Re: [rust-dev] Adding "else" on "for" loops, like Python

[Simon Sapin]

Le 10/08/2013 15:10, Simon Sapin a écrit :
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.


Typical usage is finding an element in a container and have a 
default/fallback:

for element is container.iter() {
    if is_relevant(element) {
        do_something_with(element);
        break
    }
} else {
    not_found()
}

--
Simon Sapin
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