Replaced macos-13 with macos-15 in GitHub Actions.

The macos-13 image is retired, macos-15 is now available.

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-# Copyright 2021-2024 Andrey Semashev
+# Copyright 2021-2025 Andrey Semashev
 #
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
@@ -33,14 +33,6 @@ jobs:
       matrix:
         include:
           # Linux, gcc
-          - toolset: gcc-4.6
-            cxxstd: "0x"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - g++-4.6
-            sources:
-              - "ppa:ubuntu-toolchain-r/test"
           - toolset: gcc-4.7
             cxxstd: "11"
             os: ubuntu-latest
@@ -85,12 +77,14 @@ jobs:
               - g++-8
           - toolset: gcc-9
             cxxstd: "11,14,17,2a"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - g++-9
           - toolset: gcc-10
             cxxstd: "11,14,17,20"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - g++-10
           - toolset: gcc-11
@@ -105,18 +99,28 @@ jobs:
               - g++-12
           - toolset: gcc-13
             cxxstd: "11,14,17,20,23"
-            os: ubuntu-latest
-            container: ubuntu:23.04
+            os: ubuntu-24.04
             install:
               - g++-13
+          - toolset: gcc-14
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-24.04
+            install:
+              - g++-14
+          - toolset: gcc-15
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-latest
+            container: ubuntu:25.04
+            install:
+              - g++-15
           - name: UBSAN
-            toolset: gcc-11
+            toolset: gcc-13
             cxxstd: "11,14,17,20,23"
             ubsan: 1
             build_variant: debug
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
-              - g++-11
+              - g++-13
 
           # Linux, clang
           - toolset: clang
@@ -195,13 +199,15 @@ jobs:
           - toolset: clang
             compiler: clang++-9
             cxxstd: "11,14,17,2a"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - clang-9
           - toolset: clang
             compiler: clang++-10
             cxxstd: "11,14,17,20"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - clang-10
           - toolset: clang
@@ -245,60 +251,70 @@ jobs:
           - toolset: clang
             compiler: clang++-16
             cxxstd: "11,14,17,20,2b"
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
               - clang-16
-            sources:
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-16 main"
-            source_keys:
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+              - g++-11
+            gcc_toolchain: 11
           - toolset: clang
             compiler: clang++-17
             cxxstd: "11,14,17,20,23"
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
               - clang-17
-            sources:
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-17 main"
-            source_keys:
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+              - g++-11
+            gcc_toolchain: 11
           - toolset: clang
-            compiler: clang++-17
-            cxxstd: "11,14,17,20,23"
-            os: ubuntu-22.04
+            compiler: clang++-18
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-24.04
             install:
-              - clang-17
-              - libc++-17-dev
-              - libc++abi-17-dev
-            sources:
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-17 main"
-            source_keys:
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+              - clang-18
+              - g++-13
+          - toolset: clang
+            compiler: clang++-19
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-24.04
+            install:
+              - clang-19
+          - toolset: clang
+            compiler: clang++-20
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-latest
+            container: ubuntu:25.04
+            install:
+              - clang-20
+          - toolset: clang
+            compiler: clang++-20
+            cxxstd: "11,14,17,20,23,26"
             cxxflags: -stdlib=libc++
             linkflags: -stdlib=libc++
+            os: ubuntu-latest
+            container: ubuntu:25.04
+            install:
+              - clang-20
+              - libc++-20-dev
+              - libc++abi-20-dev
           - name: UBSAN
             toolset: clang
-            compiler: clang++-15
-            cxxstd: "11,14,17,20,2b"
+            compiler: clang++-18
+            cxxstd: "11,14,17,20,23,26"
             cxxflags: -stdlib=libc++
             linkflags: -stdlib=libc++
             ubsan: 1
             build_variant: debug
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
-              - clang-15
-              - libc++-15-dev
-              - libc++abi-15-dev
+              - clang-18
+              - libc++-18-dev
+              - libc++abi-18-dev
 
