Function array_iter_next

src/include/utils/arrayaccess.h:80–116

}

static inline Datum
array_iter_next(array_iter *it, bool *isnull, int i,
				int elmlen, bool elmbyval, char elmalign)
{
	Datum		ret;

	if (it->datumptr)
	{
		ret = it->datumptr[i];
		*isnull = it->isnullptr ? it->isnullptr[i] : false;
	}
	else
	{
		if (it->bitmapptr && (*(it->bitmapptr) & it->bitmask) == 0)
		{
			*isnull = true;
			ret = (Datum) 0;
		}
		else
		{
			*isnull = false;
			ret = fetch_att(it->dataptr, elmbyval, elmlen);
			it->dataptr = att_addlength_pointer(it->dataptr, elmlen,
												it->dataptr);
			it->dataptr = (char *) att_align_nominal(it->dataptr, elmalign);
		}
		it->bitmask <<= 1;
		if (it->bitmask == 0x100)
		{
			if (it->bitmapptr)
				it->bitmapptr++;
			it->bitmask = 1;
		}
	}

	return ret;
}

#endif							/* ARRAYACCESS_H */