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Re: IDL 8.0 compile_opt changes [message #69175 is a reply to message #69174]

Sat, 19 December 2009 09:55

wlandsman
Messages: 743
Registered: June 2000

Senior Member

On Dec 19, 11:13 am, "M. Katz" <MKatz...@yahoo.com> wrote:
> I have 400,000 lines of code in my libraries. Maybe 100,000 is
> "active." I would avoid upgrading to avoid having to convert every old
> () to [] in code I wrote years ago but still rely on.

What if 99,900 lines of code could be automatically converted using a
single command? As I mentioned, my very old code idlv4_to_5 (http://
idlastro.gsfc.nasa.gov/ftp/contrib/landsman/v5/idlv4_to_v5.p ro )
wasn't perfect, but I think most of its omissions are fixable without
too much trouble. I suspect the only case where an automatic
conversion couldn't work is for lines within an EXECUTE() statement.

My problem with a new extension name is that I would like to write
code that would work on both post- and pre-8.0 versions. For the
next few years I would envision writing code snippets like this

if !VERSION.RELEASE GE '8.0' then begin
;............Use the dot for object method calls
endif else begin
;............Use the traditional object method syntax
endelse

so that the code could still run in versions prior to V8.0. But
these earlier IDL versions won't have any recognition of a .prx
extension.

Hmmm... I could see writing code like this getting very unwieldy.
Maybe instead we would need a new program IDLV7_to_V8 to automatically
convert code to the new method syntax...

--Wayne

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[Message index]

		Re: IDL 8.0 compile_opt changes By: chris_torrence@NOSPAM on Mon, 21 December 2009 09:23
		Re: IDL 8.0 compile_opt changes By: H. Evans on Mon, 21 December 2009 06:43
		Re: IDL 8.0 compile_opt changes By: Foldy Lajos on Mon, 21 December 2009 05:52
		Re: IDL 8.0 compile_opt changes By: H. Evans on Mon, 21 December 2009 05:15
		Re: IDL 8.0 compile_opt changes By: Wout De Nolf on Mon, 21 December 2009 03:00
		Re: IDL 8.0 compile_opt changes By: penteado on Sun, 20 December 2009 22:16
		Re: IDL 8.0 compile_opt changes By: ddegraff on Sun, 20 December 2009 21:33
		Re: IDL 8.0 compile_opt changes By: wallabadah on Sun, 20 December 2009 17:10
		Re: IDL 8.0 compile_opt changes By: Robbie on Sun, 20 December 2009 03:15
		Re: IDL 8.0 compile_opt changes By: penteado on Sat, 19 December 2009 12:32
		Re: IDL 8.0 compile_opt changes By: chris_torrence@NOSPAM on Sat, 19 December 2009 11:11
		Re: IDL 8.0 compile_opt changes By: wlandsman on Sat, 19 December 2009 09:55
		Re: IDL 8.0 compile_opt changes By: H. Evans on Sat, 19 December 2009 09:45
		Re: IDL 8.0 compile_opt changes By: penteado on Sat, 19 December 2009 08:16
		Re: IDL 8.0 compile_opt changes By: M. Katz on Sat, 19 December 2009 08:13
		Re: IDL 8.0 compile_opt changes By: H. Evans on Sat, 19 December 2009 02:19
		Re: IDL 8.0 compile_opt changes By: H. Evans on Sat, 19 December 2009 02:00
		Re: IDL 8.0 compile_opt changes By: penteado on Fri, 18 December 2009 18:39
		Re: IDL 8.0 compile_opt changes By: wlandsman on Fri, 18 December 2009 18:26
		Re: IDL 8.0 compile_opt changes By: David Fanning on Fri, 18 December 2009 14:33
		Re: IDL 8.0 compile_opt changes By: Mark Piper on Tue, 29 December 2009 07:26
		Re: IDL 8.0 compile_opt changes By: markb77 on Wed, 23 December 2009 19:40

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