Negative numbers

[Pascal Gouery - UHB - 99 33 52 52]

...
>From: alobo at ija.csic.es (Agustin Lobo)
>Subject:grass negative numbers?
>Date: 9 Oct 95 18:10:22 GMT
>Message-ID:<120*alobo at ija.csic.es>
 ...
>How is grass writing negative numbers? I've made a C program
>to import uncompressed binary cell raster files and I get
>wrong results with negatives, even if I read them as
>long integers. I get numbers like :
 ...
>Agus

I haven't my documentation here in my office - I forgot it at home -,
but as far as i remember, Grass doesn't use "two's complement" as many
computers/softwares. It just uses the first bit as a flag, and the others
bits codes the number as a positive number. For more info, e-mail me or post
another message in the list, i'll search info and ref in the documentation.


                        Hope this helps you,


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