Function setTypeNextObject

src/t_set.cpp:180–196

The not copy on write friendly version but easy to use version * of setTypeNext() is setTypeNextObject(), returning new SDS * strings. So if you don't retain a pointer to this object you should call * sdsfree() against it. * * This function is the way to go for write operations where COW is not * an issue. */

 * This function is the way to go for write operations where COW is not
 * an issue. */
sds setTypeNextObject(setTypeIterator *si) {
    int64_t intele;
    const char *sdsele;
    int encoding;

    encoding = setTypeNext(si,&sdsele,&intele);
    switch(encoding) {
        case -1:    return NULL;
        case OBJ_ENCODING_INTSET:
            return sdsfromlonglong(intele);
        case OBJ_ENCODING_HT:
            return sdsdup(sdsele);
        default:
            serverPanic("Unsupported encoding");
    }
    return NULL; /* just to suppress warnings */
}

/* Return random element from a non empty set.
 * The returned element can be an int64_t value if the set is encoded