More content for RcppAnnoy.h about rcppannoy HOT 4 CLOSED

// -- convenience typedefs
//    prefixed with Rcpp to ensure we are most unlikely to clash with upstream defines
//    usage of these is entire optional

#ifdef ANNOYLIB_MULTITHREADED_BUILD
  typedef AnnoyIndexMultiThreadedBuildPolicy RcppAnnoyIndexThreadPolicy;
#else
  typedef AnnoyIndexSingleThreadedBuildPolicy RcppAnnoyIndexThreadPolicy;
#endif

typedef Annoy<int32_t, float,    Angular,   Kiss64Random, RcppAnnoyIndexThreadPolicy> RcppAnnoyAngular;
typedef Annoy<int32_t, float,    Euclidean, Kiss64Random, RcppAnnoyIndexThreadPolicy> RcppAnnoyEuclidean;
typedef Annoy<int32_t, float,    Manhattan, Kiss64Random, RcppAnnoyIndexThreadPolicy> RcppAnnoyManhattan;
typedef Annoy<int32_t, uint64_t, Hamming,   Kiss64Random, RcppAnnoyIndexThreadPolicy> RcppAnnoyHamming;