David Abrahams wrote:

> Some relatively significant revisions to the new iterator 
> adaptors and iterator facade in the sandbox have happened 
> recently.  Among other things, we managed to eliminate one 
> template parameter from iterator_adaptor (yay!).  We also 
> finalized our proposals for the C++ standard technical 
> report.  That text should serve as pretty good documentation 
> until we have been able to generate the usual Boost 
> "user-level" documentation from this material.  The docs are 
> in ReStructuredText (a plaintext markup format), but you can 
> view HTML formatted versions here:
> 
>     http://boost-consulting.com/writing/facade-and-adaptor.html
>     http://boost-consulting.com/writing/new-iter-concepts.html
>
> We plan to move the new adaptors into the main Boost CVS in the 
> relatively near future.  This will be an interface-breaking change; 
> if that's going to cause a major problem for anyone, please let us
know.

Is there any way to tell, which version of the iterator library is
installed on a target system? I could think of some pp constant, which
allows to configure a piece of code to use the 'old' or the 'new'
iterator lib. This would allow for a smooth transition of existing
libraries depending on the iterator_lib and looses the otherwise tight
coupling between some user code and a specific Boost version.

Regards Hartmut


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