Disallow arrays as pointers

[Don]

On 02.11.2011 22:19, deadalnix wrote:
> Le 31/10/2011 21:25, Timon Gehr a écrit :
>> On 10/31/2011 08:34 PM, bearophile wrote:
>>> I don't see the need to accept this cast, because we have said that D
>>> arrays are not pointers, and allowing the array to pointer cast means
>>> introducing/leaving an useless special case, and in practice this
>>> special case is not useful because arrays have the ptr property:
>>>
>>
>> extern(C) void foo(char* str);
>> foo(cast(char*)"hello");
>>
>>
>>>
>>> struct Foo {
>>> int* p;
>>> size_t n;
>>> }
>>> void main() {
>>> Foo f;
>>> auto x = f.ptr; // OK
>>> }
>>>
>>
>> Actually compile error :o).
>>
>>>
>>> So I think cast(int*)a1 should be forbidden.
>>
>> -1. I don't really see any point in disallowing it. It is an explicit
>> cast, not some kind of bug prone implicit behaviour.
>>
>
> Well, because the ptr property is done for that. Actually, D ABI says
> that the struct representing the array begins with length, then prt, so
> the result isn't obvious from a low level perspective, which is kinda
> sad when it goes to pointer manipulation.

The fix has already been implemented in git master. The bug report is 
closed.
There's no point commenting on this topic further.