-          - toolset: clang
-            cxxstd: "11,14,17,20,2b"
-            os: macos-12
-          - toolset: clang
-            cxxstd: "11,14,17,20,2b"
-            os: macos-13
           - toolset: clang
             cxxstd: "11,14,17,20,2b"
             os: macos-14
+          - toolset: clang
+            cxxstd: "11,14,17,20,23"
+            os: macos-15
 
     timeout-minutes: 15
     runs-on: ${{matrix.os}}
@@ -516,14 +532,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - toolset: msvc-14.0
-            cxxstd: "14"
-            addrmd: 32,64
-            os: windows-2019
-          - toolset: msvc-14.2
-            cxxstd: "14,17,20,latest"
-            addrmd: 32,64
-            os: windows-2019
           - toolset: msvc-14.3
             cxxstd: "14,17,20,latest"
             addrmd: 32,64
@@ -533,9 +541,9 @@ jobs:
             addrmd: 32,64
             os: windows-2022
           - toolset: gcc
-            cxxstd: "11,14,17,2a"
+            cxxstd: "11,14,17,20,23"
             addrmd: 64
-            os: windows-2019
+            os: windows-2022
 
     timeout-minutes: 15
     runs-on: ${{matrix.os}}

appveyor.yml

@@ -0,0 +1,88 @@
+# Copyright 2025 Andrey Semashev
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+version: 1.0.{build}-{branch}
+
+shallow_clone: true
+
+branches:
+  only:
+    - master
+    - develop
+    - /feature\/.*/
+
+environment:
+  matrix:
+    - TOOLSET: msvc-12.0
+      ADDRMD: 32,64
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - TOOLSET: msvc-14.0
+      ADDRMD: 32,64
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - TOOLSET: msvc-14.1
+      CXXSTD: 14,17,latest
+      ADDRMD: 32,64
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+    - TOOLSET: msvc-14.2
+      ADDRMD: 32,64
+      CXXSTD: 14,17,20,latest
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    - TOOLSET: msvc-14.3
+      ADDRMD: 32,64
+      CXXSTD: 14,17,20,latest
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
+    - TOOLSET: clang-win
+      ADDRMD: 32
+      CXXSTD: 14,17,latest
+      ENV_SCRIPT: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars32.bat
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    - TOOLSET: clang-win
+      ADDRMD: 64
+      CXXSTD: 14,17,latest
+      ENV_SCRIPT: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    - TOOLSET: gcc
+      CXXSTD: 11,14,1z
+      ADDPATH: C:\cygwin\bin;
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - TOOLSET: gcc
+      CXXSTD: 11,14,1z
+      ADDPATH: C:\cygwin64\bin;
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - TOOLSET: gcc
+      CXXSTD: 11,14,17
+      ADDPATH: C:\mingw-w64\x86_64-7.3.0-posix-seh-rt_v5-rev0\mingw64\bin;
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - TOOLSET: gcc
+      CXXSTD: 11,14,17,2a
+      ADDPATH: C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+
+install:
+  - set GIT_FETCH_JOBS=8
+  - set BOOST_BRANCH=develop
+  - if "%APPVEYOR_REPO_BRANCH%" == "master" set BOOST_BRANCH=master
+  - cd ..
+  - git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule init tools/build
+  - git submodule init tools/boostdep
+  - git submodule init tools/boost_install
+  - git submodule init libs/headers
+  - git submodule init libs/config
+  - git submodule update --jobs %GIT_FETCH_JOBS%
+  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\detail
+  - python tools/boostdep/depinst/depinst.py --git_args "--jobs %GIT_FETCH_JOBS%" detail
+  - cmd /c bootstrap
+  - b2 -d0 headers
+
+build: off
+
+test_script:
+  - PATH=%ADDPATH%%PATH%
+  - if not "%ENV_SCRIPT%" == "" call "%ENV_SCRIPT%"
+  - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
+  - if not "%ADDRMD%" == "" set ADDRMD=address-model=%ADDRMD%
+  - if not "%THREADING%" == "" set THREADING=threading=%THREADING%
+  - b2 -j %NUMBER_OF_PROCESSORS% libs/detail/test toolset=%TOOLSET% %CXXSTD% %ADDRMD% %THREADING%

include/boost/detail/bitmask.hpp

@@ -1,6 +1,7 @@
 //  boost/detail/bitmask.hpp  ------------------------------------------------//
 
 //  Copyright Beman Dawes 2006
+//  Copyright Andrey Semashev 2025
 
 //  Distributed under the Boost Software License, Version 1.0
 //  http://www.boost.org/LICENSE_1_0.txt
@@ -18,41 +19,73 @@
 #define BOOST_BITMASK_HPP
 
