From 41b54360ff917a261d3f6f752e3c2c51edada773 Mon Sep 17 00:00:00 2001
From: Max Verevkin <maxxverrr@gmail.com>
Date: Sun, 3 Apr 2022 22:52:12 +0300
Subject: small refactoring

---
 src/ord_adaptor.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/ord_adaptor.rs

(limited to 'src/ord_adaptor.rs')

diff --git a/src/ord_adaptor.rs b/src/ord_adaptor.rs
new file mode 100644
index 0000000..c7c6763
--- /dev/null
+++ b/src/ord_adaptor.rs
@@ -0,0 +1,18 @@
+//! Newtypes to use floating numbers in sorting algs
+
+use std::cmp::Ordering;
+
+/// Defaults to `Ordering::Less` if the wrapped value can't be compared
+#[derive(PartialEq, PartialOrd)]
+#[repr(transparent)]
+pub struct DefaultLess<T: PartialOrd>(pub T);
+
+// Not ideal, but `Ord` requires `Eq`, so...
+impl<T: PartialOrd> Eq for DefaultLess<T> {}
+
+#[allow(clippy::derive_ord_xor_partial_ord)]
+impl<T: PartialOrd> Ord for DefaultLess<T> {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.partial_cmp(other).unwrap_or(Ordering::Less)
+    }
+}
-- 
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