Re: Exit Loop_Statement

[Robert Dewar <robert_dewar@my-deja.com>]

In article <3917C83E.D088C4DF@bton.ac.uk>,
  John English <je@bton.ac.uk> wrote:
> That should be Clients(1..4), right?

Well yes, of course, and of course we all saw that. But don't
you think it is instructive for people to find a bug like that
for themselves. I preferred the previous post which gave a
useful pointed hint (think about whether this will ever be
true), to this one that provides the correction directly.

A hard part of computer programming is figuring out why what
you have written does not work, and learning to be careful
and avoid writing such things in the first place. Practice
is really essential in this task. The purpose of assignments
is to provide this practice, and you have to be careful that
in an attempt to be helpful you do not bypass this very
important function.

> You should convert to e.g. lower case if you want case
> insensitivity:
>   if Ada.Characters.Handling.To_Lower(Clients(1..4)) = "stop"
> then ...

Again, I would point to the reference for this routine, rather
than give the exact code, which the student can then just cut
and paste without any understanding.




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