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Null terminated strings [message #28677]

Mon, 07 January 2002 10:11

James Kuyper
Messages: 425
Registered: March 2000

Senior Member

I'm reading a string-valued file attribute from an HDF file that was
created using C code. As seems quite reasonable for C programs, the
attribute was written with a length that includes a terminating null
character. When I read it in using IDL, that null character got included
as well. This causes a number of bizarre effects, most notably:

IDL> print,date
2001-10-07
IDL> print,date+'T12:00:00'
2001-10-07'T12:00:0

I can handle this particular case by using strmid(date,0,10), but in
general a file attribute might contain multiple null-delimited strings,
of unknown length. Is there an efficient way of converting such a string
into an IDL string array?

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[Message index]

		Null terminated strings By: James Kuyper on Mon, 07 January 2002 10:11
		Re: Null terminated strings By: Craig Markwardt on Wed, 09 January 2002 15:43
		Re: Null terminated strings By: James Kuyper on Wed, 09 January 2002 06:19
		Re: Null terminated strings By: Struan Gray on Thu, 10 January 2002 06:57
		Re: Null terminated strings By: Malcolm Walters on Wed, 09 January 2002 02:26
		Re: Null terminated strings By: Struan Gray on Wed, 09 January 2002 00:29
		Re: Null terminated strings By: James Kuyper on Tue, 08 January 2002 12:58
		Re: Null terminated strings By: Craig Markwardt on Tue, 08 January 2002 11:51
		Re: Null terminated strings By: thompson on Tue, 08 January 2002 09:17
		Re: Null terminated strings By: Jaco van Gorkom on Tue, 08 January 2002 08:17

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