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boost::proto::listN — proto::list1<>, proto::list2<>, etc.,
are type sequences for use as the 2nd parameter to the
proto::expr<> class template.
// In header: <boost/proto/args.hpp> template<typename... Arg> struct listN { // types typedef ArgMchildM; // For eachMin[0,N)static const long arity; };
Type sequences, for use as the 2nd parameter to the
proto::expr<> class template. The
types in the sequence correspond to the children of a node in an expression tree.
There is no type literally named "listN"; rather, there is
a set of types named
proto::list1<>,
proto::list2<>, etc.