HTChunk * ch = (HTChunk *) calloc(1, sizeof(HTChunk));
HTChunk * ch = typecalloc(HTChunk);
PUBLIC HTChunk * HTChunkCreate ARGS1 (int,grow){    HTChunk * ch = (HTChunk *) calloc(1, sizeof(HTChunk));    if (ch == NULL)        outofmem(__FILE__, "creation of chunk");    ch->data = 0;    ch->growby = grow;    ch->size = 0;    ch->allocated = 0;    return ch;}