let r: Result<Foo, Foo> = Ok(Foo);
assert!(r.is_ok());
+ // test ok with some messages
+ let r: Result<Foo, DebugFoo> = Ok(Foo);
+ assert!(r.is_ok(), "oops");
+
+ // test ok with unit error
+ let r: Result<Foo, ()> = Ok(Foo);
+ assert!(r.is_ok());
+
// test temporary ok
fn get_ok() -> Result<Foo, DebugFoo> {
Ok(Foo)
let r: Result<Foo, Foo> = Err(Foo);
assert!(r.is_err());
}
+
+#[allow(dead_code)]
+fn issue9450() {
+ let res: Result<i32, i32> = Ok(1);
+ res.unwrap_err();
+}