Function xmlHashCreate

ThirdParty/libxml2/vtklibxml2/hash.c:159–195

* xmlHashCreate: * @size: initial size of the hash table * * Create a new hash table. Set size to zero if the number of entries * can't be estimated. * * Returns the newly created object, or NULL if a memory allocation failed. */

 * Returns the newly created object, or NULL if a memory allocation failed.
 */
xmlHashTablePtr
xmlHashCreate(int size) {
    xmlHashTablePtr hash;

    xmlInitParser();

    hash = xmlMalloc(sizeof(*hash));
    if (hash == NULL)
        return(NULL);
    hash->dict = NULL;
    hash->size = 0;
    hash->table = NULL;
    hash->nbElems = 0;
    hash->randomSeed = xmlRandom();
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
    hash->randomSeed = 0;
#endif

    /*
     * Unless a larger size is passed, the backing table is created
     * lazily with MIN_HASH_SIZE capacity. In practice, there are many
     * hash tables which are never filled.
     */
    if (size > MIN_HASH_SIZE) {
        unsigned newSize = MIN_HASH_SIZE * 2;

        while ((newSize < (unsigned) size) && (newSize < MAX_HASH_SIZE))
            newSize *= 2;

        if (xmlHashGrow(hash, newSize) != 0) {
            xmlFree(hash);
            return(NULL);
        }
    }

    return(hash);
}

/**
 * xmlHashCreateDict: