From 4094865116fb4c8c21ccfd0d03312a9e3a9dd926 Mon Sep 17 00:00:00 2001
From: Dirkjan Ochtman <dirkjan@ochtman.nl>
Date: Sun, 23 Mar 2025 09:53:38 +0100
Subject: [PATCH] Remove Not impls for WeekdaySet and Weekday

---
 src/weekday_set.rs | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/src/weekday_set.rs b/src/weekday_set.rs
index 159408f3..39568827 100644
--- a/src/weekday_set.rs
+++ b/src/weekday_set.rs
@@ -1,7 +1,6 @@
 use core::{
     fmt::{self, Debug},
     iter::FusedIterator,
-    ops::Not,
 };
 
 use crate::Weekday;
@@ -419,28 +418,12 @@ impl fmt::Display for WeekdaySet {
     }
 }
 
-impl Not for WeekdaySet {
-    type Output = Self;
-
-    fn not(self) -> Self::Output {
-        Self(self.0 ^ 0b0111_1111)
-    }
-}
-
 impl FromIterator<Weekday> for WeekdaySet {
     fn from_iter<T: IntoIterator<Item = Weekday>>(iter: T) -> Self {
         iter.into_iter().map(Self::single).fold(Self::EMPTY, Self::union)
     }
 }
 
-impl Not for Weekday {
-    type Output = WeekdaySet;
-
-    fn not(self) -> Self::Output {
-        !WeekdaySet::single(self)
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use crate::Weekday;
@@ -475,13 +458,6 @@ mod tests {
         }
     }
 
-    #[test]
-    fn not_operation_preserves_8th_bit_invariant() {
-        for days in WeekdaySet::iter_all() {
-            assert_8th_bit_invariant(!days);
-        }
-    }
-
     /// Test `split_at` on all possible arguments.
     #[test]
     fn split_at_is_equivalent_to_iterating() {