Library writing - delegates or fp's?

[Chad J]

Derek Parnell wrote:
> 
>>I'm thinking incase someone wanted to say, have a mouse handling 
>>function be triggered by the GUI's delegate and also have it 
>>artificially triggered by some other code via a direct function call 
>>(maybe a tutorial, debug routine, or something like that).
> 
> 
> Sure you can! How about this ...
> 
> 
>  import std.stdio;
> 
>  int delegate(int) increment;
> 
>  void main()
>  {
>     writefln( increment(1) );
>     writefln( incr(2) );
>  }
> 
>  int incr( int a )
>  {
>      return a + 1;
>  }
> 
>  static this()
>  {
>      increment = delegate int ( int a ) {return incr(a); };
>  }
> 
> Would that do?
>  

Indeed.  That kicks ass.

I still have to completely wrap my head around that function literal 
syntax.  All of the sudden it is very useful to me.  :)