Subject: Re: [boost] [iterator] could non-small predicates/functors be stored as boost::optional<T> to avoid double construction?
From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2008-09-04 09:47:51
Arno SchÃ¶dl skrev:
>> The headline pretty much says it all. Take transform iterator. When the
>> predicate is not trivial, we also have a redundant construction of the
>> object in the end iterator. Maybe that could be removed?
>> best regards
> I guess that would be restricted to forward iterators.
This has nothing to do with the wrapped iterator's type. A transform
iterator currently stores a functor by value in addition to the wrapped