 #include <boost/config.hpp>
-#include <boost/cstdint.hpp>
 
-#define BOOST_BITMASK(Bitmask)                                            \
-                                                                          \
-  inline BOOST_CONSTEXPR Bitmask operator| (Bitmask x , Bitmask y )       \
-  { return static_cast<Bitmask>( static_cast<boost::int_least32_t>(x)     \
-      | static_cast<boost::int_least32_t>(y)); }                          \
-                                                                          \
-  inline BOOST_CONSTEXPR Bitmask operator& (Bitmask x , Bitmask y )       \
-  { return static_cast<Bitmask>( static_cast<boost::int_least32_t>(x)     \
-      & static_cast<boost::int_least32_t>(y)); }                          \
-                                                                          \
-  inline BOOST_CONSTEXPR Bitmask operator^ (Bitmask x , Bitmask y )       \
-  { return static_cast<Bitmask>( static_cast<boost::int_least32_t>(x)     \
-      ^ static_cast<boost::int_least32_t>(y)); }                          \
-                                                                          \
-  inline BOOST_CONSTEXPR Bitmask operator~ (Bitmask x )                   \
-  { return static_cast<Bitmask>(~static_cast<boost::int_least32_t>(x)); } \
-                                                                          \
-  inline Bitmask & operator&=(Bitmask& x , Bitmask y)                     \
-  { x = x & y ; return x ; }                                              \
-                                                                          \
-  inline Bitmask & operator|=(Bitmask& x , Bitmask y)                     \
-  { x = x | y ; return x ; }                                              \
-                                                                          \
-  inline Bitmask & operator^=(Bitmask& x , Bitmask y)                     \
-  { x = x ^ y ; return x ; }                                              \
-                                                                          \
-  /* Boost extensions to [bitmask.types] */                               \
-                                                                          \
-  inline BOOST_CONSTEXPR bool operator!(Bitmask x)                        \
-  { return !static_cast<int>(x); }                                        \
-                                                                          \
-  inline BOOST_CONSTEXPR bool bitmask_set(Bitmask x)                      \
+#if defined(__has_builtin)
+#if __has_builtin(__underlying_type)
+#define BOOST_BITMASK_DETAIL_UNDERLYING_TYPE(enum_type) __underlying_type(enum_type)
+#endif
+#endif
+
+#if !defined(BOOST_BITMASK_DETAIL_UNDERLYING_TYPE) && \
+    ((defined(BOOST_GCC_VERSION) && (BOOST_GCC_VERSION >= 40700)) || (defined(_MSC_VER) && (_MSC_VER >= 1700)))
+#define BOOST_BITMASK_DETAIL_UNDERLYING_TYPE(enum_type) __underlying_type(enum_type)
+#endif
+
+#if !defined(BOOST_BITMASK_DETAIL_UNDERLYING_TYPE)
+#include <type_traits>
+#endif
+
+namespace boost {
+namespace detail {
+namespace bitmask {
+
+#if defined(BOOST_BITMASK_DETAIL_UNDERLYING_TYPE)
+template< typename Enum >
+using underlying_type_t = BOOST_BITMASK_DETAIL_UNDERLYING_TYPE(Enum);
+#elif (BOOST_CXX_VERSION >= 201402)
+using std::underlying_type_t;
+#else
+template< typename Enum >
+using underlying_type_t = typename std::underlying_type< Enum >::type;
+#endif
+
+}}}
+
+#undef BOOST_BITMASK_DETAIL_UNDERLYING_TYPE
+
+#define BOOST_BITMASK(Bitmask)                                                                                  \
+                                                                                                                \
+  inline BOOST_CONSTEXPR Bitmask operator| (Bitmask x, Bitmask y) BOOST_NOEXCEPT                                \
+  { return static_cast< Bitmask >(static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(x)      \
+      | static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(y)); }                            \
+                                                                                                                \
+  inline BOOST_CONSTEXPR Bitmask operator& (Bitmask x, Bitmask y) BOOST_NOEXCEPT                                \
+  { return static_cast< Bitmask >(static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(x)      \
+      & static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(y)); }                            \
+                                                                                                                \
+  inline BOOST_CONSTEXPR Bitmask operator^ (Bitmask x, Bitmask y) BOOST_NOEXCEPT                                \
+  { return static_cast< Bitmask >(static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(x)      \
+      ^ static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(y)); }                            \
+                                                                                                                \
+  inline BOOST_CONSTEXPR Bitmask operator~ (Bitmask x) BOOST_NOEXCEPT                                           \
+  { return static_cast< Bitmask >(~static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(x)); } \
+                                                                                                                \
+  inline BOOST_CXX14_CONSTEXPR Bitmask& operator&=(Bitmask& x, Bitmask y) BOOST_NOEXCEPT                        \
+  { x = x & y; return x; }                                                                                      \
+                                                                                                                \
+  inline BOOST_CXX14_CONSTEXPR Bitmask& operator|=(Bitmask& x, Bitmask y) BOOST_NOEXCEPT                        \
+  { x = x | y; return x; }                                                                                      \
+                                                                                                                \
+  inline BOOST_CXX14_CONSTEXPR Bitmask& operator^=(Bitmask& x, Bitmask y) BOOST_NOEXCEPT                        \
+  { x = x ^ y; return x; }                                                                                      \
+                                                                                                                \
+  /* Boost extensions to [bitmask.types] */                                                                     \
+                                                                                                                \
+  inline BOOST_CONSTEXPR bool operator!(Bitmask x) BOOST_NOEXCEPT                                               \
+  { return !static_cast< ::boost::detail::bitmask::underlying_type_t< Bitmask > >(x); }                         \
+                                                                                                                \
+  BOOST_DEPRECATED("bitmask_set(enum) is deprecated, use !!enum or comparison operators instead")               \
+  inline BOOST_CONSTEXPR bool bitmask_set(Bitmask x) BOOST_NOEXCEPT                                             \
   { return !!x; }
 
