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Re: Reading Binary [message #49252 is a reply to message #4812]

Wed, 12 July 2006 06:30

Peter Clinch
Messages: 98
Registered: April 1996

Member

Dirk1106@googlemail.com wrote:
> He reads it with C, but I want to work on it with IDL.
> Now I have the C-Code and he always reads 12 or 13 bits.

How does he do that in C?

It's been a while since I wrote any C and I'm more of a sysadmin these
days so I'm wary of talking Rubbish here, but I've written a fair bit in
my time and I can't recall anything in the stdio library that reads
anything less than a single byte at a time.

Furthermore, a [unsigned] char is (or was, IIRC) a single byte and the
smallest data type available in any flavour of C I've worked with, so
even if you /can/ read 12 or 13 bits you'll have to *put* it in a short
int at the very least. Although C has fairly comprehensive bitwaise
operation support at the language level, I've never seen it read or
store anything other than whole bytes.

Can you post the C fragment where he's reading 12/13 bits please?

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net p.j.clinch@dundee.ac.uk http://www.dundee.ac.uk/~pjclinch/

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[Message index]

		Reading binary data (written using XDR) into IDL?? By: khan on Wed, 09 August 1995 00:00
		Re: Reading Binary By: Peter Clinch on Wed, 12 July 2006 08:28
		Re: Reading Binary By: greg michael on Wed, 12 July 2006 07:25
		Re: Reading Binary By: Paul Van Delst[1] on Wed, 12 July 2006 07:21
		Re: Reading Binary By: Dirk1106@googlemail.c on Wed, 12 July 2006 07:13
		Re: Reading Binary By: Peter Clinch on Wed, 12 July 2006 06:30
		Re: Reading Binary By: Dirk1106@googlemail.c on Wed, 12 July 2006 06:01
		Re: Reading Binary By: greg michael on Wed, 12 July 2006 04:12
		Re: Reading Binary By: Peter Clinch on Wed, 12 July 2006 02:14
		Re: Reading Binary By: Dirk1106@googlemail.c on Wed, 12 July 2006 01:39
		Re: Reading Binary By: greg michael on Tue, 11 July 2006 05:43

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