On 8/10/13 7:10 AM, Simon Sapin wrote:
> Hi,
>
> Now that the for loop is based on external iterators, can we reconsider
> "for-else"?
>
> Proposal:
>
> for i in iter {
> // ...
> } else {
> // ...
> }
>
> The optional else block is executed when the for loop stops without
> exhausting the iterator, ie. when "break" is used.
> I spent quite some time in Python, delving into as much of the language as I could, and for-else was not something I used. It actually caused me a bug due to a mis-indented if block in the for loop. I would suggest that perhaps for-else belongs as a macro construct for a while to test adoption; if it proves useful and strongly adhered to, it could be moved into the core language? -- Regards, Paul
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
