I was busy, so just two comments about this long thread.

Walter Bright:

> A lot of people do think duck typing is very important.

But it's better to add features to D because they are useful for D programs, 
and not because lot of people want "duck typing" in general.

C#4 has added the "dynamic" keyword, its not named WizBang!, and its semantics 
is powerful and very well integrated with the rest of the language and virtual 
machine. This is how C# is better than D both in nomenclature style and in 
substance:
http://msdn.microsoft.com/en-us/library/dd264736.aspx

If you want you may use Google to find other better pages about the "dynamic" 
of C#4.

-----------------------

Andrej Mitrovic

> What's all this arguing about anyway?
> 
> import std.conv : duck;
> 
> alias duck as;
> alias duck adaptTo;
> 
> Done deal.

That's false/misleading. I've once renamed "writeln" as "putr" in one of my 
code snippets and Walter answered me he didn't know what "putr" means despite 
the first line in the 10-lines long program was the
import std.stdio: putr = writeln;

"alias" is useful, but it's also misleading. Usually if you want your code to 
be easy to understand you have to stick with the default names that everyone 
else uses.

Something partially related, about abuse of typedef in Linux kernel:
http://lkml.indiana.edu/hypermail/linux/kernel/0206.1/0402.html

Bye,
bearophile

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