I am creating a specialized bit pattern (secretly represented as a uint) as a struct S, but want to avoid `alias this` to maintain encapsulation excepting where I overtly say. Specifically, I want to avoid making arithmetic and inequalities available for S.

I have written opEquals to compare an S to a uint.

How do I write code to compare a uint to an S?

On 07/31/2019 01:03 PM, NonNull wrote:
> I am creating a specialized bit pattern (secretly represented as a uint) as a struct S, but want to avoid `alias this` to maintain encapsulation excepting where I overtly say. Specifically, I want to avoid making arithmetic and inequalities available for S.
> 
> I have written opEquals to compare an S to a uint.
> 
> How do I write code to compare a uint to an S?
> 

I didn't know that it works both ways already:

import std.stdio;

struct S {
  bool opEquals(uint u) {
    writeln("called");
    return true;
  }
}

void main() {
  S s;
  s == 7;
  7 == s;
}

There are two "called"s printed...

Ali