UFCS

[via Digitalmars-d-learn]

On Saturday, 16 May 2015 at 05:56:26 UTC, Jonathan M Davis wrote:
> On Friday, May 15, 2015 21:31:35 Manfred Nowak via 
> Digitalmars-d-learn wrote:
>> The following gives:
>> "Error: 'a += b' is not a scalar, it is a C"
>> although UFCS should engage.
>>
>> -manfred
>>
>> class C{}
>> int main(){
>>   void opOpAssign( string op)( C a, C b){
>>   }
>>   C a, b;
>>   a+= b;
>> }
>
> Overloaded operators have to be defined as part of the type 
> that they're
> overloading the operator for, and UFCS is only ever used with 
> the . syntax.
> So, this isn't a bug.

Besides, UFCS doesn't work with local functions either; 
`opOpAssign()` would need to be moved out of `main()`.