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Patrick DUPRÉ | | email: pdupre@xxxxxxx
Laboratoire de Physico-Chimie de l'Atmosphère | |
Université du Littoral-Côte d'Opale | |
Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44
189A, avenue Maurice Schumann | | 59140 Dunkerque, France
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> Sent: Thursday, June 04, 2015 at 3:01 PM
> From: "Jonathan Underwood" <jonathan.underwood@xxxxxxxxx>
> To: "Community support for Fedora users" <users@xxxxxxxxxxxxxxxxxxxxxxx>
> Subject: Re: gsl
>
> On 3 June 2015 at 22:23, Patrick Dupre <pdupre@xxxxxxx> wrote:
> > Hello,
> >
> > Can somebody help me?
> >
> > This short piece of code fails.
> > It seems to be due to the gsl library!
> >
> > Thank for your help.
> >
> > #include <gsl/gsl_multifit_nlin.h>
> >
> > int main () {
> > const gsl_multifit_fsolver_type *T_ ;
> > gsl_multifit_fsolver *s_ = gsl_multifit_fsolver_alloc (T_, 10, 1);
> > }
> >
>
>
> You haven't initialized T_, so when you call
> gsl_multifit_fsolver_alloc, it fails because it doesn't know what
> solver type to allocate for.
>
> So, try initializing it, eg.
>
> const gsl_multifit_fsolver_type *T_ = gsl_multifit_fdfsolver_lmsder;
warning: initialization from incompatible pointer type [enabled by default]
const gsl_multifit_fsolver_type *T_ = gsl_multifit_fdfsolver_lmsder ;
fsolver and fdfsolver are not compatible!
I did not find a way to initiate this pointer.
> HTH,
> Jonathan.
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