[C++-sig] Re: Interest in luabind

[David Abrahams]

"Daniel Wallin" <dalwan01 at student.umu.se> writes:

>> "Daniel Wallin" <dalwan01 at student.umu.se> writes:
>>
>> >> Again I can only offer a second-hand view. IIUC, on
>> some platforms
>> >> it is possible to compare type_info objects across dll
>> boundaries as
>> >> if they are in the same static link unit. I.e. there is
>> nothing
>> >> special. On some platforms this is not possible, and
>> type_id::name
>> >> is used instead.  There is only one platform where
>> relying on
>> >> type_id::name caused a bit of a hick-up, namely
>> IRIX/MIPSpro. See
>> >> the comment near the top of the flew_fwd.h file (link
>> in my previous
>> >> message).
>> >
>> > Ok. I guess you could unmangle the names to a
>> standardized format if
>> > there are problems with this?
>>
>> No :(
>>
>> Sadly, the problem is that typedefs don't always get
>> fully-unwound in
>> type_info names, e.g.:
>
> Oh, ok. So you would need to unwound the types manually with
> specialization.

That doesn't even work the way you expect; they don't neccessarily
unwind completely.  It's just a matter of exposing one way to get the
type at the beginning of every translation unit.  But it works,
eventually, though it's ugly as sin.  Fortunately EDG knows about
this and has fixed the problem in their compiler.  Unfortunately it's
unclear when SGI will release anything that works based on a modern
EDG. :(

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