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Re: Creating procedure with arbitrary number of input parameters [message #78997 is a reply to message #78991]

Thu, 12 January 2012 12:30

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On 1/12/12 12:58 PM, PMan wrote:
> On Jan 12, 2:36 pm, Michael Galloy<mgal...@gmail.com> wrote:
>> On 1/12/12 12:34 PM, PMan wrote:
>>
>>> I am trying to created a procedure with an arbitrary number of input
>>> parameters that will be determined at run time. There does seem to be
>>> a mechanism to do this in IDL. For example, in the STRING function:
>>
>>> Syntax
>>> Result = STRING( Expression1, ..., Expressionn, ....
>>
>>> can handle N input parameters. However, I cannot find any documents or
>>> references showing how to implement this.
>>
>>> Does any one here know how this can be achieved?
>>
>>> Thank you for your attention.
>>
>> It can be done in C as a DLM.
>>
>> Mike
>> --
>> Michael Galloywww.michaelgalloy.com
>> Modern IDL, A Guide to Learning IDL:http://modernidl.idldev.com
>> Research Mathematician
>> Tech-X Corporation
>
> Ah, I see. Time for plan B. Thank you for your quick answer.

Of course, you can fake this by making your routine have 10 arguments
(or whatever number you don't think the user will ever exceed) and a
CASE statement. Ugly, but gets the job done usually.

Mike
--
Michael Galloy
www.michaelgalloy.com
Modern IDL, A Guide to Learning IDL: http://modernidl.idldev.com
Research Mathematician
Tech-X Corporation

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[Message index]

		Re: Creating procedure with arbitrary number of input parameters By: Russell[1] on Sat, 14 January 2012 11:26
		Re: Creating procedure with arbitrary number of input parameters By: penteado on Fri, 13 January 2012 11:13
		Re: Creating procedure with arbitrary number of input parameters By: wlandsman on Fri, 13 January 2012 10:30
		Re: Creating procedure with arbitrary number of input parameters By: cgguido on Fri, 13 January 2012 09:48
		Re: Creating procedure with arbitrary number of input parameters By: Michael Galloy on Thu, 12 January 2012 12:30
		Re: Creating procedure with arbitrary number of input parameters By: PMan on Thu, 12 January 2012 11:58
		Re: Creating procedure with arbitrary number of input parameters By: Michael Galloy on Thu, 12 January 2012 11:36

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