string <-> null/bool implicit conversion

[Timon Gehr via Digitalmars-d]

On 08/22/2015 12:04 AM, Jonathan M Davis wrote:
> On Friday, 21 August 2015 at 21:13:35 UTC, David Nadlinger wrote:
>> On Friday, 21 August 2015 at 20:01:21 UTC, Vladimir Panteleev wrote:
>>> "This warning almost doesn't break any code!"
>>
>> It indeed doesn't break almost any code. Yours is quite the outlier.
>
> In general, it gets a bit interesting when a feature is useful if used
> correctly and gets used correctly by experts but generally screws up
> most programmers. For instance, the comma operator would be a case of
> that. If used correctly, it can be really useful, but it's so easy to
> misuse that it's generally considered bad practice to use it. And yet,
> I'm sure that there are folks out there who love it and use it correctly
> on a regular basis. That's not the norm though.
>
> - Jonathan M Davis

For the comma operator, I think it's pretty clear that the usage of ',' 
to separate components of a tuple would be more useful.

(With L-T-R evaluation, replacing usages of the comma operator is easy, 
e.g. 'a,b,c' becomes '(a,b,c)[$-1]', not to speak about the delegate 
option.)