wrapping specialised c++ template class with swig

Question

consider the following class declarations:

namespace X {
template
class Foo {
public:
    Foo();
    virtual ~Foo();

    T value() const;
};
         


        

Answer 1

You can achieve the result you want by doing:

%include "stl.i"
%include "std_string.i"
%include "std_vector.i"

namespace X {
using namespace std;

%rename(FooVectorInt) Foo<std::vector<int> >;

class Foo<std::vector<int> > {
public:
    virtual ~Foo();
    int value( const int ) const;
};

template<class T>
class Foo {
public:
    Foo();
    virtual ~Foo();
    T value() const;
};

%template(FooInt) Foo<int>;
%template(FooString) Foo<string>;
}

This works because what you write in the interface file isn't C++ and all that matters is that the correct code is generated by SWIG. If you want to repeat this lots you can write macros (which is close to what %template is anyway).

Still this isn't a very clean solution - I expected this to "just work" with the specialisations and I can't see a simpler workaround either.