Make date hash

ThomasdenH · Apr 17, 2019 · ff8b3ef · ff8b3ef
1 parent 6f49ffe
commit ff8b3ef
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/types/date.rs b/src/types/date.rs
@@ -436,7 +436,7 @@ lazy_static! {
 }
 
 /// An OpenTTD date.
-#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd)]
+#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
 pub struct Date(u32);
 
 impl std::fmt::Display for Date {