RE: [boost] Re: N-arity operators in C++, also reducing temporaries. [Repost]

Pavel Chikulaev wrote:

...

Fusion may provide the infrastructure for this. In the iostreams library, I used something like a homemade tuple; but for a more ambitious implementation of expression templates I would want to use existing tools as much as possible.

I've used in my library home-made

template<typename FirstArgT, typename Op, typename SecondArgT> class binary_op;

template<typename Op, typename ArgT> class unary_op;

template<typename LazyExpr> class result_of;

I don't think that Fusion will help me here, but I'll take a look at it.

IIUC Fusion won't help you here as much as Phoenix (the successor to Boost::LL) which already contains many of building blocks you'd need for your library. Regards Hartmut