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Re: unsigned integers [message #12337 is a reply to message #8149]

Mon, 20 July 1998 00:00

David Foster
Messages: 341
Registered: January 1996

Senior Member

David Fanning wrote:
>
> Richard G. French (rfrench@wellesley.edu) writes:
>
>> Does anyone out there know why the unsigned integer type has
>> never been implemented in IDL? Has anyone written a small
>> package of routines to deal with them painlessly? I've always
>> handled on a case-by-case basis by reading the signed shorts into IDL
>> and then converting them to LONG, using the MSB of the short to
>> turn the sign bit into the appropriate power of two. Don't all C
>> compilers have unsigned shorts as a standard type? Is there anyone
>> else out there who would like to see unsigned integers elevated to
>> a legal type?
>
> According to my usually reliable sources, an unsigned
> integer data type is under very strong consideration at
> RSI. It is especially needed to work with much of the data
> coming from EOS missions. I wouldn't be surprised to see it
> in a future upgrade. Customer requests, of course, always
> make a difference.
>

In the meantme, check out an article "Working with unsigned integers"
on David Fanning's web site: www.dfanning.com .

Dave
--

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2240
La Jolla, CA 92037
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~

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[Message index]

		Unsigned Integers - How? By: Peter Berdeklis on Wed, 05 February 1997 00:00
		Re: Unsigned Integers - How? By: sterner on Tue, 11 February 1997 00:00
		Re: unsigned integers By: David Foster on Mon, 20 July 1998 00:00
		Re: unsigned integers By: davidf on Fri, 17 July 1998 00:00

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