On Friday, 14 May 2021 at 14:14:03 UTC, Steven Schveighoffer
wrote:
On 5/13/21 11:49 PM, Jack wrote:
[...]
Just slice the `a`, appropriately. You have to translate the
indexes back into the original array.
```d
auto opSlice(size_t start, size_t end)
{
return typeof(this)(a[$ - end .. $ - start]);
}
```
You should also define `length`, `save`, `opIndex`, and
`opDollar` so that it fits in the range hierarchy as a proper
random-access range.
But I question whether you shouldn't just use `std.range.retro`
directly? It does all this for you:
```d
// inside A
auto retro() {
import std.range : retro;
return arr.retro;
}
```
-Steve
much easier, I'll be just using the one from std.range. Thanks!
