Re: Is it possible to implement operators as ordinary functions?

[data pulverizer via Digitalmars-d-learn]

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!

Re: Is it possible to implement operators as ordinary functions?

[Adam D. Ruppe via Digitalmars-d-learn]

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.

Is it possible to implement operators as ordinary functions?

[data pulverizer via Digitalmars-d-learn]

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);
}

```