 #endif // BOOST_BITMASK_HPP
-

test/Jamfile

@@ -6,6 +6,7 @@
 ################################################################################
 
 import testing ;
+import config : requires ;
 
 build-project container_fwd ;
 
@@ -27,6 +28,7 @@ import config : requires ;
 
 run binary_search_test.cpp ;
 run blank_test.cpp ;
+run bitmask_test.cpp : : : [ requires cxx11_scoped_enums ] ;
 run is_sorted_test.cpp /boost/array//boost_array ;
 run numeric_traits_test.cpp ;
 run is_xxx_test.cpp /boost/preprocessor//boost_preprocessor ;

test/bitmask_test.cpp

@@ -0,0 +1,184 @@
+/*
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * Copyright (c) 2025 Andrey Semashev
+ */
+
+#include <boost/detail/bitmask.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+enum unscoped_enum
+{
+    zero = 0,
+    one = 1,
+    two = 2,
+    four = 4
+};
+
+BOOST_BITMASK(unscoped_enum)
+
+void test_unscoped_enum()
+{
+    BOOST_TEST((one | two) == ((unscoped_enum)(1 | 2)));
+    BOOST_TEST((one & two) == ((unscoped_enum)(1 & 2)));
+    BOOST_TEST((one ^ two) == ((unscoped_enum)(1 ^ 2)));
+    BOOST_TEST((one | one) == ((unscoped_enum)(1 | 1)));
+    BOOST_TEST((one & one) == ((unscoped_enum)(1 & 1)));
+    BOOST_TEST((one ^ one) == ((unscoped_enum)(1 ^ 1)));
+    BOOST_TEST((~one) == ((unscoped_enum)(~1)));
+    {
+        unscoped_enum val = one;
+        val |= two;
+        BOOST_TEST(val == ((unscoped_enum)(1 | 2)));
+    }
+    {
+        unscoped_enum val = one;
+        val &= two;
+        BOOST_TEST(val == ((unscoped_enum)(1 & 2)));
+    }
+    {
+        unscoped_enum val = one;
+        val ^= two;
+        BOOST_TEST(val == ((unscoped_enum)(1 ^ 2)));
+    }
+    {
+        unscoped_enum val = one;
+        val |= one;
+        BOOST_TEST(val == ((unscoped_enum)(1 | 1)));
+    }
+    {
+        unscoped_enum val = one;
+        val &= one;
+        BOOST_TEST(val == ((unscoped_enum)(1 & 1)));
+    }
+    {
+        unscoped_enum val = one;
+        val ^= one;
+        BOOST_TEST(val == ((unscoped_enum)(1 ^ 1)));
+    }
+    BOOST_TEST(!zero);
+    BOOST_TEST(!!one);
+}
+
+
+enum class scoped_enum
+{
+    none = 0,
+    x = 8,
+    y = 16,
+    z = 32
+};
+
+BOOST_BITMASK(scoped_enum)
+
+void test_scoped_enum()
+{
+    BOOST_TEST((scoped_enum::x | scoped_enum::y) == ((scoped_enum)(8 | 16)));
+    BOOST_TEST((scoped_enum::x & scoped_enum::y) == ((scoped_enum)(8 & 16)));
+    BOOST_TEST((scoped_enum::x ^ scoped_enum::y) == ((scoped_enum)(8 ^ 16)));
+    BOOST_TEST((scoped_enum::x | scoped_enum::x) == ((scoped_enum)(8 | 8)));
+    BOOST_TEST((scoped_enum::x & scoped_enum::x) == ((scoped_enum)(8 & 8)));
+    BOOST_TEST((scoped_enum::x ^ scoped_enum::x) == ((scoped_enum)(8 ^ 8)));
+    BOOST_TEST((~scoped_enum::x) == ((scoped_enum)(~8)));
+    {
+        scoped_enum val = scoped_enum::x;
+        val |= scoped_enum::y;
+        BOOST_TEST(val == ((scoped_enum)(8 | 16)));
+    }
+    {
+        scoped_enum val = scoped_enum::x;
+        val &= scoped_enum::y;
+        BOOST_TEST(val == ((scoped_enum)(8 & 16)));
+    }
+    {
+        scoped_enum val = scoped_enum::x;
+        val ^= scoped_enum::y;
+        BOOST_TEST(val == ((scoped_enum)(8 ^ 16)));
+    }
