Casting Pointers?

[Dicebot via Digitalmars-d]

On Thursday, 12 May 2016 at 09:33:54 UTC, Dicebot wrote:
> On Thursday, 12 May 2016 at 08:41:25 UTC, John Burton wrote:
>> Is this legal / valid in D and if not what is the appropriate 
>> way to efficiently access data like this?
>
> We rely on this cast to be legal and well-defined in a lot of 
> Sociomantic code, banning would be a real disaster :X

(most common case is casting between `char[]` and `struct S { 
char[]; }`)