[C++-sig] Re: return_self_policy / return_arg

[David Abrahams]

Very nice.  Just a couple nits:

Nikolay Mladenov <nickm at sitius.com> writes:

    >>> from return_self import *
    >>> l1=Label()
    >>> l1 is l1.label("bar")
    1
    >>> l1 is l1.label("bar").sensitive(0)
    1
    >>> l1.label("foo").sensitive(0) is l1.sensitive(1).label("bar")
    1
    >>> return_arg is return_arg(return_arg)
    1

These tests will break when we get bool in Python 2.3.  I use assert
instead.

> namespace boost { namespace python
> {
>     namespace detail
>     {
>         template <std::size_t>
>             struct return_arg_policy_pos_argument_must_be_greater_than_zero
> # if defined(__GNUC__) && __GNUC__ >= 3 || defined(__EDG__)
>         {error}
           ^^^^^
This will produce an error a little bit too early ;-)
I think you'd better delete it.
> # endif
>         ;
>

Once these fixes have been made, anyone with CVS write permission can
commit it as far as I'm concerned, or you can remind me when I come
back from vacation.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com