Add missing friend declaration

Fixes issue #100

.clang-format

@@ -0,0 +1,168 @@
+# ============================================================================
+#                        Copyright 2025 Gennaro Prota.
+#
+#          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)
+# ============================================================================
+
+AccessModifierOffset:                           -4
+AlignAfterOpenBracket:                          AlwaysBreak
+AlignArrayOfStructures:                         Left
+AlignConsecutiveAssignments:                    AcrossEmptyLinesAndComments
+AlignConsecutiveBitFields:                      AcrossEmptyLinesAndComments
+AlignConsecutiveDeclarations:                   AcrossEmptyLinesAndComments
+AlignConsecutiveMacros:                         AcrossEmptyLinesAndComments
+AlignEscapedNewlines:                           Right
+AlignOperands:                                  AlignAfterOperator
+AlignTrailingComments:                          true
+AllowAllArgumentsOnNextLine:                    true
+AllowAllConstructorInitializersOnNextLine:      true
+AllowAllParametersOfDeclarationOnNextLine:      true
+AllowShortEnumsOnASingleLine:                   false
+AllowShortBlocksOnASingleLine:                  Never
+AllowShortCaseLabelsOnASingleLine:              false
+AllowShortFunctionsOnASingleLine:               None
+AllowShortLambdasOnASingleLine:                 Empty
+AllowShortIfStatementsOnASingleLine:            Never
+AllowShortLoopsOnASingleLine:                   false
+AlwaysBreakAfterReturnType:                     AllDefinitions
+AlwaysBreakBeforeMultilineStrings:              false
+AlwaysBreakTemplateDeclarations:                Yes
+AttributeMacros:                                [ ]
+BinPackArguments:                               false
+BinPackParameters:                              false
+BraceWrapping:
+  AfterCaseLabel:           true
+  AfterClass:               true
+  AfterControlStatement:    Never
+  AfterEnum:                true
+  AfterFunction:            true
+  AfterNamespace:           false
+  AfterObjCDeclaration:     false
+  AfterStruct:              true
+  AfterUnion:               true
+  AfterExternBlock:         true
+  BeforeCatch:              false
+  BeforeElse:               false
+  BeforeLambdaBody:         true
+  BeforeWhile:              false
+  IndentBraces:             false
+  SplitEmptyFunction:       true
+  SplitEmptyRecord:         true
+  SplitEmptyNamespace:      true
+BreakBeforeBinaryOperators:                     NonAssignment
+BreakBeforeConceptDeclarations:                 true
+BreakBeforeBraces:                              Custom
+BreakBeforeInheritanceComma:                    true
+BreakInheritanceList:                           BeforeComma
+BreakBeforeTernaryOperators:                    true
+BreakConstructorInitializersBeforeComma:        true
+BreakConstructorInitializers:                   BeforeComma
+BreakAfterJavaFieldAnnotations:                 false
+BreakStringLiterals:                            true
+ColumnLimit:                                    0
+CommentPragmas:                                 ''
+CompactNamespaces:                              false
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth:              4
+ContinuationIndentWidth:                        4
+Cpp11BracedListStyle:                           false
+DeriveLineEnding:                               true
+DerivePointerAlignment:                         false
+DisableFormat:                                  false
+EmptyLineAfterAccessModifier:                   Never
+EmptyLineBeforeAccessModifier:                  Always
+ExperimentalAutoDetectBinPacking:               false
+FixNamespaceComments:                           false
+ForEachMacros:                                  [ ]
+IfMacros:                                       [ ]
+IncludeBlocks:                                  Regroup
+IncludeCategories:
+  - Regex:           'top_level_namespace.hpp'
+    Priority:        0
+    SortPriority:    0
+    CaseSensitive:   false
+  - Regex:           '.*'
+    Priority:        1
+    SortPriority:    1
+    CaseSensitive:   false
+IncludeIsMainRegex:                             ''
+IncludeIsMainSourceRegex:                       ''
+IndentAccessModifiers:                          false
+IndentCaseLabels:                               false
+IndentCaseBlocks:                               false
+IndentGotoLabels:                               false
+IndentPPDirectives:                             AfterHash
+IndentExternBlock:                              AfterExternBlock
+IndentRequires:                                 true
+IndentWidth:                                    4
+IndentWrappedFunctionNames:                     false
+InsertTrailingCommas:                           Wrapped
+JavaScriptQuotes:                               Leave
+JavaScriptWrapImports:                          true
+KeepEmptyLinesAtTheStartOfBlocks:               false
+LambdaBodyIndentation:                          Signature
+MacroBlockBegin:                                ''
+MacroBlockEnd:                                  ''
+MaxEmptyLinesToKeep:                            1
+NamespaceIndentation:                           None
+ObjCBinPackProtocolList:                        Auto
+ObjCBlockIndentWidth:                           2
+ObjCBreakBeforeNestedBlockParam:                true
+ObjCSpaceAfterProperty:                         false
+ObjCSpaceBeforeProtocolList:                    true
+PenaltyBreakAssignment:                         2
+PenaltyBreakBeforeFirstCallParameter:           19
+PenaltyBreakComment:                            300
+PenaltyBreakFirstLessLess:                      120
+PenaltyBreakString:                             1000
+PenaltyBreakTemplateDeclaration:                10
+PenaltyExcessCharacter:                         1000000
+PenaltyReturnTypeOnItsOwnLine:                  60
+PenaltyIndentedWhitespace:                      0
+PointerAlignment:                               Middle
+PPIndentWidth:                                  -1
+ReferenceAlignment:                             Pointer
+ReflowComments:                                 true
+ShortNamespaceLines:                            1
+SortIncludes:                                   CaseSensitive
+SortJavaStaticImport:                           Before
+SortUsingDeclarations:                          true
+SpaceAfterCStyleCast:                           false
+SpaceAfterLogicalNot:                           true
+SpaceAfterTemplateKeyword:                      false
+SpaceBeforeAssignmentOperators:                 true
+SpaceBeforeCaseColon:                           false
+SpaceBeforeCpp11BracedList:                     false
+SpaceBeforeCtorInitializerColon:                true
+SpaceBeforeInheritanceColon:                    true
+SpaceBeforeParens:                              ControlStatements
+SpaceAroundPointerQualifiers:                   Both
+SpaceBeforeRangeBasedForLoopColon:              true
+SpaceInEmptyBlock:                              false
+SpaceInEmptyParentheses:                        false
+SpacesBeforeTrailingComments:                   1
+SpacesInAngles:                                 Always
+SpacesInConditionalStatement:                   true
+SpacesInContainerLiterals:                      true
+SpacesInCStyleCastParentheses:                  false
+SpacesInLineCommentPrefix:
+  Minimum:         1
+  Maximum:         -1
+SpacesInParentheses:                            true
+SpacesInSquareBrackets:                         true
+SpaceBeforeSquareBrackets:                      false
+BitFieldColonSpacing:                           Both
+Standard:                                       Latest
+StatementAttributeLikeMacros:                   [ ]
+StatementMacros:                                [ ]
+TabWidth:                                       8
+UseCRLF:                                        false
+UseTab:                                         Never
+WhitespaceSensitiveMacros:                      [ ]
+
+# Local Variables:
+# mode: yaml
+# End:
+# vim: set ft=yaml:

