[Blog post] Operator overloading for structs in D

[Minas Mina via Digitalmars-d-announce]

On Thursday, 2 June 2016 at 18:55:36 UTC, Steven Schveighoffer 
wrote:
> On 6/2/16 2:34 PM, Minas Mina wrote:
>> [...]
>
> Cool. You missed one very significant thing. That is using 
> mixins to take advantage of the operator string.
>
> For example, opOpAssign can be done in one step:
>
> ref Rational opOpAssign(string op)(auto ref Rational r)
>     if(op == "+" || op == "-" || op == "/" || op == "*")
> {
>     mixin("auto tmp = this " ~ op ~ " r;");
>     _n = tmp.n;
>     _d = tmp.d;
>     return this;
> }
>
> This is the whole reason, BTW, that operator overloads were 
> changed from the original D1 style versions.
>
> Some more examples of your Rational type in action would be 
> good too.
>
> -Steve

Thanks for the feedback! I will update the post tomorrow or on 
Saturday.