Safer casts

Sean Kelly sean at invisibleduck.org
Tue May 13 08:34:41 PDT 2008


Janice Caron wrote:
> 2008/5/13 Sean Kelly <sean at invisibleduck.org>:
>>  It depends what you mean by "powerful."  Passing a comparator as a template parameter,
>>  as with sort!(), means that the choice of comparator must be made at compile-time rather
>>  than run-time.  This may be problematic in some instances.
> 
> I think you meant to say, the choice of comparator /may/ be made at
> compile-time. Not must.
> 
>     sort!(compare)(array); // compile time
>     sort(compare, array); // run time

I meant the way sort works in std.algorithm.  But it appears that my 
answer was D 1.0-specific.  I had no idea D 2.0 added the option to 
instantiate a template on an alias to a local variable.


Sean



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