using host arrays in PRO*C

I wonder how the dimension of host arrays in PRO*C is determined by Oracle. Looking at the generated C code, only the address of the array is being passed to sqlcex.
The dummy at Oracle technical support told me, that this is proprietary information and I don't need to know. Unbelievable!!! Personally, I don't know of any reliable way of determining the size of an array allocated on the heap. Has anybody tried to use a host array allocated on the heap? Would it help if I use a FOR clause?

Thanks,
Shneor Berezin, SMTS, Molecular Simulations Inc., shneor_at_ba.msi.com Received on Tue Aug 15 1995 - 00:00:00 CEST