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Re: Possible Mac OS Bug with FIX. [message #44032 is a reply to message #44031]

Wed, 11 May 2005 10:12

K. Bowman
Messages: 330
Registered: May 2000

Senior Member

In article <MPG.1cebe581b001a48e9899fc@news.frii.com>,
David Fanning <davidf@dfanning.com> wrote:

> Folks,
>
> I have a report of a possible bug this morning with the Mac OS
> operating system. It seems that the FIX function, when used with
> the offset parameter does not produce reliable values.
>
> Here is an example:
>
> tmp=bytarr(20)
> tmp[15]=5
> print, fix(tmp[15]), fix(tmp,15)
> 5 1280
>
> Can anyone confirm that this is or is not a problem in
> IDL 6.1 on the Mac OS operating system?
>
> Thanks,
>
> David

I think perhaps you want fix(tmp, 14)?

IDL> tmp = bytarr(20)
IDL> tmp[15] = 5
IDL> print, fix(tmp[15])
5
IDL> print, fix(tmp, 14)
5

I think it is not a question of endianess, but of "which 2 bytes belong to the
2-byte integer".

Ken

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[Message index]

		Re: Possible Mac OS Bug with FIX. By: Dick Jackson on Wed, 11 May 2005 15:50
		Re: Possible Mac OS Bug with FIX. By: David Fanning on Wed, 11 May 2005 13:44
		Re: Possible Mac OS Bug with FIX. By: savoie on Wed, 11 May 2005 13:14
		Re: Possible Mac OS Bug with FIX. By: David Fanning on Wed, 11 May 2005 12:56
		Re: Possible Mac OS Bug with FIX. By: David Fanning on Wed, 11 May 2005 12:37
		Re: Possible Mac OS Bug with FIX. By: David Fanning on Wed, 11 May 2005 12:30
		Re: Possible Mac OS Bug with FIX. By: K. Bowman on Wed, 11 May 2005 11:58
		Re: Possible Mac OS Bug with FIX. By: K. Bowman on Wed, 11 May 2005 11:53
		Re: Possible Mac OS Bug with FIX. By: Foldy Lajos on Wed, 11 May 2005 11:45
		Re: Possible Mac OS Bug with FIX. By: K. Bowman on Wed, 11 May 2005 11:13
		Re: Possible Mac OS Bug with FIX. By: David Fanning on Wed, 11 May 2005 11:31
		Re: Possible Mac OS Bug with FIX. By: Foldy Lajos on Wed, 11 May 2005 11:10
		Re: Possible Mac OS Bug with FIX. By: David Fanning on Wed, 11 May 2005 10:55
		Re: Possible Mac OS Bug with FIX. By: K. Bowman on Wed, 11 May 2005 10:12
		Re: Possible Mac OS Bug with FIX. By: Foldy Lajos on Wed, 11 May 2005 10:04

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