"static if" is awesome

[Sean Kelly]

It's how D simplifies everyday programming tasks that really sells me on 
this language.  'Atomic' in Ares now supports increment and decrement 
operations for numeric and pointer types only, and it does so without 
any weird template machinations or duplicated code:

struct Atomic(T)
{
     T load();
     void store( T newval );
     bool storeIf( T newval, T equalTo );

     static if( isValidNumericType!(T) )
     {
         T increment();
	T decrement();
     }
}

Try that in C++ :-P


Sean