Re: Date representation

On Thu, 11 Sep 2008 15:41:07 +0200, "Kurt Kallblad"
<kurt.kallblad@xxxxxxxx> wrote:

Looking at your example I guess that the amount of data is not
more than you easily can keep in memory and it is a quick job to
read the file. In cases like that I read the file twice. The
first reading is used to determine the needed array sizes. Then I
allocate the arrays, rewind the file and read in the data.


Hello all,

let me just use this post to thank all who answered. I found some very
useful information and ideas on how to proceed in your replies.

to Kurt Kallblad:

Yes, the amount of data is not very large. There are several
files, each one not over 2 Mb. Not a problem for today's standards.
I used your idea of reading the file twice, and it works fine.
Previously I just allocated some ridicously big array and it also
worked fine, but I guess this is more rational approach.

Some nostalgia which may be useful:

Below you will find a routine to convert the dates to JULDAG.

Thank you for the routine.

These are not the Julian day but my own day numbers. These
numbers start with 1 for 1901-01-01 and ends with 72684 for
2099-12-31, this to get rid of leap year problems.

works fine for me, by the time the routine is no longer valid,
date-wise, CERN LHC will do its thing, create a black hole, and the
problem will be gone, along with planet Earth :-)


The original
version was on punched cards but it is still in use in some
commercial programs. A small Swedish wordlist is attached to help
you to understand the variables.


By some weird coincidence I actually know some (very) little of your
language, having spend some time there (beautiful hiking trails,
especially in autumn :-) but thank you for the effort of translation.

--
Marin

Kurt
.

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