13 lines
329 B
Rust
13 lines
329 B
Rust
fn main() {
|
|
fn f() -> Option<i32> {
|
|
Some("fffffffsssssssssddddssssfffffddddff").map(|s| s).map(|s| s.to_string()).map(|res| {
|
|
match Some(res) {
|
|
Some(ref s) if s == "" => 41,
|
|
Some(_) => 42,
|
|
_ => 43,
|
|
}
|
|
})
|
|
}
|
|
println!("{:?}", f())
|
|
}
|