Rcpp11/inst/include/Rcpp/wrap/TupleWrapper.h at master · Rcpp11/Rcpp11 · GitHub

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#ifndef Rcpp_wrap_TupleWrapper_h
#define Rcpp_wrap_TupleWrapper_h
namespace Rcpp{
    template <typename... Args>
    struct tuple_wrapper_type ;
    template <typename... Args> 
    struct Wrapper<std::tuple<Args...>> : LazyVectorWrapper<typename tuple_wrapper_type<Args...>::type> {} ;