1 files changed, 12 insertions(+), 1 deletions(-)

M codes/eoa_lib/src/comparison/mod.rs

@@ 1,8 1,11 @@
 pub trait BetterThanOperator<T> {
     fn better_than(self: &Self, a: &T, b: &T) -> bool;
+    fn equal(self: &Self, a: &T, b: &T) -> bool;
 
     fn ordering(&self, a: &T, b: &T) -> std::cmp::Ordering {
-        if self.better_than(a, b) {
+        if self.equal(a, b) {
+            std::cmp::Ordering::Equal
+        } else if self.better_than(a, b) {
             std::cmp::Ordering::Less
         } else {
             std::cmp::Ordering::Greater


@@ 23,6 26,10 @@ impl<T> BetterThanOperator<T> for MinimizingOperator
     fn better_than(self: &Self, a: &T, b: &T) -> bool {
         a < b
     }
+
+    fn equal(self: &Self, a: &T, b: &T) -> bool {
+        *a == *b
+    }
 }
 
 pub struct MaximizingOperator;


@@ 38,4 45,8 @@ impl<T> BetterThanOperator<T> for MaximizingOperator
     fn better_than(self: &Self, a: &T, b: &T) -> bool {
         a > b
     }
+
+    fn equal(self: &Self, a: &T, b: &T) -> bool {
+        *a == *b
+    }
 }