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From: Eric Niebler (eric_at_[hidden])
Date: 2004-12-02 20:52:20

Victor A. Wagner Jr. wrote:
> The program that causes this error used to compile (until a few days ago)
> I'm using the cvs HEAD
> c:\boost\include\boost-1_32\boost\iterator\iterator_facade.hpp(326) :
> error C2664: 'boost::implicit_cast' : cannot convert parameter 1 from
> 'const std::string *__w64 ' to 'boost::mpl::identity::type'
> with
> [
> T=boost::detail::operator_arrow_result,std::basic_string,std::allocator>::const_iterator,std::string>,std::string,boost::detail::minimum_category::type>::type,const
> std::string
> &>::value_type,boost::iterator_facade,std::basic_string,std::allocator>::const_iterator,std::string>,std::string,boost::detail::minimum_category::type>::type,const
> std::string
> &>::reference,boost::iterator_facade,std::basic_string,std::allocator>::const_iterator,std::string>,std::string,boost::detail::minimum_category::type>::type,const
> std::string &>::pointer>::type
> ]
> Conversion loses qualifiers

That's funny, I've spent the better part of today trying to track a
similar issue down. My scenario doesn't involve date_time, however. It
uses tokenizer directly (which is getting used indirectly in your case
by date_time). But my scenario is complicated, and my efforts to find a
simplier repro have failed.

Not a problem in date_time, but certainly a problem either in tokenizer
or iterator (or possibly a compiler bug). I'm continuing to investigate.

Eric Niebler
Boost Consulting

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