+    {
+        scoped_enum val = scoped_enum::x;
+        val |= scoped_enum::x;
+        BOOST_TEST(val == ((scoped_enum)(8 | 8)));
+    }
+    {
+        scoped_enum val = scoped_enum::x;
+        val &= scoped_enum::x;
+        BOOST_TEST(val == ((scoped_enum)(8 & 8)));
+    }
+    {
+        scoped_enum val = scoped_enum::x;
+        val ^= scoped_enum::x;
+        BOOST_TEST(val == ((scoped_enum)(8 ^ 8)));
+    }
+    BOOST_TEST(!scoped_enum::none);
+    BOOST_TEST(!!scoped_enum::x);
+}
+
+
+namespace my_namespace {
+
+enum class namespaced_enum : unsigned int
+{
+    empty = 0,
+    a = 64,
+    b = 128,
+    c = 256
+};
+
+BOOST_BITMASK(namespaced_enum)
+
+} // namespace my_namespace
+
+void test_namespaced_enum()
+{
+    BOOST_TEST((my_namespace::namespaced_enum::a | my_namespace::namespaced_enum::b) == ((my_namespace::namespaced_enum)(64u | 128u)));
+    BOOST_TEST((my_namespace::namespaced_enum::a & my_namespace::namespaced_enum::b) == ((my_namespace::namespaced_enum)(64u & 128u)));
+    BOOST_TEST((my_namespace::namespaced_enum::a ^ my_namespace::namespaced_enum::b) == ((my_namespace::namespaced_enum)(64u ^ 128u)));
+    BOOST_TEST((my_namespace::namespaced_enum::a | my_namespace::namespaced_enum::a) == ((my_namespace::namespaced_enum)(64u | 64u)));
+    BOOST_TEST((my_namespace::namespaced_enum::a & my_namespace::namespaced_enum::a) == ((my_namespace::namespaced_enum)(64u & 64u)));
+    BOOST_TEST((my_namespace::namespaced_enum::a ^ my_namespace::namespaced_enum::a) == ((my_namespace::namespaced_enum)(64u ^ 64u)));
+    BOOST_TEST((~my_namespace::namespaced_enum::a) == ((my_namespace::namespaced_enum)(~64u)));
+    {
+        my_namespace::namespaced_enum val = my_namespace::namespaced_enum::a;
+        val |= my_namespace::namespaced_enum::b;
+        BOOST_TEST(val == ((my_namespace::namespaced_enum)(64u | 128u)));
+    }
+    {
+        my_namespace::namespaced_enum val = my_namespace::namespaced_enum::a;
+        val &= my_namespace::namespaced_enum::b;
+        BOOST_TEST(val == ((my_namespace::namespaced_enum)(64u & 128u)));
+    }
+    {
+        my_namespace::namespaced_enum val = my_namespace::namespaced_enum::a;
+        val ^= my_namespace::namespaced_enum::b;
+        BOOST_TEST(val == ((my_namespace::namespaced_enum)(64u ^ 128u)));
+    }
+    {
+        my_namespace::namespaced_enum val = my_namespace::namespaced_enum::a;
+        val |= my_namespace::namespaced_enum::a;
+        BOOST_TEST(val == ((my_namespace::namespaced_enum)(64u | 64u)));
+    }
+    {
+        my_namespace::namespaced_enum val = my_namespace::namespaced_enum::a;
+        val &= my_namespace::namespaced_enum::a;
+        BOOST_TEST(val == ((my_namespace::namespaced_enum)(64u & 64u)));
+    }
+    {
+        my_namespace::namespaced_enum val = my_namespace::namespaced_enum::a;
+        val ^= my_namespace::namespaced_enum::a;
+        BOOST_TEST(val == ((my_namespace::namespaced_enum)(64u ^ 64u)));
+    }
+    BOOST_TEST(!my_namespace::namespaced_enum::empty);
+    BOOST_TEST(!!my_namespace::namespaced_enum::a);
+}
+
+int main()
+{
+    test_unscoped_enum();
+    test_scoped_enum();
+    test_namespaced_enum();
+
+    return boost::report_errors();
+}