.github/workflows/ci.yml

@@ -1,12 +1,21 @@
+#
 # Copyright 2020-2021 Peter Dimov
 # Copyright 2021 Andrey Semashev
-# Copyright 2021 Alexander Grund
-# Copyright 2022-2024 James E. King III
+# Copyright 2021-2024 Alexander Grund
+# Copyright 2022-2025 James E. King III
+# Copyright 2023 Alan de Freitas
 #
 # 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)
+#
+# This workflow uses the Boost.CI reusable workflow which builds a variety of
+# configurations of your project, runs tests, and generates code coverage reports.
+#
+# To use it, copy this file into your repository as `.github/workflows/ci.yml` and
+# customize it appropriately.
+# 
 ---
-name: CI
+name: Boost.CI
 
 on:
   pull_request:
@@ -23,407 +32,79 @@ on:
       - meta/**
       - README.md
 
-concurrency:
-  group: ${{format('{0}:{1}', github.repository, github.ref)}}
-  cancel-in-progress: true
-
-env:
-  GIT_FETCH_JOBS: 8
-  NET_RETRY_COUNT: 5
-  B2_CI_VERSION: 1
-  B2_VARIANT: debug,release
-  B2_LINK: shared,static
-  LCOV_BRANCH_COVERAGE: 0
-
 jobs:
-  posix:
+  call-boost-ci:
+    name: Run Boost.CI
+    uses: boostorg/boost-ci/.github/workflows/reusable.yml@master
+    with:
+      # These compilers fail.
+      exclude_compiler: 'clang-3.5,clang-3.6,clang-3.7,clang-3.8,gcc-4.8,gcc-4.9'
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+      COVERITY_SCAN_NOTIFICATION_EMAIL: ${{ secrets.COVERITY_SCAN_NOTIFICATION_EMAIL }}
+      COVERITY_SCAN_TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}
+
+  antora:
+    name: Antora docs
+    strategy:
+      matrix:
+        include:
+          - { name: Windows, os: windows-latest }
+          - { name: Ubuntu, os: ubuntu-latest }
+          - { name: macOS, os: macos-15 }
+    runs-on: ${{ matrix.os }}
     defaults:
       run:
         shell: bash
-
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          # linux, gcc
-          - { compiler: gcc-7,     cxxstd: '11,14,17',       os: ubuntu-20.04 }
-          - { compiler: gcc-8,     cxxstd: '11,14,17,2a',    os: ubuntu-20.04 }
-          - { compiler: gcc-9,     cxxstd: '11,14,17,2a',    os: ubuntu-20.04 }
-          - { compiler: gcc-10,    cxxstd: '11,14,17,20',    os: ubuntu-20.04 }
-          - { compiler: gcc-11,    cxxstd: '11,14,17,20',    os: ubuntu-20.04 }
-          - { compiler: gcc-12,    cxxstd: '11,14,17,20',    os: ubuntu-22.04 }
-          - { compiler: gcc-13,    cxxstd: '11,14,17,20,2b', os: ubuntu-22.04 }
-          - { compiler: gcc-14,    cxxstd: '11,14,17,20,2b', os: ubuntu-24.04 }
-          - { name: GCC w/ sanitizers, sanitize: yes,
-              compiler: gcc-13,    cxxstd: '11,14,17,20',    os: ubuntu-22.04 }
-          - { name: Collect coverage, coverage: yes,
-              compiler: gcc-12,    cxxstd: '11',             os: ubuntu-22.04, install: 'g++-12-multilib', address-model: '32,64' }
-
-          # linux, clang
-          - { compiler: clang-9,   cxxstd: '11,14,17,2a',    os: ubuntu-20.04 }
-          - { compiler: clang-10,  cxxstd: '11,14,17,20',    os: ubuntu-20.04 }
-          - { compiler: clang-11,  cxxstd: '11,14,17,20',    os: ubuntu-20.04 }
-          - { compiler: clang-12,  cxxstd: '11,14,17,20',    os: ubuntu-20.04 }
-          # Clang isn't compatible with libstdc++-13, so use the slightly older one
-          - { compiler: clang-13,  cxxstd: '11,14,17,20',    os: ubuntu-22.04,  install: 'clang-13 g++-12', gcc_toolchain: 12 }
-          - { compiler: clang-14,  cxxstd: '11,14,17,20',    os: ubuntu-22.04,  install: 'clang-14 g++-12', gcc_toolchain: 12 }
-          - { compiler: clang-15,  cxxstd: '11,14,17,20',    os: ubuntu-22.04,  install: 'clang-15 g++-12', gcc_toolchain: 12 }
-          - { compiler: clang-16,  cxxstd: '11,14,17,20,2b', os: ubuntu-24.04 }
-          # https://github.com/llvm/llvm-project/issues/59827: disabled 2b/23 for clang-17 with libstdc++13 in 24.04
-          - { compiler: clang-17,  cxxstd: '11,14,17,20',    os: ubuntu-24.04 }
-          - { compiler: clang-18,  cxxstd: '11,17,20,23,2c', os: ubuntu-24.04 }
-
-          # linux, libc++
-          - { name: Clang w/ sanitizers, sanitize: yes,
-              compiler: clang-12,  cxxstd: '11,14,17,20',    os: ubuntu-20.04, stdlib: 'libc++', install: 'clang-12 libc++-12-dev libc++abi-12-dev' }
-
-          - { name: MacOS w/ clang and sanitizers,
-              compiler: clang,     cxxstd: '11,14,17,20,2b', os: macos-13, sanitize: yes }
