D dropped in favour of C# for PSP emulator

[Andre Artus]

On Friday, 11 May 2012 at 23:51:47 UTC, Mehrdad wrote:
> On Friday, 11 May 2012 at 21:53:06 UTC, Jonathan M Davis wrote:
>> I know that haskell has such a function, and there were a 
>> number of complaints previously that we _didn't_ have an any 
>> function which does exactly what std.algorithm.any now does. 
>> It's a very functional approach to use predicates like that 
>> and I get the impression that it's common in other functional 
>> languages based on other's comments. The only one off the top 
>> of my head that I _know_ has such a function though is haskell.
>
>
> Again, I know enough FP to know what predicates are, and of
> course, this is common in functional languages.
>
> Even Scheme has a 'there-exists?' function just for this 
> purpose.
>
> I wasn't saying having "such a function" is weird -- I was just
> asking if you know of any languages in which the NAME is 
> "any()",
> since I would've imagined it to be something more intuitive like
> "exists()" or "contains" or "has" or whatever.
> (I was giving C# as an example, because C# uses "Any()" to mean,
> "are there any elements in this list?", NOT with the meaning D
> uses.)

In .NET 3.5, and later, 'Any()' has an overload that takes a 
predicate so it behaves identical to 'any' in Haskell and D.

public static bool Any<TSource>(
	this IEnumerable<TSource> source,
	Func<TSource, bool> predicate
)

The Exists method is an older construct with a more limited 
application (List vs IEnumerable)