RE: [boost] Wave/flex_string with VC7.0 + dinkumware (new problem)

From: Hartmut Kaiser (HartmutKaiser_at_[hidden])
Date: 2004-05-21 00:57:35

Reece Dunn wrote:

> I reported that VC7 uses the correct implementation of 
> reverse_iterator, and that this can be detected via 
> BOOST_NO_STD_ITERATOR. Although this compiles, you cannot use 
> reverse iterators.
> 
> The problem is that the iterator is of the form (const) T *, 
> and this fails because there is not a correct implementation 
> of iterator_traits (due to a lack of partial template 
> specialization) that *is* detected by BOOST_NO_STD_ITERATOR_TRAITS.
> 
> The solution would therefore be to - in this case - provide 
> an iterator wrapper around a standard pointer so it has the 
> correct Iter::value_type, etc definitions. Is there an 
> iterator_adaptor that provides this within boost? If not, 
> should there be one? I am looking into this and will commit 
> the solution to my iterator_adaptor-style implementation 
> (sandbox/boost/fixed_string/detail/basic_string_impl.hpp).
> 
> NOTE: If you want to add any of my modifications to the Wave 
> flex_string implementation, feel free, but be warned that I 
> haven't run full tests on it yet and thus there might be bugs 
> in it (especially the pod_xxx --> traits_type::xxx, since 
> these functions have different parameters).

Thanks again for pointing that out. I'll have a look at it next week, when
I'm back home. Is this problem specific for VC7 or does it occur on the
VC7.1 platform also? If it's specific, then I would some need from somebody
to fix this, because I don't have it handy to reproduce the problem. Could
you provide a fix for Wave then?

Regards Hartmut