Re: [Swig-user] Problems with %extending template classes

[Nitro <ni...@dr...>]

Am 01.09.2006, 02:57 Uhr, schrieb mark gossage <" <ma...@go...>>:

> Yes I did it differently.
> When I split the declaration and the %extend, there seems to be problems  
> with SWIG spotting it.
>
> // given the template:
> template<int N>
> struct Vector
> {
>   double p[N];
> };
> %template(Point5) Vector<5>;
>
> I tried the following:
>
> %extend Vector{...}         doesnt add the extra methods, no warning  
> given
>
> %extend Vector<N>{...}       doesnt add the extra methods, no warning  
> given
>
> %extend Vector<5>{...}       works ok
>
> %extend Point5{...}     generates warning during SWIG'ing,
>                           "%extend for undeclared class Pont5"
>
> This doesn't look like a good behaviour


Hey Mark,

I tried this today and it works for me:

%module vec

template<int N>
struct Vector
{
   double p[N];
};


%extend Vector
{
     void test() {}
}

%template(Point5) Vector<5>;

I guess the important thing is to move the %extend before the %template.  
If I try it the other way round it doesn't work. I think in this case the  
behaviour is ok.

-Matthias