unsigned char *__ziplistCascadeUpdate(unsigned char *zl, unsigned char *p) {
    size_t curlen = intrev32ifbe(ZIPLIST_BYTES(zl)), rawlen, rawlensize;
    size_t offset, noffset, extra;
    unsigned char *np;
    zlentry cur, next;

    while (p[0] != ZIP_END) {
        zipEntry(p, &cur);
        rawlen = cur.headersize + cur.len;
        rawlensize = zipStorePrevEntryLength(NULL,rawlen);

        /* Abort if there is no next entry. */
        if (p[rawlen] == ZIP_END) break;
        zipEntry(p+rawlen, &next);

        /* Abort when "prevlen" has not changed. */
        if (next.prevrawlen == rawlen) break;

        if (next.prevrawlensize < rawlensize) {
            /* The "prevlen" field of "next" needs more bytes to hold
             * the raw length of "cur". */
            offset = p-zl;
            extra = rawlensize-next.prevrawlensize;
            zl = ziplistResize(zl,curlen+extra);
            p = zl+offset;

            /* Current pointer and offset for next element. */
            np = p+rawlen;
            noffset = np-zl;

            /* Update tail offset when next element is not the tail element. */
            if ((zl+intrev32ifbe(ZIPLIST_TAIL_OFFSET(zl))) != np) {
                ZIPLIST_TAIL_OFFSET(zl) =
                    intrev32ifbe(intrev32ifbe(ZIPLIST_TAIL_OFFSET(zl))+extra);
            }

            /* Move the tail to the back. */
            memmove(np+rawlensize,
                np+next.prevrawlensize,
                curlen-noffset-next.prevrawlensize-1);
            zipStorePrevEntryLength(np,rawlen);

            /* Advance the cursor */
            p += rawlen;
            curlen += extra;
        } else {
            if (next.prevrawlensize > rawlensize) {
                /* This would result in shrinking, which we want to avoid.
                 * So, set "rawlen" in the available bytes. */
                zipStorePrevEntryLengthLarge(p+rawlen,rawlen);
            } else {
                zipStorePrevEntryLength(p+rawlen,rawlen);
            }

            /* Stop here, as the raw length of "next" has not changed. */
            break;
        }
    }
    return zl;
}
unsigned char *__ziplistCascadeUpdate(unsigned char *zl, unsigned char *p) {
    size_t curlen = intrev32ifbe(ZIPLIST_BYTES(zl)), rawlen, rawlensize;
    size_t offset, noffset, extra;
    unsigned char *np;
    zlentry cur, next;

    while (p[0] != ZIP_END) {
        zipEntry(p, &cur);
        rawlen = cur.headersize + cur.len;
        rawlensize = zipStorePrevEntryLength(NULL,rawlen);

         
        if (p[rawlen] == ZIP_END) break;
        zipEntry(p+rawlen, &next);

         
        if (next.prevrawlen == rawlen) break;

        if (next.prevrawlensize < rawlensize) {
             
            offset = p-zl;
            extra = rawlensize-next.prevrawlensize;
            zl = ziplistResize(zl,curlen+extra);
            p = zl+offset;

             
            np = p+rawlen;
            noffset = np-zl;

             
            if ((zl+intrev32ifbe(ZIPLIST_TAIL_OFFSET(zl))) != np) {
                ZIPLIST_TAIL_OFFSET(zl) =
                    intrev32ifbe(intrev32ifbe(ZIPLIST_TAIL_OFFSET(zl))+extra);
            }

             
            memmove(np+rawlensize,
                np+next.prevrawlensize,
                curlen-noffset-next.prevrawlensize-1);
            zipStorePrevEntryLength(np,rawlen);

             
            p += rawlen;
            curlen += extra;
        } else {
            if (next.prevrawlensize > rawlensize) {
                 
                zipStorePrevEntryLengthLarge(p+rawlen,rawlen);
            } else {
                zipStorePrevEntryLength(p+rawlen,rawlen);
            }

             
            break;
        }
    }
    return zl;
}