-          - { compiler: clang,     cxxstd: '11,14,17,20,2b', os: macos-14 }
-          - { compiler: clang,     cxxstd: '11,14,17,20,2b', os: macos-15 }
-
-          # Coverity Scan
-          # requires two github secrets in repo to activate; see ci/github/coverity.sh
-          # does not run on pull requests, only on pushes into develop and master
-          - { name: Coverity, coverity: yes,
-              compiler: clang-12,  cxxstd: '17',             os: ubuntu-20.04, ccache: no }
-
-          # multiarch (bigendian testing) - does not support coverage yet
-          - { name: Big-endian, multiarch: yes,
-              compiler: clang,     cxxstd: '17',             os: ubuntu-22.04, ccache: no, distro: fedora, edition: 34, arch: s390x }
-
-    timeout-minutes: 120
-    runs-on: ${{matrix.os}}
-    env: {B2_USE_CCACHE: 1}
-
     steps:
-      - name: Setup environment
-        run: |
-            if [ -f "/etc/debian_version" ]; then
-                echo "DEBIAN_FRONTEND=noninteractive" >> $GITHUB_ENV
-                export DEBIAN_FRONTEND=noninteractive
-            fi
-            if [ -n "${{matrix.container}}" ] && [ -f "/etc/debian_version" ]; then
-                apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
-                apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y sudo software-properties-common curl
-                # Need (newer) git, and the older Ubuntu container may require requesting the key manually using port 80
-                curl -sSL --retry ${NET_RETRY_COUNT:-5} 'http://keyserver.ubuntu.com/pks/lookup?op=get&search=0xE1DD270288B4E6030699E45FA1715D88E1DF1F24' | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/git-core_ubuntu_ppa.gpg
-                for i in {1..${NET_RETRY_COUNT:-3}}; do sudo -E add-apt-repository -y ppa:git-core/ppa && break || sleep 10; done
-                apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
-                osver=$(lsb_release -sr | cut -f1 -d.)
-                pkgs="g++ git xz-utils"
-                # Ubuntu 22+ has only Python 3 in the repos
-                if [ -n "$osver" ] && [ "$osver" -ge "22" ]; then
-                  pkgs+=" python-is-python3 libpython3-dev"
-                else
-                  pkgs+=" python libpython-dev"
-                fi
-                apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y $pkgs
-            fi
-            # For jobs not compatible with ccache, use "ccache: no" in the matrix
-            if [[ "${{ matrix.ccache }}" == "no" ]]; then
-                echo "B2_USE_CCACHE=0" >> $GITHUB_ENV
-            fi
-            git config --global pack.threads 0
-            if [[ "${{matrix.container}}" == "ubuntu:1"* ]]; then
-              # Node 20 doesn't work with Ubuntu 16/18  glibc: https://github.com/actions/checkout/issues/1590
-              curl -sL https://archives.boost.io/misc/node/node-v20.9.0-linux-x64-glibc-217.tar.xz | tar -xJ --strip-components 1 -C /node20217
-            fi
-
-      - uses: actions/checkout@v4
-        with:
-          # For coverage builds fetch the whole history, else only 1 commit using a 'fake ternary'
-          fetch-depth: ${{ matrix.coverage && '0' || '1' }}
-
-      - name: Cache ccache
-        uses: actions/cache@v4
-        if: env.B2_USE_CCACHE
-        with:
-          path: ~/.ccache
-          key: ${{matrix.os}}-${{matrix.container}}-${{matrix.compiler}}-${{github.sha}}
-          restore-keys: ${{matrix.os}}-${{matrix.container}}-${{matrix.compiler}}-
-
-      - name: Fetch Boost.CI
-        uses: actions/checkout@v4
-        with:
-          repository: boostorg/boost-ci
-          ref: master
-          path: boost-ci-cloned
-
-      - name: Get CI scripts folder
-        run: |
-            # Copy ci folder if not testing Boost.CI
-            [[ "$GITHUB_REPOSITORY" =~ "boost-ci" ]] || cp -r boost-ci-cloned/ci .
-            rm -rf boost-ci-cloned
-
       - name: Install packages
-        if: startsWith(matrix.os, 'ubuntu')
-        run: |
-            SOURCE_KEYS=("${{join(matrix.source_keys, '" "')}}")
-            SOURCES=("${{join(matrix.sources, '" "')}}")
-            # Add this by default
-            SOURCE_KEYS+=('http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x1E9377A2BA9EF27F')
-            SOURCES+=(ppa:ubuntu-toolchain-r/test)
+        uses: alandefreitas/cpp-actions/package-install@v1.8.8
+        with:
+          apt-get: git cmake
 
-            ci/add-apt-keys.sh "${SOURCE_KEYS[@]}"
-            # Initial update before adding sources required to get e.g. keys
-            sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
-            ci/add-apt-repositories.sh "${SOURCES[@]}"
-
-            sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
-            if [[ -z "${{matrix.install}}" ]]; then
-                pkgs="${{matrix.compiler}}"
-                pkgs="${pkgs/gcc-/g++-}"
-            else
-                pkgs="${{matrix.install}}"
-            fi
-            sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y $pkgs
-
-      - name: Setup GCC Toolchain
-        if: matrix.gcc_toolchain
-        run: |
-            GCC_TOOLCHAIN_ROOT="$HOME/gcc-toolchain"
-            echo "GCC_TOOLCHAIN_ROOT=$GCC_TOOLCHAIN_ROOT" >> $GITHUB_ENV
-            if ! command -v dpkg-architecture; then
-                apt-get install -y dpkg-dev
-            fi
-            MULTIARCH_TRIPLET="$(dpkg-architecture -qDEB_HOST_MULTIARCH)"
-            mkdir -p "$GCC_TOOLCHAIN_ROOT"
-            ln -s /usr/include "$GCC_TOOLCHAIN_ROOT/include"
-            ln -s /usr/bin "$GCC_TOOLCHAIN_ROOT/bin"
-            mkdir -p "$GCC_TOOLCHAIN_ROOT/lib/gcc/$MULTIARCH_TRIPLET"
-            ln -s "/usr/lib/gcc/$MULTIARCH_TRIPLET/${{matrix.gcc_toolchain}}" "$GCC_TOOLCHAIN_ROOT/lib/gcc/$MULTIARCH_TRIPLET/${{matrix.gcc_toolchain}}"
-
-      - name: Setup multiarch
-        if: matrix.multiarch
-        env:
-          BDDE_DISTRO: ${{matrix.distro}}
-          BDDE_EDITION: ${{matrix.edition}}
-          BDDE_ARCH: ${{matrix.arch}}
-        run: ci/github/setup_bdde.sh
-
-      - name: Setup Boost
-        env:
-          B2_ADDRESS_MODEL: ${{matrix.address-model}}
-          B2_COMPILER: ${{matrix.compiler}}
-          B2_CXXSTD: ${{matrix.cxxstd}}
-          B2_SANITIZE: ${{matrix.sanitize}}
-          B2_STDLIB: ${{matrix.stdlib}}
-          # More entries can be added in the same way, see the B2_ARGS assignment in ci/enforce.sh for the possible keys.
-          # B2_DEFINES: ${{matrix.defines}}
-          # Variables set here (to non-empty) will override the top-level environment variables, e.g.
-          # B2_VARIANT: ${{matrix.variant}}
-          # Set the (B2) target(s) to build, defaults to the test folder of the current library
-          # Can alternatively be done like this in the build step or in the build command of the build step, e.g. `run: B2_TARGETS=libs/$SELF/doc ci/build.sh`
-          # B2_TARGETS: libs/foo/test//bar
-        run: source ci/github/install.sh
-
-      - name: Setup coverage collection
-        if: matrix.coverage
-        run: ci/github/codecov.sh "setup"
-
-      - name: Run tests
-        if: '!matrix.coverity'
-        run: ci/build.sh
-
-      - name: Upload coverage
-        if: matrix.coverage
-        run: ci/codecov.sh "upload"
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-
-      - name: Run coverity
-        if: matrix.coverity && github.event_name == 'push' && (github.ref_name == 'develop' || github.ref_name == 'master')
-        run: ci/github/coverity.sh
-        env:
-          COVERITY_SCAN_NOTIFICATION_EMAIL: ${{ secrets.COVERITY_SCAN_NOTIFICATION_EMAIL }}
-          COVERITY_SCAN_TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}
-
-  windows:
-    defaults:
-      run:
-        shell: cmd
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - { toolset: msvc-14.0, cxxstd: '14,latest',      addrmd: '32,64', os: windows-2019 }
-          - { toolset: msvc-14.2, cxxstd: '14,17,20',       addrmd: '32,64', os: windows-2019 }
-          - { toolset: msvc-14.3, cxxstd: '14,17,20,latest',addrmd: '32,64', os: windows-2022 }
-          - { name: Collect coverage, coverage: yes,
-              toolset: msvc-14.3, cxxstd: 'latest',         addrmd: '64',    os: windows-2022 }
-          - { toolset: clang-win, cxxstd: '14,17,latest',   addrmd: '32,64', os: windows-2022 }
-          - { toolset: gcc,       cxxstd: '11,14,17,2a',    addrmd: '64',    os: windows-2019 }
-
-    runs-on: ${{matrix.os}}
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Fetch Boost.CI
+      - name: Clone Boost.DynamicBitset
         uses: actions/checkout@v4
+
+      - name: Clone Boost
+        uses: alandefreitas/cpp-actions/boost-clone@v1.8.8
+        id: boost-clone
         with:
-          repository: boostorg/boost-ci
-          ref: master
-          path: boost-ci-cloned
-      - name: Get CI scripts folder
-        run: |
-            REM Copy ci folder if not testing Boost.CI
-            if "%GITHUB_REPOSITORY%" == "%GITHUB_REPOSITORY:boost-ci=%" xcopy /s /e /q /i /y boost-ci-cloned\ci .\ci
-            rmdir /s /q boost-ci-cloned
+          branch: ${{ (github.ref_name == 'master' && github.ref_name) || 'develop' }}
+          boost-dir: ../boost-source
+          scan-modules-dir: .
+          scan-modules-ignore: dynamic_bitset
 
