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Re: mpfitevalexpr not compiled [message #86087 is a reply to message #86084]

Wed, 02 October 2013 04:36

Heinz Stege
Messages: 189
Registered: January 2003

Senior Member

On Wed, 2 Oct 2013 02:30:25 -0700 (PDT), Mats Löfdahl wrote:

> I'm using Craig Markwardt's mpfitexpr and I'm trying to use also the companion function mpevalexpr. The problem is that after using mpfitexpr, mpevalexpr is not compiled.
>
> My program stops with the error message:
>
> % Variable is undefined: MPEVALEXPR.
>
> However, right after the program has stopped, I can use it:
>
> IDL> ys = mpevalexpr(fitexpr, xc, p)
>
Do you use the compile option "strictarr" (or "IDL2") in your program
(which calls mpevalexpr and then throws the error message)? If not,
IDL don't know that mpevalexpr is a function, if it compiles your
program before mpfitexpr. If this is true and you don't want to use
strictarr, you can try to explicitly declare mpevalexpr as a function.
Add the statement
forward_function mpevalexpr
in the header of your program to explicitly declare mpevalexpr as a
function.

Cheers, Heinz

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[Message index]

		mpfitevalexpr not compiled By: Mats Löfdahl on Wed, 02 October 2013 02:30
		Re: mpfitevalexpr not compiled By: Mats Löfdahl on Wed, 02 October 2013 02:32
		Re: mpfitevalexpr not compiled By: Heinz Stege on Wed, 02 October 2013 04:36
		Re: mpfitevalexpr not compiled By: Mats Löfdahl on Wed, 02 October 2013 04:49
		Re: mpfitevalexpr not compiled By: Craig Markwardt on Sun, 03 November 2013 12:06

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