Re: [C++-sig] [Implementation] Calling wrapped functions, converters, policies

Daniel Wallin <[email protected]> writes:

> At 18:53 2003-09-21, David Abrahams wrote:
>>Daniel Wallin <[email protected]> writes:
>>
>> >>Actually I was thinking that the index should be encoded in the type
>> >>of the converter.
>> >
>> > Ok, both approaches work.
>>
>>I think we may have single converter tuple at this point.  If so we'll
>>want something like:
>>
>>        converters.convert(argument_package,mpl::int_<1>());
>
> I have expressed some concern on this before due to the issue with an
> additional layer when returning temporaries from convert().
> (with const& argument types..)
>
> I would rather see something like:
>
>     get<0>(converters).convert(argument_package);
>
> or
>
>     get<0>(converters).convert(argument_package, mpl::int_<0>());

I'm sorry, I don't see why one should be more problematic than the
other, but I'm willing to go with your first alternative if you like.
I think the 2nd one is unneccessary.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com



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