Manifest constants (was const again)

[Simen Kjaeraas]

Oskar Linde wrote:
> Janice Caron wrote:
>>> alias str = "str";
>>  I'm uncomfortable with having
>>      alias dest = source;
>>  in one circumstance, but
>>      alias source dest;
>>  in others. I would find that confusing.
>
> Then just make the two forms equivalent and maybe depreciate the second  
> one with time.
>
> alias pi = 3.14;
> alias toString = to!(string);
>
> Why would this be a problem?
>

Because it breaks with the C/C++ heritage, methinks.

Anyways, is there a reason why we can't use 'alias 3.14 pi;'?