINGLE.91Jan18120847@sunland.gsfc.nasa.gov> <368@bria>
Distribution: comp
Organization: Graphic Software Systems, Inc. Beaverton, Or.
Lines: 16

> int mdays[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

I have seen this construct in date solutions several times over the past
two weeks.  In my experience, it is almost always better to use an array of
the _accumulated_ days through the end of the month, rather than the actual
days in the month.  This generally lets one eliminate at least one loop.

For example:

int mdays[12] = { 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 };

-- 
timr@gssc.gss.com	Tim N Roberts, CCP	Graphic Software Systems
						Beaverton, OR

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