Iterator over a Vec of tuples, partially mutable

1

Hi all.

I'm trying to write an iterator that yields references to sequence of tuples where only one field of the tuple is mutable.

struct Thing<A, B, C> {
    content: Vec<(A, B, C)>
}

What I want is essentially to write a method for Thing that returns an Iterator over content whose Item is something like &(&A, &B, &mut C). The caller can use read-only the first and the second field of the tuple and then modify, in-place inside the vector, the third field of each tuple yielded.

I hope I explained myself :slight_smile:

Is it feasable? Or... I'd better do something else?

Thanks for any suggestion.

2

Sure.

1 Like
3

Lightining fast! I learned something. Thanks a lot!