rb_enumerator_size_func 121 enumerator.c rb_enumerator_size_func *size_fn; rb_enumerator_size_func 228 include/ruby/intern.h VALUE rb_enumeratorize_with_size(VALUE, VALUE, int, const VALUE *, rb_enumerator_size_func *); rb_enumerator_size_func 231 include/ruby/intern.h rb_enumeratorize_with_size(obj, id, argc, argv, (rb_enumerator_size_func *)(size_fn))