Hi Berend,

>The question belongs on the R-devel mailinglist.
I try to find this mailing-list ...

>You are calling your Fortran routines directly from an R file with .Fortran, I 
>presume?
Yes. Is there another solution (possibility ?)

>Declare them with (:,:) or (*,*), allocate and the return the array? A 
>Fortran95 pointer?
That was what I wanted to do ...

>I think  all of that is just a no no.
It would be a big problem with memory management but R could copy the result 
before the memory attached to the FORTRAN subroutine is cleared at the end of 
the routine. R does so strange things (for an old programmer as I am).

>Is it possible to calculate the required size of the array in a separate 
>routine given some parameters (as can often be done with >Lapack routines) 
>before calling the main subroutine?
>If so, call the sizing routine and then declare the correctly sized array in 
>your R code and pass it to the main subroutine.

It's a good idea : a 'two shots' routine. I'll dig that (I'll work in this 
direction).

Thanks
Jean



Ce message et toutes les pièces jointes (ci-après le 'Message') sont établis à 
l'intention exclusive des destinataires et les informations qui y figurent sont 
strictement confidentielles. Toute utilisation de ce Message non conforme à sa 
destination, toute diffusion ou toute publication totale ou partielle, est 
interdite sauf autorisation expresse.

Si vous n'êtes pas le destinataire de ce Message, il vous est interdit de le 
copier, de le faire suivre, de le divulguer ou d'en utiliser tout ou partie. Si 
vous avez reçu ce Message par erreur, merci de le supprimer de votre système, 
ainsi que toutes ses copies, et de n'en garder aucune trace sur quelque support 
que ce soit. Nous vous remercions également d'en avertir immédiatement 
l'expéditeur par retour du message.

Il est impossible de garantir que les communications par messagerie 
électronique arrivent en temps utile, sont sécurisées ou dénuées de toute 
erreur ou virus.
____________________________________________________

This message and any attachments (the 'Message') are intended solely for the 
addressees. The information contained in this Message is confidential. Any use 
of information contained in this Message not in accord with its purpose, any 
dissemination or disclosure, either whole or partial, is prohibited except 
formal approval.

If you are not the addressee, you may not copy, forward, disclose or use any 
part of it. If you have received this message in error, please delete it and 
all copies from your system and notify the sender immediately by return message.

E-mail communication cannot be guaranteed to be timely secure, error or 
virus-free.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to