Cannot use function as foreach aggregate.

[BCS]

Jarrett Billingsley wrote:
> "BCS" <BCS at pathlink.com> wrote in message 
> news:ev45id$94v$1 at digitalmars.com...
> 
>>Jarrett Billingsley wrote:
>>
>>Of course this all only works for statically known functions. If that 
>>isn't the case then the original solution is needed.
>>
>>OTOH this might work
>>
>>template ToDelegate(alias func)
>>{
>> ReturnType!(func) delegate(ParameterTypeTuple!(func)) ToDelegate()
>> {
>>  struct S
>>  {
>>   ReturnType!(func) callMe(ParameterTypeTuple!(func) args)
>>   {
>>    return(cast(typeof(func))cast(void*)this)(args);
>>   }
>>  }
>>  return &((cast(S*)cast(void*)&func).callMe);
>> }
>>}
>>
>>I'd have to play with it but the same thing could be done for a dynamic 
>>pointer just with a few things moved around.
>>
>>
>>Ohh, I'd so fire anyone who tried to get me to pay them for writing that.
> 
> 
> Error: can't convert from void* to a function pointer.  Oh well. 
> 
> 

OK, I've tested this one on 0.177
(Yes, I need to update this system :-b)


R delegate(Args) ToDelegate(R, Args...)(R function(Args) func)
{
  struct S
  {
   void callMe(Args args)
   {
    return (cast(R function(Args))cast(void*)this)(args);
   }
  }
  return &((cast(S*)cast(void*)func).callMe);
}