From aea4a73f134a68da740161f54a0189551245590e Mon Sep 17 00:00:00 2001
From: Armin Penz <Armin.Penz@student.uibk.ac.at>
Date: Thu, 17 Sep 2026 10:58:05 +0200
Subject: [PATCH 1/2] feat: enum.hpp - add operator~ and operator&=

---
 CHANGELOG.md          |  1 +
 include/mstd/enum.hpp | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44e6498..a384477 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file.
 ### Enum
 
 - more clang-tidy fix for enum type
+- add operator~ and operator&=
 
 ## Next Release
 
diff --git a/include/mstd/enum.hpp b/include/mstd/enum.hpp
index 9c2dbc2..dabceed 100644
--- a/include/mstd/enum.hpp
+++ b/include/mstd/enum.hpp
@@ -134,12 +134,18 @@
             static_cast<Underlying>(lhs) | static_cast<Underlying>(rhs)       \
         );                                                                    \
     }                                                                         \
+                                                                              \
     inline constexpr EnumName& operator|=(EnumName& lhs, EnumName rhs)        \
     {                                                                         \
         lhs = lhs | rhs;                                                      \
         return lhs;                                                           \
     }                                                                         \
                                                                               \
+    inline constexpr EnumName operator~(EnumName value)                       \
+    {                                                                         \
+        return static_cast<EnumName>(~static_cast<Underlying>(value));        \
+    }                                                                         \
+                                                                              \
     struct EnumName##FlagTest                                                 \
     {                                                                         \
         Underlying value;                                                     \
@@ -161,6 +167,12 @@
         )};                                                                   \
     }                                                                         \
                                                                               \
+    inline constexpr EnumName& operator&=(EnumName& lhs, EnumName rhs)        \
+    {                                                                         \
+        lhs = lhs & rhs;                                                      \
+        return lhs;                                                           \
+    }                                                                         \
+                                                                              \
     inline constexpr bool operator!(EnumName lhs)                             \
     {                                                                         \
         return !static_cast<Underlying>(lhs);                                 \

From a26ea5f7b93b070a7eb116d7a46db0d94abbf2c1 Mon Sep 17 00:00:00 2001
From: Armin Penz <armin.penz@student.uibk.ac.at>
Date: Fri, 18 Sep 2026 07:12:29 +0200
Subject: [PATCH 2/2] fix: Changelog.md by moving "Next Release" back on top

---
 CHANGELOG.md | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a384477..0c376c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,16 +2,19 @@
 
 All notable changes to this project will be documented in this file.
 
+## Next Release
+
 ### Enum
 
-- more clang-tidy fix for enum type
 - add operator~ and operator&=
 
-## Next Release
-
 <!-- insertion marker -->
 ## [0.2.4](https://github.com/repo/owner/releases/tag/0.2.4) - 2026-09-16
 
+### Enum
+
+- more clang-tidy fix for enum type
+
 ## [0.2.3](https://github.com/repo/owner/releases/tag/0.2.3) - 2026-08-26
 
 ### Types