Safer casts

[Dee Girl]

Janice Caron Wrote:

> 2008/5/13 Dee Girl <deegirl at noreply.com>:
> >  int array[] = [1, 2, 3];
> >  int x = 5;
> >  sort!((int a, int b) { return a + x < b + x; })(array);
> >
> >  Two questions not one ^_^
> >
> >  1. Is the code inside sort!() as powerful as delegate?
> 
> The code inside sort!() /is/ a delegate. It's an anonymous delegate,
> but its implementation is exactly the same as a delegate with a name.
> It's equivalent to
> 
>     int foo (int a, int b) { return a + x < b + x; };
>     sort!(foo)(array);

Yes, excellent point. The codes are equivalent. But foo is not a delegate. It is a nested function. Like in Pascal. I am not sure how it can become delegate. Maybe Walter can answer because I see he writes here. Maybe when somebody takes address of foo. Dee Girl