Re: Ada statement

[aio!gwharvey@tmc.edu (Greg Harvey)]

In <3848@aldebaran.cs.nps.navy.mil> schweige@taurus.cs.nps.navy.mil (Jeffrey M.
 Schweiger) writes:

>So tell me, what can't you do in Ada that you can do in C (not necessarily
>by the same method, and with the same ease)?

On Space Station Freedom, there is a need to execute from an address.
(I won't go into WHY there is a need...please just accept this need
as an instructional example, i.e., at face value.)  There is no way
in Ada to begin execution from an address, short of handing that data
to a C or Assembly program for execution.  Better solutions would
include using reference tables, etc., but these do not take into
account that some software MUST be installable into a working
application without a fully qualified link phase.

Can we devise other solutions for this problem that work?  Probably.
Will they work for Space Station?  Not now.  Can 9X fix this?
Probably, by treating procedures as objects or parameters.

(This is supposed to be a discussion, so I don't mind the tomatoes
that are about to be thrown my way.  Feel free to instruct me.  ;-)


--
Greg Harvey                     Lockheed Engineering & Sciences Company
Internet(yucky path): <@aio.jsc.nasa.gov:gwharvey@lescsse.jsc.nasa.gov>
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