Alisdair Meredith wrote:
> David Abrahams wrote:
>
>> Err, I don't get it. It seems to me that you only need the hack if
>> you're going to *specialize* swap. *Using* std::swap should work
>> just fine.
>
> OK, that's because I was confused <g>
> The following is really a minimal example, so I can be clearer this
> time:
>
>
>
> #include <boost/shared_ptr.hpp>
#include <algorithm>
It is unspecified whether shared_ptr.hpp will do it for you.
> class empty
> {
> };
>
> //#define DEMONSTRATE_BUG
> # if defined( DEMONSTRATE_BUG )
> namespace std
> {
> template<>
> void swap( empty &lhs, empty &rhs )
> {
> }
>
> }
> # endif
I think that this specialization is ill-formed if the primary swap<> isn't
in std. Your code is broken by STLport's tricks, even though it looks
correct. :-)
Try
template<> void std::swap( empty &lhs, empty &rhs )
{
}
instead and see if it works. (I think it's broken too but the compiler may
like it better.)
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