-      - name: Setup Boost
-        run: ci\github\install.bat
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 18
 
-      - name: Run tests
-        if: '!matrix.coverage'
-        run: ci\build.bat
+      - name: Setup Ninja
+        if: runner.os == 'Windows'
+        uses: seanmiddleditch/gha-setup-ninja@v5
+
+      - name: Build Antora docs
         env:
-          B2_TOOLSET: ${{matrix.toolset}}
-          B2_CXXSTD: ${{matrix.cxxstd}}
-          B2_ADDRESS_MODEL: ${{matrix.addrmd}}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          git config --global --add safe.directory "$(pwd)"
 
-      - name: Collect coverage
-        shell: powershell
-        if: matrix.coverage
-        run: ci\opencppcoverage.ps1
-        env:
-          B2_TOOLSET: ${{matrix.toolset}}
-          B2_CXXSTD: ${{matrix.cxxstd}}
-          B2_ADDRESS_MODEL: ${{matrix.addrmd}}
+          cd ..
+          BOOST_SRC_DIR="$(pwd)/boost-source"
+          export BOOST_SRC_DIR
 
-      - name: Upload coverage
-        if: matrix.coverage
-        uses: codecov/codecov-action@v5
+          cd dynamic_bitset
+          cd doc
+          bash ./build_antora.sh
+
+          # Antora returns zero even if it fails, so we check if the site directory exists.
+          if [ ! -d "html" ]
+          then
+              echo "Antora build failed"
+              exit 1
+          fi
+
+      - name: Create Antora docs artifact
+        uses: actions/upload-artifact@v4
         with:
-          disable_search: true
-          fail_ci_if_error: true
-          files: __out/cobertura.xml
-          name: github-actions
-          token: ${{secrets.CODECOV_TOKEN}}
-          verbose: true
-
-  MSYS2:
-    defaults:
-      run:
-        shell: msys2 {0}
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - { sys: MINGW32, compiler: gcc, cxxstd: '11,17,20' }
-          - { sys: MINGW64, compiler: gcc, cxxstd: '11,17,20' }
-
-    runs-on: windows-latest
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Setup MSYS2 environment
-        uses: msys2/setup-msys2@v2
-        with:
-          msystem: ${{matrix.sys}}
-          update: true
-          install: git python
-          pacboy: gcc:p cmake:p ninja:p
-
-      - name: Fetch Boost.CI
-        uses: actions/checkout@v4
-        with:
-          repository: boostorg/boost-ci
-          ref: master
-          path: boost-ci-cloned
-      - name: Get CI scripts folder
-        run: |
-            # Copy ci folder if not testing Boost.CI
-            [[ "$GITHUB_REPOSITORY" =~ "boost-ci" ]] || cp -r boost-ci-cloned/ci .
-            rm -rf boost-ci-cloned
-
-      - name: Setup Boost
-        env:
-          B2_COMPILER: ${{matrix.compiler}}
-          B2_CXXSTD: ${{matrix.cxxstd}}
-          B2_SANITIZE: ${{matrix.sanitize}}
-          B2_STDLIB: ${{matrix.stdlib}}
-        run: ci/github/install.sh
-
-      - name: Run tests
-        run: ci/build.sh
-
-      # Run also the CMake tests to avoid having to setup another matrix for CMake on MSYS
-      - name: Run CMake tests
-        run: |
-            cd "$BOOST_ROOT"
-            mkdir __build_cmake_test__ && cd __build_cmake_test__
-            cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DBOOST_INCLUDE_LIBRARIES=$SELF -DBUILD_SHARED_LIBS=ON -DBUILD_TESTING=ON -DBoost_VERBOSE=ON ..
-            cmake --build . --target tests --config Debug -j$B2_JOBS
-            ctest --output-on-failure --build-config Debug
-
-  CMake:
-    defaults:
-      run:
-        shell: bash
-
