• solidstate1991 (19/19) Oct 23 2021 Let's say I have something like this:
• Adam D Ruppe (4/7) Oct 23 2021 You can't with ref, you will need to do separate getter and

solidstate1991 <laszloszeremi outlook.com> writes:

Let's say I have something like this:

```
struct Foo {
     int[] bar;
     this() {
         bar.length = 10;
     }
     ref int opIndex(size_t i) {
         return bar[i];
     }
}
void main() {
     Foo f = Foo();
     f[3] = 15;
}

```
If I wanted to check whether the assigned value is within a 
range, and I want to throw a certain exception if outside of it, 
then how I can do that?

Adam D Ruppe <destructionator gmail.com> writes:

On Saturday, 23 October 2021 at 20:14:25 UTC, solidstate1991 
wrote:
 If I wanted to check whether the assigned value is within a 
 range, and I want to throw a certain exception if outside of 
 it, then how I can do that?

You can't with ref, you will need to do separate getter and 
setter properties for that.