Re: Multi Dimensional Array

[boldt@xxxxxxxxxx]

Don wrote:
>I'm told that alot of the multi-d code is already in the compiler and that
>it is taking about 8-man-years to test the thing....  Frankly, I wish
>they'd've just given it to us in stages, like array inits, and simple cell
>moves then the full dynamic goodies later...

That's sorta true.  We started RPG IV with the intention of
having 3-d arrays.  And much code was written to allow it.
But schedule pressures squeezed out a few things, and the
code has since languished.  The current thinking is that the
existing code won't make the job of adding 3-d arrays back
in much easier since every affected place in the compiler
will have to be looked at again anyways.  It definitely won't
make testing any easier.

Back in the last enhancement poll, we had two items relating
to multi-dim arrays:  support in all opcodes, and support
just in expressions.  If the CF-Spec becomes popular, the
latter option would make much more sense and would be much
easier to implement.

My guess would be that multi-dim arrays will be close to the
top in the next enhancement poll.

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com


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