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - { os: ubuntu-20.04, build_shared: ON,  build_type: Debug, generator: 'Unix Makefiles' }
-          - { os: ubuntu-20.04, build_shared: OFF, build_type: Debug, generator: 'Unix Makefiles' }
-          - { os: windows-2019, build_shared: ON,  build_type: Debug, generator: 'Visual Studio 16 2019' }
-          - { os: windows-2019, build_shared: OFF, build_type: Debug, generator: 'Visual Studio 16 2019' }
-
-    timeout-minutes: 120
-    runs-on: ${{matrix.os}}
-
-    steps:
-      - uses: actions/checkout@v4
-      - name: Fetch Boost.CI
-        uses: actions/checkout@v4
-        with:
-          repository: boostorg/boost-ci
-          ref: master
-          path: boost-ci-cloned
-      - name: Get CI scripts folder
-        run: |
-            # Copy ci folder if not testing Boost.CI
-            [[ "$GITHUB_REPOSITORY" =~ "boost-ci" ]] || cp -r boost-ci-cloned/ci .
-            rm -rf boost-ci-cloned
-      - name: Setup Boost
-        env: {B2_DONT_BOOTSTRAP: 1}
-        run: source ci/github/install.sh
-
-      - name: Run CMake tests
-        run: |
-            cd "$BOOST_ROOT"
-            mkdir __build_cmake_test__ && cd __build_cmake_test__
-            cmake -G "${{matrix.generator}}" -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DBOOST_INCLUDE_LIBRARIES=$SELF -DBUILD_SHARED_LIBS=${{matrix.build_shared}} -DBUILD_TESTING=ON -DBoost_VERBOSE=ON ..
-            cmake --build . --target tests --config ${{matrix.build_type}} -j$B2_JOBS
-            ctest --output-on-failure --build-config ${{matrix.build_type}}
-
-      - name: Run CMake subdir tests
-        run: |
-            cmake_test_folder="$BOOST_ROOT/libs/$SELF/test/cmake_test" # New unified folder
-            [ -d "$cmake_test_folder" ] || cmake_test_folder="$BOOST_ROOT/libs/$SELF/test/cmake_subdir_test"
-            cd "$cmake_test_folder"
-            mkdir __build_cmake_subdir_test__ && cd __build_cmake_subdir_test__
-            cmake -G "${{matrix.generator}}" -DBOOST_CI_INSTALL_TEST=OFF -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DBUILD_SHARED_LIBS=${{matrix.build_shared}} ..
-            cmake --build . --config ${{matrix.build_type}} -j$B2_JOBS
-            ctest --output-on-failure --build-config ${{matrix.build_type}}
-
-      - name: Install Library
-        run: |
-            cd "$BOOST_ROOT"
-            mkdir __build_cmake_install_test__ && cd __build_cmake_install_test__
-            cmake -G "${{matrix.generator}}" -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DBOOST_INCLUDE_LIBRARIES=$SELF -DBUILD_SHARED_LIBS=${{matrix.build_shared}} -DCMAKE_INSTALL_PREFIX=~/.local -DBoost_VERBOSE=ON -DBoost_DEBUG=ON ..
-            cmake --build . --target install --config ${{matrix.build_type}} -j$B2_JOBS
-      - name: Run CMake install tests
-        run: |
-            cmake_test_folder="$BOOST_ROOT/libs/$SELF/test/cmake_test" # New unified folder
-            [ -d "$cmake_test_folder" ] || cmake_test_folder="$BOOST_ROOT/libs/$SELF/test/cmake_install_test"
-            cd "$cmake_test_folder"
-            mkdir __build_cmake_install_test__ && cd __build_cmake_install_test__
-            cmake -G "${{matrix.generator}}" -DBOOST_CI_INSTALL_TEST=ON -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DBUILD_SHARED_LIBS=${{matrix.build_shared}} -DCMAKE_PREFIX_PATH=~/.local ..
-            cmake --build . --config ${{matrix.build_type}} -j$B2_JOBS
-            ctest --output-on-failure --build-config ${{matrix.build_type}}
-
+          name: antora-docs-${{ matrix.name }}
+          path: doc/html

