[C++-sig] How to deal with array?

[Clark]

Thanks. I'll try it. And can you give me somthing about other solutions?

On Fri, Jul 01, 2005 at 12:01:32AM -0700, Ralf W. Grosse-Kunstleve wrote:
> There are a number of possible solutions. One that I explored recently and is
> particularly non-intrusive goes like this:
> 
> 1. Copy this file to your space (remove the #include <gltbx/...> if it is still
> version 1.1.1.1) and change the namespaces to your liking:
> 
>  
> http://cvs.sourceforge.net/viewcvs.py/cctbx/gltbx/pointer_args_bpl.h?view=markup
> 
> 2. Implement a thin wrapper like this (untested):
> 
>   void
>   A_set(A& self, boost::python::object const& py_n)
>   {
>     boost_python::converter<int> n_proxy("n", py_n, 4, false);
>     int* n = n_proxy.get();
>     A.set(n);
>   }
> 
> 3. Wrap like this (also untested):
> 
>   class_<A>("A")
>     .def("set", A_set)
>   ;
> 
> HTH,
>         Ralf
> 
> --- Clark <foo.Clark at gmail.com> wrote:
> 
> > Hi,
> > Can I expose a C++ array to python with Boost.Python? And Can I use a
> > python list conveniently in C++? 
> > 
> > For example, there is a C++ class as follows
> >     class A
> >     {
> >     private:
> >         int c[4];
> >     public:
> >         int d[10];
> > 
> >         void set(int *n)
> >         {
> >             for(int i = 0; i < 4; ++i)
> >                 c[i] = n[i]
> >         }
> >     }
> > and I want use class A above in Python like this
> >     a = A()
> >     print a.d[2]
> >     n = [1, 2, ,3, 4]
> >     a.set(n)
> > 
> > Can you give me some hints?
> 
> 
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