3 Dec
2008
3 Dec
'08
6:44 p.m.
Eric Niebler a écrit :
You use proto::functional::flatten to turn the binary + expression tree into a flat Fusion sequence, and then you use proto::functional::unpack_expr to turn the Fusion sequence into an expression node with any tag you want. See below:
I was roaming around flatten so guess I only missed the as_vector trick. I guess this means that this "n-ary" plus expression node can be then latter be matched by another grammar defined like (simple version ofc) : struct some_grammar : nary_expr<plus,vararg<_> > {}; ? -- ___________________________________________ Joel Falcou - Assistant Professor PARALL Team - LRI - Universite Paris Sud XI Tel : (+33)1 69 15 66 35