CMakeLists.txt

@@ -1,26 +1,67 @@
 # Generated by `boostdep --cmake dynamic_bitset`
 # Copyright 2020 Peter Dimov
+# Copyright 2025 Gennaro Prota
 # Distributed under the Boost Software License, Version 1.0.
 # https://www.boost.org/LICENSE_1_0.txt
 
 cmake_minimum_required(VERSION 3.5...3.16)
 
 project(boost_dynamic_bitset VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
+set(BOOST_DYNAMIC_BITSET_IS_ROOT OFF)
+if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+    set(BOOST_DYNAMIC_BITSET_IS_ROOT ON)
+endif ()
 
 add_library(boost_dynamic_bitset INTERFACE)
 add_library(Boost::dynamic_bitset ALIAS boost_dynamic_bitset)
 
 target_include_directories(boost_dynamic_bitset INTERFACE include)
 
+if (BOOST_DYNAMIC_BITSET_IS_ROOT)
+    # This means this script will be executed as the root CMakeLists.txt
+    # so the Boost:: targets are not available unless we explicitly include
+    # them here. MrDocs executes this script as root too.
+    if (NOT DEFINED BOOST_SRC_DIR AND DEFINED ENV{BOOST_SRC_DIR})
+        set(DEFAULT_BOOST_SRC_DIR "$ENV{BOOST_SRC_DIR}")
+    else ()
+        set(DEFAULT_BOOST_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../..")
+    endif ()
+    set(BOOST_SRC_DIR ${DEFAULT_BOOST_SRC_DIR} CACHE STRING "Boost source dir to use when running CMake from this directory")
+    if (NOT IS_ABSOLUTE ${BOOST_SRC_DIR})
+        set(BOOST_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${BOOST_SRC_DIR}")
+    endif ()
+
+    # Validate BOOST_SRC_DIR
+    set(BOOST_SRC_DIR_IS_VALID ON)
+    foreach (F "CMakeLists.txt" "Jamroot" "boost-build.jam" "bootstrap.sh" "libs")
+        if (NOT EXISTS "${BOOST_SRC_DIR}/${F}")
+            message(STATUS "${BOOST_SRC_DIR}/${F} does not exist. Fallback to find_package.")
+            set(BOOST_SRC_DIR_IS_VALID OFF)
+            break()
+        endif ()
+    endforeach ()
+    if (NOT BOOST_SRC_DIR_IS_VALID)
+        message(FATAL_ERROR "BOOST_SRC_DIR is not valid. Please set it to the root of a Boost checkout.")
+    endif ()
+
+    # If BOOST_SRC_DIR is valid, fallback to find_package
+    set(CMAKE_FOLDER Dependencies)
+    set(BOOST_INCLUDE_LIBRARIES assert config container_hash core throw_exception)
+    set(BOOST_EXCLUDE_LIBRARIES dynamic_bitset)
+    set(PREV_BUILD_TESTING ${BUILD_TESTING})
+    set(BUILD_TESTING OFF CACHE BOOL "Build the tests." FORCE)
+    add_subdirectory(${BOOST_SRC_DIR} Dependencies/boost EXCLUDE_FROM_ALL)
+    set(BUILD_TESTING ${PREV_BUILD_TESTING} CACHE BOOL "Build the tests." FORCE)
+    set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${BOOST_SRC_DIR}/tools/cmake/include")
+    unset(CMAKE_FOLDER)
+endif()
+
 target_link_libraries(boost_dynamic_bitset
   INTERFACE
     Boost::assert
     Boost::config
     Boost::container_hash
     Boost::core
-    Boost::integer
-    Boost::move
-    Boost::static_assert
     Boost::throw_exception
 )
 
@@ -30,3 +71,26 @@ if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
 
 endif()
 
+if (DYNAMIC_BITSET_MRDOCS_BUILD)
+    set(INCLUDE_DIR "${CMAKE_SOURCE_DIR}/include")
+
+    # Create a temporary source file that includes boost/dynamic_bitset.hpp.
+    set(TEMP_CPP_FILE "${CMAKE_CURRENT_BINARY_DIR}/dynamic_bitset_for_mrdocs.cpp")
+    file(WRITE ${TEMP_CPP_FILE} "// This file is generated automatically by CMake\n\n")
+    file(APPEND ${TEMP_CPP_FILE} "#include \"boost/dynamic_bitset.hpp\"\n")
+
+    # Create a custom target for MrDocs.
+    add_library(dynamic_bitset_mrdocs_target ${TEMP_CPP_FILE})
+
+    # This is to get the documentation of the constructor from basic_string_view.
+    set_target_properties(dynamic_bitset_mrdocs_target PROPERTIES CXX_STANDARD 17 CXX_STANDARD_REQUIRED YES)
+
+    # Set any other target properties here.
+    target_include_directories(dynamic_bitset_mrdocs_target PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
+    target_link_libraries(dynamic_bitset_mrdocs_target PRIVATE boost_dynamic_bitset)
+    file(GLOB BOOST_MODULE_PATHS "$ENV{BOOST_SRC_DIR}/libs/*/include")
+    target_include_directories(dynamic_bitset_mrdocs_target PRIVATE ${BOOST_MODULE_PATHS})
+
+    # Don't create any other targets.
+    return()
+endif()

README.md

@@ -1,4 +1,4 @@
-DynamicBitset, part of collection of the [Boost C++ Libraries](https://github.com/boostorg), is similar to std::bitset however the size is specified at run-time instead of at compile-time.
+DynamicBitset, part of the [Boost C++ Libraries](https://github.com/boostorg), is a bit vector similar to std::bitset but dynamically resizable.
 
