[pp_select] Create meta selector #2
Description
#define funcs zero, one, two, three
#define sfunc(...) SPLAT_ARITY_META_SELECTOR(funcs)(funcs, __VA_ARGS__){{ message }}
#define funcs zero, one, two, three
#define sfunc(...) SPLAT_ARITY_META_SELECTOR(funcs)(funcs, __VA_ARGS__)