templates

[bearophile via Digitalmars-d-learn]

ddos:

> one possible solution would be a static if, like this:
>
> TVector opBinary(string op)(TVector rhs)
> {
>   static if(n == 4)
>   {
>     // fast impl for n==4
>   }
>   else
>   {
>     // old impl
>   }
> }
>
> but i'd like to avoid this since it makes the code very ugly to 
> read
>
> any suggestions :) ?

You can add a template constraint and write two functions:

TVector opBinary(string op)(TVector rhs) if(n == 4) {...

TVector opBinary(string op)(TVector rhs) if(n != 4) {...}

Bye,
bearophile