RHASH_SIZE       1051 include/ruby/ruby.h #define RHASH_SIZE(h) NUM2SIZET(rb_hash_size(h))
RHASH_SIZE        568 internal.h     #undef RHASH_SIZE
RHASH_SIZE        571 internal.h     #define RHASH_SIZE(h) (RHASH(h)->ntbl ? (st_index_t)RHASH(h)->ntbl->num_entries : 0)