rb_hash_size     1229 hash.c             return rb_hash_size(hash);
rb_hash_size     4290 hash.c             rb_define_method(rb_cHash,"size", rb_hash_size, 0);
rb_hash_size     4291 hash.c             rb_define_method(rb_cHash,"length", rb_hash_size, 0);
rb_hash_size      528 include/ruby/intern.h VALUE rb_hash_size(VALUE);
rb_hash_size     1051 include/ruby/ruby.h #define RHASH_SIZE(h) NUM2SIZET(rb_hash_size(h))