Merge pull request #545 from rustaceanrob/26-3-6-cp-ord

Implement ordinality traits for `HeaderCheckpoint`

Author: rustaceanrob

src/chain/checkpoints.rs

@@ -5,7 +5,7 @@ use bitcoin::{constants::genesis_block, params::Params, BlockHash};
 type Height = u32;
 
 /// A known block hash in the chain of most work.
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub struct HeaderCheckpoint {
     /// The index of the block hash.
     pub height: Height,
@@ -45,6 +45,18 @@ impl HeaderCheckpoint {
     }
 }
 
+impl std::cmp::PartialOrd for HeaderCheckpoint {
+    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl std::cmp::Ord for HeaderCheckpoint {
+    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
+        self.height.cmp(&other.height)
+    }
+}
+
 impl From<(u32, BlockHash)> for HeaderCheckpoint {
     fn from(value: (u32, BlockHash)) -> Self {
         HeaderCheckpoint::new(value.0, value.1)