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Re: End of Array - like - End Of File [message #26283 is a reply to message #25952]

Mon, 20 August 2001 00:46

weitkamp
Messages: 33
Registered: October 1998

Member

Reimar's suggestion of using the COUNT keyword to FINDFILE is indeed
*much* better than using N_ELEMENTS, because the latter will result in
an error when the file list is empty (unless you use an additional
line to catch that situation). The reason is that when FINDFILE finds
no matches, its return value is a scalar null string, and N_ELEMENTS()
of that is one (not zero).

Reimar Bauer <r.bauer@fz-juelich.de> wrote in message news:<3B7FF5BE.526BE6@fz-juelich.de>...
> "Emmler, Oliver" wrote:
>>
>> Hi all,
>> i have a directory with different numbers of files. I read the filenames by
>>
>> text = FINDFILE('H:/radiologie/*.dcm')
>
> you should use the count keyword of findfile
>
> Result = FINDFILE( File_Specification [, COUNT=variable] )
>
> FOR i=0,count-1 do ...
>
> regards
> Reimar
>
> --
> Reimar Bauer
>
> Institut fuer Stratosphaerische Chemie (ICG-1)
> Forschungszentrum Juelich
> email: R.Bauer@fz-juelich.de
> http://www.fz-juelich.de/icg/icg1/
> ============================================================ ======
> a IDL library at ForschungsZentrum Juelich
> http://www.fz-juelich.de/icg/icg1/idl_icglib/idl_lib_intro.h tml
>
> http://www.fz-juelich.de/zb/text/publikation/juel3786.html
> ============================================================ ======
>
> read something about linux / windows
> http://www.suse.de/de/news/hotnews/MS.html

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[Message index]

		End of Array - like - End Of File By: Emmler, Oliver on Fri, 27 July 2001 08:59
		Re: End of Array - like - End Of File By: Liam E. Gumley on Mon, 20 August 2001 07:36
		Re: End of Array - like - End Of File By: R.Bauer on Fri, 24 August 2001 03:02
		Re: End of Array - like - End Of File By: weitkamp on Mon, 20 August 2001 00:46
		Re: End of Array - like - End Of File By: R.Bauer on Sun, 19 August 2001 10:22

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