SpecFromElem
()
While a better approach would be to implement it for all ZSTs which are `Copy` and have trivial `Clone`, the last property cannot be detected for now. Signed-off-by: Petr Portnov <me@progrm-jarvis.ru>
rust_2018_idioms
IsZero
Vec
==
impl Extend<&'a T> for Vec<T, A>