Re: How to convert a string containing two hex digits to a character?

[Adam Beneschan <adam@irvine.com>]

On Jan 9, 8:04 am, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
wrote:

> > There are no Pred and Succ on reals, complexes and the likes,
>
> BTW, there is Float'Succ! I tempted to say due to a language design flaw,
> because it exposes the nature of Float as a model.

I don't see this is a flaw.  It's a reminder that a Float, on any
computer, in any language, is actually limited to a subset of rational
numbers, which means you need to exercise some caution when using
them.  Programmers who think "Float" can represent any real number,
and that arithmetic on them is just like doing arithmetic on real
numbers, are going to get into trouble, so it doesn't seem like a good
thing to hide "the nature of Float as a model".

Anyway, Float'Succ was not present in Ada 83 but was added in Ada 95,
so someone must have thought it was useful for some practical purpose.

                               -- Adam