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.
Lead Developer,
What's On Where (WOW!)
http://www.wow.ie
mailto:[EMAIL PROTECTED]
-----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
>
>--------------------------------------------------------------
>Mark Warrick
>Phone: (714) 547-5386
>Efax.com Fax: (801) 730-7289
>Personal Email: [EMAIL PROTECTED]
>Personal URL: http://www.warrick.net
>Business Email: [EMAIL PROTECTED]
>Business URL: http://www.fusioneers.com
>ICQ: 346566
>--------------------------------------------------------------
>
>
>> -----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
>> AIM: Reboog711 | ICQ: 5246969 | Phone: 860-229-2781
>> --
>> DotComIt, LLC
>> Computer Consultant specializing in database driven web data
>> Lotus Notes/Domino, Cold Fusion
>> --
>> Half of the Alternative Folk Acoustic Duo called Far Cry Fly
>> http://www.farcryfly.com
>> http://www.mp3.com/FarCryFly
>> --
>> Does Everyone Think I'm a Cynical?
>> ------------------------------------------------------------------
>> ------------------------------
>> Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/
>> Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
>> or send a message with 'unsubscribe' in the body to
>> [EMAIL PROTECTED]
>
>---------------------------------------------------------------------------
---------------------
>Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/
>Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebarsts or send a
message with 'unsubscribe' in the body to [EMAIL PROTECTED]
---------------------------------------------------------------------------
Peter Theobald, Chief Technology Officer
LiquidStreaming http://www.liquidstreaming.com
[EMAIL PROTECTED]
Phone 1.212.545.1232 x204 Fax 1.212.545.0938
To put this contact information into your Palm device, click here:
http://www.coola.com/cgi-bin/addinfo.cgi?pid=15803&rid=972879910&type=A
----------------------------------------------------------------------------
--------------------
Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/
Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a
message with 'unsubscribe' in the body to [EMAIL PROTECTED]
----------------------------------------------------------------------------
--------------------
Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/
Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a
message with 'unsubscribe' in the body to [EMAIL PROTECTED]
------------------------------------------------------------------------------------------------
Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/
Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists or send a message
with 'unsubscribe' in the body to [EMAIL PROTECTED]
