Thread overview
Is it possible to implement operators as ordinary functions?
May 19, 2020
data pulverizer
May 19, 2020
Adam D. Ruppe
May 19, 2020
data pulverizer
May 19, 2020
I was wandering if it possible to implement operators as ordinary functions instead of as member functions of a class or struct for example something like this:

```
import std.stdio: writeln;

struct Int{
  int data = 0;
}

Int opBinary(string op)(Int x1, Int x2)
{
  static if((op == "+") || (op == "-") || (op == "*") || (op == "/"))
  {
    int ret;
    mixin("ret = x1.data " ~ op ~ " x2.data");
    return ret;
  }else{
    static assert(0, "Operator unknown.");
  }
}

void main()
{
  Int x = Int(1);
  Int y = Int(2);
  writeln("Output: ", x + y);
}

```
May 19, 2020
On Tuesday, 19 May 2020 at 02:36:24 UTC, data pulverizer wrote:
> I was wandering if it possible to implement operators as ordinary functions instead of as member functions of a class or struct for example something like this:

nope, it must be done as member functions.
May 19, 2020
On Tuesday, 19 May 2020 at 02:42:22 UTC, Adam D. Ruppe wrote:
> On Tuesday, 19 May 2020 at 02:36:24 UTC, data pulverizer wrote:
>> I was wandering if it possible to implement operators as ordinary functions instead of as member functions of a class or struct for example something like this:
>
> nope, it must be done as member functions.

Thanks!