Rust lifetimes and collections [OT]

[Vladimir Panteleev via Digitalmars-d]

On Wednesday, 19 November 2014 at 17:58:01 UTC, Andrei 
Alexandrescu wrote:
> On 11/19/14 8:54 AM, bearophile wrote:
>>
>> This is nice:
>>
>>> fn split_at_mut(&mut self, mid: uint) -> (&mut [T], &mut [T]);
>>
>> Bye,
>> bearophile
>
> Why did this redditor say it's a horrific hack? 
> http://www.reddit.com/r/programming/comments/2mqyd3/rust_lifetimes_and_collections/cm6yj7b

Probably because it performs extra work (which may or may not be 
optimized out) just so it fits in Rust's safety model.