Function msNextKeyFromHashTable

maphash.c:229–256

}

const char *msNextKeyFromHashTable( hashTableObj *table, const char *lastKey )
{
    int hash_index;
    struct hashObj *link;

    if (!table) {
        msSetError(MS_HASHERR, "No hash table", "msNextKeyFromHashTable");
        return NULL;
    }
    
    if ( lastKey == NULL )
        return msFirstKeyFromHashTable( table );

    hash_index = hash(lastKey);
    for ( link = table->items[hash_index]; 
         link != NULL && strcasecmp(lastKey,link->key) != 0;
         link = link->next ) {}
    
    if ( link != NULL && link->next != NULL )
        return link->next->key;

    while ( ++hash_index < MS_HASHSIZE ) {
        if ( table->items[hash_index] != NULL )
            return table->items[hash_index]->key;
    }

    return NULL;
}