[rust-dev] troubles to use vec::filter() when pattern matching a vector

[Peter Ronnquist]

I'm having troubles to use vec::filter() when pattern matching a vector:

fn main() {

    let objs = ~[1, 3, 2];

    fn isClose(a: int, b: int)-> bool {
        if (a-b <1) {true} else {false}
    }
    match objs {
        // Construct new integer vector that contains integers that
are similar to the head.
        [head, ..tail] => vec::filter( tail, |obj| isClose(head, *obj))  ,
        [] => ~[]
    };
}

rustc tail_test.rs
tail_test.rs:11:39: 11:43 error: mismatched types: expected `~[<V7>]`
but found `&/[<VI2>]` ([] storage differs: expected ~ but found &)
tail_test.rs:11         [head, ..tail] => vec::filter( tail, |obj|
isClose(head, *obj))  ,
                                                       ^~~~
$ rustc -v
rustc 0.6 (b26d434 2013-02-24 10:57:16 -0800)
host: x86_64-unknown-linux-gnu

It seems like tail is a & type and not a ~ that I expected.
Any thoughts on this?

Thanks in advance,
Peter
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