[C++-sig] Re: Re: map key

[David Abrahams]

"Mike Rovner" <mike at bindkey.com> writes:

> "David Abrahams" <dave at boost-consulting.com> wrote in message
> news:uadhzfgpd.fsf at boost-consulting.com...
>> David Abrahams <dave at boost-consulting.com> writes:
>>
>> > I think it doesn't know about std::pair<const Key*,Value>, which is
>> > the iterator's value type ;-)
>
> Of cause, you are right!
>
>> > A Python map's iterator just iterates the keys, so you might need to
>> > build the iterator by hand if you want it to do the same thing.
>>
>> You could use the Boost transform iterator adaptor with std::select1st
>> to build an iterator over keys and expose it with class_<...>.range().
>
> I decided to leave them out. I already have keys(), values() and items(),
> so I can live without iter...().

Too bad; transform iterator adaptor with std::select1st + range()
would've been an easy and clean solution.

-- 
                       David Abrahams
   dave at boost-consulting.com * http://www.boost-consulting.com
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