+#[derive(Clone, Copy, Eq, PartialEq)]
+pub struct Suit(u8);
+
+#[derive(Clone, Copy, Eq, PartialEq)]
+pub struct Card(u8);
+impl Card {
+ #[must_use]
+ pub fn rank(&self) -> Rank {
+ Rank(self.0 >> 2)
+ }
+ #[must_use]
+ pub fn suit(&self) -> Suit {
+ Suit(self.0 & 3)
+ }
+}
+
+#[must_use]
+pub fn deck() -> Vec<Card> {
+ (0..NUM_CARDS).map(Card).collect()
+}
+