[C++-sig] with_custodian_and_ward problem

[Hans Meine]

Hi!

I have a typical call policies problem, which I believed to be solvable with 
with_custodian_and_ward, but I cannot get it to compile.  (I am using 
make_constructor, maybe that is relevant?)  I guess that I simply did not 
understand BPL's reference counting policies correctly..

I created a testcase (attached, too):

This is my class which internally stores a reference to an object given to the 
constructor:
> struct T
> {
>     T(int &foo) : foo_(foo) {}
>     int &foo_;
> };
>
> int someInt;
>
> static T *createT()
> {
>     return new T(someInt);
> }

I tried using this export code (and some others), which is obviously wrong:
>     class_<T, boost::noncopyable>("T", no_init)
>         .def("__init__", make_constructor(
>                  &createT,
>                  with_custodian_and_ward_postcall<0, 1>()));

How can I properly tell BPL to make sure that the object passed to the 
constructor must not be deleted before the "T" instance?

Ciao, /  /
     /--/
    /  / ANS

PS: I am currently using 1.34.0beta, does that matter?
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