Re: Localized Variable Declaration

[dewar@gnat.com (Robert Dewar)]

David Rasmussen <pinkfloydhomer@yahoo.com> wrote in message news:<3CF9EC9F.9020203@yahoo.com>...
> I have already explained the benefits. I am not saying that this is 
> always better, and I know it is largely a matter of taste. But I can 
> assure you that there are real-life benefits in terms of ease of 
> maintenance and readability to doing this. I think it comes down to what 
> you're used to.


No, you have not explained why it is useful to have special
syntax to say that the scope is from here to the end, rather than
explicitly specifying the scope. I find that
in practice the C++ convention encourages sloppy programming in which
you get scopes unintentially
left open, for example, people write

        int t;
        t = x; x = y; y = t;

for an exchange instead of the far preferable

        {
           int t;
           t = x; x = y; y = t;
        }

why preferable? because in the first form, you do not
know if it is important that the value of y ends up in
t, so you have to remember that in case.

Yes, the first form saves the writer two keystrokes but
in Ada we don't care to save the writer effort :-)