zmemzero          201 other-licenses/zlib/deflate.c     zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
zmemzero          792 other-licenses/zlib/gzio.c             zmemzero(s->inbuf, Z_BUFSIZE);
zmemzero          237 other-licenses/zlib/zutil.h    extern void zmemzero OF((Bytef* dest, uInt len));