Re: Ada Pointer Problem

[Dale Stanbrough <MrNoSpam@bigpoop.net.au>]

skidmarks wrote:

> Why pointers? The compilers we are using pass by value. Arrays and
> records copied to the stack on subprogram entry, and copied back on
> subprogram exit (or so I have been told). A pointer reduces this copy
> operation.

This is a load of rubbish. Scalars are passed by copy in-copy out.
Other objects are passed in a manner that the compiler thinks will
be efficient. 
For almost any array and record that will be by reference.

> Putting it another way, I can build a house with a steel hammer or a
> brass hammer. If I used a brass hammer I would be required to
> periodically grind it's head to make it true. The brass hammer is
> shiny, bright, and a real pleasure to look at, but lacks something in
> use. As (in my opinion) does Ada.

You can't use a language without knowing it. If you think it should
work like all the other languages you know, then use them. Seems
simpler to me.

If you are not prepared to read the instructions before use, you
shouldn't be surprised if something breaks.

Dale

-- 
dstanbro@spam.o.matic.bigpond.net.au