On 4/16/14 5:39 PM, Frank Huang wrote:
Second somewhat related question: why can't I write this?fn main() { let mut v = Vec::new(); v.push(10); // get last item let n = v.get_mut(v.len()-1); println!("item = {}", *n); } For this program, the compiler complains at the line with v.get_mut that "cannot borrow `v` as immutable because is is also borrowed as mutable". Is there another way to retrieve, mutably, the last element of a vector? (this is relevant if I want to have a vector of Handles, since Handle::recv() requires &mut self)
Unnest it and assign "v.len()" to a temporary first. This is a borrow check annoyance that will probably be fixed at some point. In the meantime we should probably have a better error message.
Patrick _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
