untemplated C++ class with templated constructor has no constructor in SWIG 3, works OK in SWIG 2

[r-owen]

This problem is described in detail here http://stackoverflow.com/questions/26390195/swig-3-wrap-untemplated-class-with-templated-constructor. In summary: I have a C++ class that is not templated but has templated constructors . I was able to make a Python wrapper in SWIG 2, but the same code fails in SWIG 3.0.2 by having the wrapper class's constructor raise AttributeError("No constructor defined")

Here is a self-contained example (from an answer to that query):

price@price-laptop:~/test $ cat test.h

#ifndef TEST_H
#define TEST_H

#include <iostream>
#include <typeinfo>

namespace test {

class Foo
{
public:
    template<typename T>
    Foo(T bar);
    ~Foo() {}
    void working() const {
        std::cout << "WORKING" << std::endl;
    }
};

}

#endif

price@price-laptop:~/test $ cat test.cc

#include "test.h"

namespace test {

template <typename T>
Foo::Foo(T) {
    std::cout << typeid(T).name() << std::endl;
}

template Foo::Foo(int);

}

price@price-laptop:~/test $ cat test.i

%feature("autodoc", "1");
%module(package="test", docstring="test") testLib

%{
#include "test.h"
%}

%include "test.h"

%extend test::Foo {
     %template(Foo) Foo<int>;
}

price@price-laptop:~/test $ clang++ -shared -undefined dynamic_lookup -o libtest.dylib test.cc

[ojwb]

What is the exact SWIG version which works?

[r-owen]

Our more complex version of this code works with SWIG 2.0.12 and 2.0.4; we have not tried other versions of SWIG.