What's new in Tiburon

#21 07-17-2008, 04:27 PM

,

| | consider this as one step towards lambda expressions.
|
| Yet another new-fangled thing that I've heard of but don't understand

http://en.wikipedia.org/wiki/Lambda_calculus

--
Q

07/17/2008 13:27:43

XanaNews Version 1.17.5.7 [Q's Salutation mod]

#22 07-17-2008, 06:00 PM

Remy Lebeau (TeamB) a écrit :

> Generics were originally a .NET technology that are now being migrated to
> Win32 as well. Anonymous methods is something completely new, though.

Actually, .NET already has anonymous methods as well, and quie useful
they can be.

Joanna

--
Joanna Carter [TeamB]
Consultant Software Engineer

#23 07-17-2008, 06:08 PM

Joanna Carter wrote:

> Actually, .NET already has anonymous methods as well, and quie useful
> they can be.

He meant "...in Delphi."

--
Craig Stuntz [TeamB] · Vertex Systems Corp. · Columbus, OH
Delphi/InterBase Weblog : http://blogs.teamb.com/craigstuntz
IB 6 versions prior to 6.0.1.6 are pre-release and may corrupt
your DBs! Open Edition users, get 6.0.1.6 from http://mers.com

#24 07-17-2008, 06:57 PM

Q Correll wrote:

> http://en.wikipedia.org/wiki/Lambda_calculus

I didn't say I never read about it, just that I don't understand it
:-)

#25 07-17-2008, 07:13 PM

> I didn't say I never read about it, just that I don't understand it

Seconded - can someone tell me what lambda expressions are in the context of
programming languages? Looking at that Wikipedia page causes my eyes to
start rolling back in my head...

#26 07-17-2008, 09:15 PM

"Marc Rohloff [TeamB]" <marc@nospam.marcrohloff.com> wrote in message
news:1don5syewof1t.dlg@dlg.marcrohloff.com...
<SNIP>
> Apart from what Craig already mentioned, anonymous functions are
> really closures in that they capture their state.
> So guessing at the syntax a bit:
>
> type
> TSimpleProcedure = reference to procedure;
>
> function MakeProcedure(const name:string;
> start:integer):TSimpleProcedure;
> var i:integer;
> begin
> i := start;
> result := procedure begin
> WriteLn(name, '=', i);
> inc(i);
> end;
> end;
>
> var
> p1, p2:TSimpleProcedure;
> begin
> p1 := MakeProcedure('First', 1);
> p2 := MakeProcedure('Second', 42);
> p1();
> p2();
> p1();
> p2();
> end;
>
> Should print something like:
> First = 1
> Second = 42
> First = 2
> Second = 43
>
> I regularly use C# anonymous methods like this to remember something
> that I want to be done later.

That stuff reminds me of closures in Lua (www.lua.org) - quite handy at
times :-)
cheers,
Paul.

#27 07-17-2008, 09:17 PM

"Nathanial Woolls" <nwoolls@nospam.gmail.com> wrote in message
news:487fd1ff@newsgroups.borland.com...
>
> Seconded - can someone tell me what lambda expressions are in the context
> of programming languages? Looking at that Wikipedia page causes my eyes to
> start rolling back in my head...

This seems a pretty good starting point:

http://blogs.msdn.com/ericwhite/page...pressions.aspx

--
Wayne Niddery - TeamB (www.teamb.com)
Winwright, Inc. (www.winwright.ca)

#28 07-17-2008, 09:43 PM

> This seems a pretty good starting point:
>
> http://blogs.msdn.com/ericwhite/page...pressions.aspx

Wonderful, thanks very much!

#29 07-17-2008, 09:50 PM

Rick Carter wrote:
>> "Vincent Bergeron" <info@vincentbergeron.com> wrote in message
>> news:487f7541@newsgroups.borland.com...
>>> When it's ready... ;-)
>
> Alchemist wrote:
>> Hopefully before september when my SA becomes a waste of money. ;-)
>
> I wouldn't count on a release before September. I consider it a worthwhile
> investment to renew my SA annually, rather than using it as a one-time
> "gamble" on the release date of the next version.
>
> Rick Carter
> carterrk@despammed.com
> Chair, Delphi/Paradox SIG, Cincinnati PC Users Group
>
> --- posted by geoForum on http://delphi.newswhat.com

How many times gamble should it be, then??? <G>

David Erbas-White

#30 07-17-2008, 10:05 PM

>"Vincent Bergeron" <info@vincentbergeron.com> wrote in message
>news:487f7541@newsgroups.borland.com...
>> When it's ready... ;-)

Alchemist wrote:
>Hopefully before september when my SA becomes a waste of money. ;-)

I wouldn't count on a release before September. I consider it a worthwhile
investment to renew my SA annually, rather than using it as a one-time
"gamble" on the release date of the next version.

Rick Carter
carterrk@despammed.com
Chair, Delphi/Paradox SIG, Cincinnati PC Users Group

--- posted by geoForum on http://delphi.newswhat.com

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode