Re: [boost] bind/lambda/phoenix and result_of

From: David Abrahams (dave_at_[hidden])
Date: 2006-05-09 12:04:07

"Arkadiy Vertleyb" <vertleyb_at_[hidden]> writes:

> "David Abrahams" <dave_at_[hidden]> wrote
>
>> One happy day, we'll have auto and decltype...
>>
>> Until then, we have no reasonable way to declare the type of bind
>> expressions.  So I got to thinking, maybe something like this could be
>> made to work:
>>
>>    result_of<bind_(std::minus<int>, int, _1_)>::type
>>           f = bind(std::minus<int>(), 3, _1);
>>
>> For lambda, I guess we could do something like this:
>>
>>    result_of<minus_(int, _1_)>::type f = 3 - _1;
>>
>> Does this direction make sense?
>
> Any particular reason why BOOST_TYPEOF is not an option?

It requires type registration, whereas this approach should not.
That's the only reason.

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