We delivered 100,000 lines of Ada 95 code, developed with Rational Rose
and Apex. It required lots of casting due to Ada's EXTREMELY strong
typing. The advantage is that mistakes will not slip by you; they'll
immediately smack you in the face. (That's an advantage?) The
disadvantage is the length of the code. It was the best-managed task
I've ever been involved with. Coding was a very small part of the effort
when compared with design and test.
-David
On Wed, 8 Nov 2000 21:09:52 -0500 "Christopher Olive, CIO"
<[EMAIL PROTECTED]> writes:
> dunno about that. try ada. 10 different types of strings. :)
>
> chris olive, cio
> cresco technologies
> [EMAIL PROTECTED]
> http://www.crescotech.com
>
>
>
> -----Original Message-----
> From: Anthony Geoghegan [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, November 08, 2000 6:02 AM
> To: CF-Talk
> Subject: RE: Is Cold Fusion a Typed Language?
>
>
> Try modula 2 for a strongly typed language.
> It must be the most strongly type system I've ever run into.
> Regards,
> Anthony Geoghegan.
>
> -----Original Message-----
> From: Peter Theobald [mailto:[EMAIL PROTECTED]]
> Sent: 07 November 2000 22:17
> To: CF-Talk
> Subject: RE: Is Cold Fusion a Typed Language?
>
>
> A strongly typed language requires you to declare the data type of
> all
> variables ahead of time. All functions return values that are of a
> specific
> type. All operators act on values of specific data types.
>
> For example, assume you have a function nth( list, n) that returns
> the nth
> value of a list where a list is a string with comma separated
> values. nth
> might be declared as follows:
> string nth( string list, integer n)
>
> It would be an error to pass anything but a string as the first
> argument. It
> would be an error to pass anything but an integer as the second
> argument. It
> would be an error to assign the results to anything but a string
> variable.
>
> string list = "10,20,30,40";
> string val;
> integer n=2;
> integer m;
>
> val = nth( list, n); ( val = the string "20")
> m = nth( list, n); (ERROR because nth returns a STRING not an
> integer)
> val = nth( list, "3") (ERROR because "3" is a string)
> val = nth( list, 3) (val = the string "30")
>
> If you need to get around these restrictions you need to explicitly
> convert
> the datatypes:
>
> m = convert( nth( list, 3), "integer")
> or
> m - (int) convert( nth( list, 3)) (this is how 'C' does it)
>
>
> The advantages of a strongly typed language are the
> compiler/run-time system
> can catch subtle errors because you are so explicit about what data
> types
> are being passed around.
> The disadvantage is it's a pain to have to declare everything ahead
> of time
> and to convert values all over the place.
>
> Most "typed languages" are not quite this strict and will do many
> automatic
> conversions for you.
>
>
> At 08:21 AM 11/7/00 -0800, Warrick, Mark wrote:
> >For the sake of us non-programmers could you explain what "typed
> language"
> means?
> >
> >---mark
> >
> >> -----Original Message-----
> >> From: Jeffry Houser [mailto:[EMAIL PROTECTED]]
> >> Sent: Tuesday, November 07, 2000 5:40 AM
> >> To: CF-Talk
> >> Subject: Is Cold Fusion a Typed Language?
> >>
> >>
> >>
> >> I've heard in quite a few places that ColdFusion is a typed
> language?
> >> However, it acts as an untyped language. Can anyone verify for
> me which
> >> one is actually true?
> >>
> >> You don't declare variables a type when you create them, and
> you
> >> can typically change a variable from a string to an integer
> without
> >> a second thought. I was told that ColdFusion handles all data
> >> conversion internally to take the burden off the user, but for
> >> efficiency's sake, it's best not to switch the type of a variable
> if
> >> you can avoid it.
> >>
> >> And if Cold Fusion is a typed language, what are the simple
> types?
> >> The standard string, integer, float, and boolean?
> >>
> >> --
> >> Jeff Houser
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