Re: [Boost-users] [Proto] Forwarding evaluation via tag

Eric Niebler wrote:

Hope that helps, It did ;)

So everything is working right now. Thanks again. Samll question, for a given eval_xpr, if I do : eval_xpr()(x+y, state, data); it seems that the operator()(Expr,State,Data) of the transform require the Expr to be a reference and so, the former call fails as x+y is a temporary. Is it on, purpose or is it a missing feature ?