rust has core, alloc and std instead of libc
rust: + passing arrays to functions. what is passed? reference ot first? length separately? + repeating an array n times
linked lists/arrays in rust + concatenation + slice/filter + insert + pop + traverse + map + sort + reverse
ranges in rust. can use ".."
impl trait
type
structs (access using ::) tuple structs enum
pub keyword (makes thing visible to other files?)
rust generics rust functional, inc lambda. partial application. currying rust oop h3 rust parallel h3