Operator overloading

[Dmitry Olshansky]

On 20.04.2012 19:14, Xan wrote:
> On Friday, 20 April 2012 at 14:18:37 UTC, Dmitry Olshansky wrote:
>> On 20.04.2012 18:10, Xan wrote:
>>> What fails if I want to define this:
>>>
>>> Algorisme!(T,V) opBinary(string op)(Algorisme!(T,U) alg) {
>>
>> Algorisme!(T,V) opBinary(string op, T)(Algorisme!(T,U) alg) {
>>
>> You need to name what T is and that is *sometype*. Anyway I suggest
>> getting a decent book (TDPL).
>>
>>> if (op=="*") {
>>
>> static if is conceptually and technically better here.
>
>
> Thanks, Dmitry, for your suggestions, but it does not work too:
>
> $ gdmd-4.6 algorisme
> algorisme.d:54: Error: 'alg' is not of arithmetic type, it is a
> algorisme.Algorisme!(int,int).Algorisme
> algorisme.d:54: Error: 'alg2' is not of arithmetic type, it is a
> algorisme.Algorisme!(int,int).Algorisme
>
>
> I update de gist: https://gist.github.com/2429005
>
> By the other hand, is there any way to put the definition of operator *
> in the class (not out like I have now)?
>

it should be inside the class. Why would you put it outside and hope it 
work? What 'this' can refer to in free function?

Please read spec at the very least.
http://dlang.org/operatoroverloading.html

>
> Thanks,
> Xan.


-- 
Dmitry Olshansky