shunsuke wrote:

dan marsden wrote:

...

The above change has now been applied. Docs upgrades will follow in the next few days.

The usage of boost::result_of is right?

IIRC, for example, <transform_view/detail/apply_transform_result.hpp> should be

template <typename T0> struct apply<T0, void_> : boost::result_of<F(typename add_reference<T0>::type)> {};

, because the object passed to a functor is lvalue.

I'm not sure about this. The function object f is called with f(*it). The dereference may return either l or rvalues depending on its implementation. The Boost.ResultOf docs are not specific about passing T versus T&. Looking a the draft TR1 docs, if Ti is a reference ti is an lvalue, otherwise it is an rvalue. As rvalues are possible, the above code looks correct. Assuming Boost.ResultOf behaves like the TR1 spec, I think the above is ok(?) It is possible this usage is not consistent correct across Fusion though. I'll have a review of the result_of usage shortly when I get a chance. Thanks Dan ___________________________________________________________ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/