//: # A basic Rust Example
//:
//: This file will showcase the following function:
//:
//> ____
pubfnstrlen<'a>(s:&'astr)->usize{
s.len()}//:
//{
#[test]fntest_strlen(){//}
//: This works as expected:
//:
assert_eq!(strlen("Hello world!"),12);}//fnmain(){}//