[C++-sig] how to pass function pointer to a constructor of a template class when wrap it by pyste

[Qinfeng(Javen) Shi]

Dear all,

I have a class (in hello.cc file) whose constructor assgins a value to a
global function pointer. It is compiled by gcc and it works well. But it
always reports an error when I used bjam to build the hello.cpp file (which
is produced by pyste). If I remove the template, it works. But I do need the
template. Does anybody know how to wrap it correctly?

Any suggestion is appreciated.

The hello.cc, hello.pyste, Jamfile are as following:
/********************hello.cc*************/
#include <stdio.h>
float add(float a, float b)
{
    return a+b;
}
float minus(float a, float b)
{
    return a-b;
}
float (*op)(float a, float b) = add;

template<class P>
class cover_tree {
P value;
public:
    cover_tree(float (* metric)(float a, float b))
    {
        op= metric;

    }
    cover_tree()
    {
    }
};

int main()
{
    float a,b,c;
    a = 1;
    b = 2;
    cover_tree<float> ct2(minus);
    c = op(a,b);
    printf("%f\n",c);

}

/************************hello.pyste*********/
cover_tree = Template('cover_tree','hello.cc')
cover = cover_tree("float")
Function("main", "hello.cc")

/************************Jamfile***********/

# This is the top of our own project tree
project-root ;

#   Include definitions needed for Python modules
import python ;

extension hello        # Declare a Python extension called hello
:   hello.cpp
    # requirements and dependencies for Boost.Python extensions
    <template>@boost/libs/python/build/extension
    ;

-- 
Javen

Research School of Information Sciences and Engineering
Australian National University
Locked Bag 8001
Canberra ACT 2601
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