do_checksum        61 ext/zlib/zlib.c static VALUE do_checksum(int, VALUE*, uLong (*)(uLong, const Bytef*, uInt));
do_checksum       436 ext/zlib/zlib.c     return do_checksum(argc, argv, adler32);
do_checksum       474 ext/zlib/zlib.c     return do_checksum(argc, argv, crc32);
do_checksum      1985 ext/zlib/zlib.c     VALUE checksum = do_checksum(1, &dictionary, adler32);