Re: [Boost-users] [fusion] transform a heterogeneous vector

Fusion uses boost::result_of to determine the return type of a call expression. Therefore you just need to define a result-metafunction. struct triple { template<typename Sig> struct result; template<typename Self, typename Arg> struct result<Self(Arg)> { typedef Arg type; }; //... }; -Christopher Jean-Louis Leroy schrieb:

...all the elements have the same type. How can it work with heterogeneous vectors ? What would be typedef'ed to result_type ?

Jean-Louis