src/test/ui/str-concat.rs

   1 // run-pass
   2
   3 pub fn main() {
   4     let a: String = "hello".to_string();
   5     let b: String = "world".to_string();
   6     let s: String = format!("{}{}", a, b);
   7     println!("{}", s.clone());
   8     assert_eq!(s.as_bytes()[9], 'd' as u8);
   9 }