The problem with the value that is returned from the condition in `static if`. Bug or feature?

[via Digitalmars-d-learn]

On Sunday, 7 June 2015 at 03:04:38 UTC, lobo wrote:
> On Sunday, 7 June 2015 at 03:01:15 UTC, lobo wrote:
>> On Saturday, 6 June 2015 at 17:06:37 UTC, Dennis Ritchie wrote:
>>> [snip]
>>
>> `static if(5 in hash) {}` will not work because (5 in hash) 
>> returns a pointer to the value or null if the key oesn't exist.
>>
>> bye,
>> lobo
>
> just to be clear, you cannot have a pointer to anything at 
> compile time because it doesn't exist and IMO changing 'in' to 
> behave differently for static-if compared  runtime if would be 
> bad.

Not true:

     immutable y = 1;
     enum x = &y;

You can even do pointer arithmetics:

     auto foo() {
         auto x = [1,2,3,4];
         auto y = &x[1];
         return y[2];
     }
     pragma(msg, foo());