Operator overloading or alternatives to expression templates

[Martin Nowak via Digitalmars-d]

On 09/13/2015 07:16 PM, Daniel N wrote:
> 
> Could you try this?
> 
> int opCmp(Foo rhs)
> {
>   return (id > rhs.id) - (id < rhs.id);
> }

That's not the point, opCmp requires twice as many comparisons as needed
for <. If they are more expansive, e.g. string comparison, your trick
won't work.