null references redux + Looney Tunes

[downs]

bearophile wrote:
> Denis Koroskin:
> 
>> I don't see any reason why if (someComplexNumber) { ... } should be a  
> valid code, it hardly makes any sense for me.<
> 
> In general I think adding a boolean-evaluation standard method to D can be positive and handy and not that bug-prone.
> But complex numbers are FP, so you usually test if they are close to zero (test of exactly zero can be useful to know if a value was not changed, etc). So I agree with you that for complex numbers such boolarn-eveluation method isn't very useful.
> Once D has such operator, it can be defined for library complex numbers too, but probably it will not be used often.
> It's useful if you want to write generic code, so if in a templated function you use if(x){... it will work with integers, double, complex values, etc, without special casing.
> 

I'm not buying that. What kind of function would that be? I can't imagine a need for this.