Re: [boost] [typeof] Duplicate definition of type_of::push_back

From: Peder Holt (peder.holt_at_[hidden])
Date: 2007-10-29 04:06:21

2007/10/24, Dave Jenkins <david_at_[hidden]>:
>
> [Note: This message received no response when posted to
> comp.lib.boost.user,
> so I'm reposting it here.]
>
> Hi,
> I'm testing with BOOST_TYPEOF_LIMIT_SIZE greater than 50 and native typeof
> disabled.  I get a "class template has already been defined" error on
> "template<class V, class T> struct push_back" whenever
> BOOST_TYPEOF_LIMIT_SIZE is *not* a multiple of 50.
>
> This is because push_back is defined in both "typeof/vector.hpp" and, for
> example, "typeof/vector50.hpp".  My fix is to change the push_back
> definition in "typeof/vector.hpp" to:
>
> #   if   BOOST_TYPEOF_LIMIT_SIZE < 50
>     template<class V, class T> struct push_back {
>         typedef V type;
>     };
> #   endif
>
> Can someone please confirm that this is the correct fix?  A tiny program
> demonstrating the problem is listed below.
> Thanks,
> Dave Jenkins
>
> #define BOOST_TYPEOF_COMPLIANT
> #define BOOST_TYPEOF_LIMIT_SIZE 51
> #include <boost/typeof/typeof.hpp>
> int main(){
>     return 0;
> }

Fixed in trunk.
Thanks for spotting this, and sorry for the slow response.

Peder

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