Re: [Help-gsl] gsl_function in c++

[Ivan Liu]

Thanks Martin. But could you make it more explicit? How do you use
"this" pointer to pass the constant parameters?

Cheers,
Ivan


On 7/24/06, Martin Jansche <address@hidden> wrote:
> On 7/24/06, Ivan Liu <address@hidden> wrote:
>
> > I'd like to ask some c++ experts about how to write the equivalent
> > of type gsl_function using C++ convenctions, which takes
> > arbitrary parameter list that can be defined localy.
>
> In an object-oriented design, the API for the multi-dimensional root
> finding and minimization packages is simplified somewhat.  You don't
> need to pass around an explicit void pointer for constant parameters,
> since that role is taken over by the "this" pointer.  Instead of
> gsl_function, I would use an interface
>
> interface Function
> {
>   double f(double x);
> }
>
> in Java, or the equivalent abstract base class in C++.  It is then up
> any concrete implementation of Function to deal with additional
> parameters.
>
> Regards,
> -- mj