Subject: Re: [boost] [General] A standard idiom or technique?
From: Eric Niebler (eric_at_[hidden])
Date: 2008-10-24 11:36:39
Jeff Flinn wrote:
>
> What would be useful is a generic function object whose argument is the
> tuple from above and can forward to a supplied function whose arguments
> are the individual values from the tuple.
>
> Something that keeps me from littering my code with custom functions ala:
>
> void existing_function(const T1&, const T2&, const T3&);
>
> struct tuple_adaptation_of_existing_function
> {
> void operator()(const tuple<T1, T2, T3>& t) const
> {
> existing_function(get<0>(t), get<1>(t), get<2>(t));
> }
> };
Yep. Boost.Fusion has several such utilities ...
http://www.boost.org/doc/libs/1_36_0/libs/fusion/doc/html/fusion/functional/adapters/fused.html
-- Eric Niebler BoostPro Computing http://www.boostpro.com