comp.lang.idl-pvwave archive: archive » Re: Need help with basic spawn command

Home » Public Forums » archive » Re: Need help with basic spawn command

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Need help with basic spawn command [message #54062 is a reply to message #54060]

Thu, 17 May 2007 07:02

Vince Hradil
Messages: 574
Registered: December 1999

Senior Member

On May 16, 5:34 pm, ryans...@gmail.com wrote:
> Im running IDL on XP.
>
> I have this basic C code:
>
> #include <stdlib.h>
>
> int main()
> {
>
> int n=5;
> n=n*2;
> return n;}
>
> //This file is basic.c
>
>> From IDL, I just want to call this program and return n.
>
> In IDL, I can write:
>
> SPAWN, 'basic' ; this of course runs the
> basic.c program.
>
> But this doesnt return anythingof course.. ive tried to add another
> variable after this line such as:
> SPAWN, 'basic', variable
>
> But windows doesnt like any of this...
>
> Can anyone help me with this basic application? With spawn in the past
> ive gotten it to do calculations on a variable and return them, but
> with no input, im unsure how to get the output.
>
> Thanks for any help! Ive also boughten the 'from c->dlm->idl' book but
> it wont be in for a few days.

I think your on the right track by "boughtening" the book, but a quick
and dirty answer: Have you c-program write to stdout, then use spawn.

Good luck!

Report message to a moderator

[Message index]

		Re: Need help with basic spawn command By: ryanselk on Thu, 17 May 2007 08:32
		Re: Need help with basic spawn command By: James Kuyper on Thu, 17 May 2007 08:12
		Re: Need help with basic spawn command By: Vince Hradil on Thu, 17 May 2007 07:02
		Re: Need help with basic spawn command By: yp on Thu, 17 May 2007 05:46
		Re: Need help with basic spawn command By: Allan Whiteford on Thu, 17 May 2007 04:14
		Re: Need help with basic spawn command By: yi.selab on Thu, 17 May 2007 01:45
		Re: Need help with basic spawn command By: Trae on Tue, 22 May 2007 05:55

Previous Topic:	Re: write a root group to HDF5 file
Next Topic:	2D interpolation with sparse data

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 17:50:15 PDT 2025

Total time taken to generate the page: 0.00476 seconds