Re: [Boost-users] [fusion] const and transform algorithm

vicente.botet wrote:

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I don't know. I'm not sure what you are looking for.

I just wat to apply the unction get to a tuple of futures and reviver the stored values. T& future<T>::get() is non const

YOu can use a tie (tuple of references).

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vector v; v = transform(v, f); I was lock for in the documentation and I have not found this assignation. Where in the documentation can I found that I can do that? See the sequence/views concepts and the docs for the containers. For example (http://tinyurl.com/84vdvp):

Notation: v Instance of vector s A Forward Sequence

Expression Semantics: v = s Assigns to a vector, v, from a Forward Sequence, s.

Thanks for the reference. I was looking for a function prototype. BTW, the example is not in line with the functions. vector v(12, 5.5f); std::cout << at_c<0>(v) << std::endl; std::cout << at_c<1>(v) << std::endl;

Why? "Semantics of an expression is defined only where it differs from, or is not defined in Random Access Sequence." You should read more carefully ;-)

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If for_each can change/mutate the sequence itself, why don't have a mutating_transform that takes a Sequence& and not a Sequence const& Because it is not needed.

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Just a last question. How move semantics maps with purely functional Sequences? Do you plan to add move semantics for the elements of the tuple? The concept of MovableSequence has a sens for you? Makes sense. Last BoostCon, we had a workshop about implementing Fusion for 0x incuding move. We'll have it when it is available.

Great! Would you try with a Boost.Move library?

Hah. Wish I had more time :-P Regards, -- Joel de Guzman http://www.boostpro.com http://spirit.sf.net