[C++-sig] Wrapping multiple class_<T> objects

[David Abrahams]

Peter Bienstman <Peter.Bienstman at rug.ac.be> writes:

> On Wednesday 20 November 2002 14:28, David Abrahams wrote:
>> Peter Bienstman <Peter.Bienstman at rug.ac.be> writes:
>> > On Wednesday 20 November 2002 14:02, David Abrahams wrote:
>> >> There are lots of ways to write this so you don't instantiate the same
>> >> class_<> twice. One is:
>> >>
>> >>   object slabwallmixed
>> >>          = class_<SlabWallMixed, bases<SlabWall> >
>> >>             ("SlabWallMixed", init<const Complex&, const Complex&>());
>> >>
>> >>   object slab_E_wall = slabwallmixed(1.0,1.0);
>> >>   object slab_H_wall = slabwallmixed(1.0,-1.0);
>> >
>> > Cool! But are these objects only for C++ internal use, or can I export
>> > them to Python?
>> >
>> > def("slab_E_wall", slab_E_wall)
>> >
>> > won't compile.
>>
>> What do you think it's supposed to do?
>
> Perhaps I misunderstand the use of 'object', 

You misunderstand the use of def(). Please read about scope here

http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/boost/boost/libs/python/doc/v2/scope.html

http://www.python.org/cgi-bin/moinmoin/boost_2epython_2fmodule
-- 
                       David Abrahams
   dave at boost-consulting.com * http://www.boost-consulting.com
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