rb_str_drop_bytes  614 include/ruby/intern.h VALUE rb_str_drop_bytes(VALUE, long);
rb_str_drop_bytes 1409 string.c               rb_str_drop_bytes(str2, beg);
rb_str_drop_bytes 3055 string.c       	rb_str_drop_bytes(str, len);
rb_str_drop_bytes 3454 transcode.c            rb_str_drop_bytes(input, ip - (unsigned char *)RSTRING_PTR(input));