mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 15:54:15 +00:00
26 lines
599 B
Rust
26 lines
599 B
Rust
struct Clam {
|
|
x: Box<isize>,
|
|
y: Box<isize>,
|
|
}
|
|
|
|
|
|
|
|
struct Fish {
|
|
a: Box<isize>,
|
|
}
|
|
|
|
fn main() {
|
|
let a: Clam = Clam{ x: Box::new(1), y: Box::new(2) };
|
|
let b: Clam = Clam{ x: Box::new(10), y: Box::new(20) };
|
|
let z: isize = a.x + b.y;
|
|
//~^ ERROR cannot add `Box<isize>` to `Box<isize>`
|
|
println!("{}", z);
|
|
assert_eq!(z, 21);
|
|
let forty: Fish = Fish{ a: Box::new(40) };
|
|
let two: Fish = Fish{ a: Box::new(2) };
|
|
let answer: isize = forty.a + two.a;
|
|
//~^ ERROR cannot add `Box<isize>` to `Box<isize>`
|
|
println!("{}", answer);
|
|
assert_eq!(answer, 42);
|
|
}
|