On 8/13/21 4:23 PM, Marcone wrote:
> string x = "Hello World!";
> writeln(x[x.indexOf("e")..x.indexOf("r")]);I don't see the usefulness and there are the following problems with it:- Not an algorithmic complexity issue but it sounds to me like a pessimization to go through the elements in linear fashion, obtain indexes and then iterate between the indexes again.
- This approach requires random access, which only a subset of collections provide.
- The semantics of the second index is not clear. What is the intent when we say "from 'f' to 'n'" in the string "confusing"? Is it an error because the indexes 3..2 would be illegal? Or did we mean second 'n' in the string?
On the other hand, the programmer can build any semantic with the existing range algorithms. And that would work even with InputRanges.
You didn't ask but sorry, this feature is not for me. :) Ali
