Re: [boost] [proto] transform for flattening an expression - how?

From: Eric Niebler (eric_at_[hidden])
Date: 2008-03-18 11:06:26

Markus Werle wrote:
> Eric Niebler <eric <at> boost-consulting.com> writes:
>> This one is easy:
>>
>>      proto::unpack_expr<sum>(
>>          fusion::as_vector(
>>              proto::flatten(a + b + c + d)
>>          )
>>      );
>>
>> fusion::as_vector() is needed because proto::unpack_expr() currently 
>> requires a random access sequence, and proto::flatten() returns a 
>> forward sequence. I should loosen that requirement.
> 
> This means an interface change. 
> Can we have your word on that it will be changed before official release?

It's not a breaking interface change, no. Everything that worked before 
will continue to work after I make this change. I'll fix it, but I don't 
see it as a high priority, since there's a workaround.

-- 
Eric Niebler
Boost Consulting
www.boost-consulting.com