 ### License
 
@@ -9,26 +9,17 @@ Distributed under the [Boost Software License, Version 1.0](https://www.boost.or
 * C++11
 * Header-only
 
-### Build Status
+### Build status
 
 <!-- boost-ci/tools/makebadges.sh --project dynamic_bitset --appveyor n7bki5ka3v918r5r --codecov PVG5jth1ez --coverity 16167 -->
-| Branch          | GHA CI | Appveyor | Coverity Scan | codecov.io | Deps | Docs | Tests |
-| :-------------: | ------ | -------- | ------------- | ---------- | ---- | ---- | ----- |
-| [`master`](https://github.com/boostorg/dynamic_bitset/tree/master) | [![Build Status](https://github.com/boostorg/dynamic_bitset/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/dynamic_bitset/actions?query=branch:master) | [![Build status](https://ci.appveyor.com/api/projects/status/n7bki5ka3v918r5r/branch/master?svg=true)](https://ci.appveyor.com/project/cppalliance/dynamic-bitset/branch/master) | [![Coverity Scan Build Status](https://scan.coverity.com/projects/16167/badge.svg)](https://scan.coverity.com/projects/boostorg-dynamic_bitset) | [![codecov](https://codecov.io/gh/boostorg/dynamic_bitset/branch/master/graph/badge.svg?token=PVG5jth1ez)](https://codecov.io/gh/boostorg/dynamic_bitset/tree/master) | [![Deps](https://img.shields.io/badge/deps-master-brightgreen.svg)](https://pdimov.github.io/boostdep-report/master/dynamic_bitset.html) | [![Documentation](https://img.shields.io/badge/docs-master-brightgreen.svg)](https://www.boost.org/doc/libs/master/libs/dynamic_bitset) | [![Enter the Matrix](https://img.shields.io/badge/matrix-master-brightgreen.svg)](https://www.boost.org/development/tests/master/developer/dynamic_bitset.html)
-| [`develop`](https://github.com/boostorg/dynamic_bitset/tree/develop) | [![Build Status](https://github.com/boostorg/dynamic_bitset/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/dynamic_bitset/actions?query=branch:develop) | [![Build status](https://ci.appveyor.com/api/projects/status/n7bki5ka3v918r5r/branch/develop?svg=true)](https://ci.appveyor.com/project/cppalliance/dynamic-bitset/branch/develop) | [![Coverity Scan Build Status](https://scan.coverity.com/projects/16167/badge.svg)](https://scan.coverity.com/projects/boostorg-dynamic_bitset) | [![codecov](https://codecov.io/gh/boostorg/dynamic_bitset/branch/develop/graph/badge.svg?token=PVG5jth1ez)](https://codecov.io/gh/boostorg/dynamic_bitset/tree/develop) | [![Deps](https://img.shields.io/badge/deps-develop-brightgreen.svg)](https://pdimov.github.io/boostdep-report/develop/dynamic_bitset.html) | [![Documentation](https://img.shields.io/badge/docs-develop-brightgreen.svg)](https://www.boost.org/doc/libs/develop/libs/dynamic_bitset) | [![Enter the Matrix](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](https://www.boost.org/development/tests/develop/developer/dynamic_bitset.html)
-
-### Directories
-
-| Name        | Purpose                        |
-| ----------- | ------------------------------ |
-| `example`   | examples                       |
-| `doc`       | documentation                  |
-| `include`   | headers                        |
-| `test`      | unit tests                     |
+| Branch          | GitHub Actions | AppVeyor | Coverity Scan | Codecov | Deps | Docs | Tests |
+| :-------------: | -------------- | -------- | ------------- | ------- | ---- | ---- | ----- |
+| [`master`](https://github.com/boostorg/dynamic_bitset/tree/master) | [![Build status](https://github.com/boostorg/dynamic_bitset/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/dynamic_bitset/actions?query=branch:master) | [![Build status](https://ci.appveyor.com/api/projects/status/n7bki5ka3v918r5r/branch/master?svg=true)](https://ci.appveyor.com/project/cppalliance/dynamic-bitset/branch/master) | [![Coverity Scan build status](https://scan.coverity.com/projects/16167/badge.svg)](https://scan.coverity.com/projects/boostorg-dynamic_bitset) | [![Codecov](https://codecov.io/gh/boostorg/dynamic_bitset/branch/master/graph/badge.svg?token=PVG5jth1ez)](https://codecov.io/gh/boostorg/dynamic_bitset/tree/master) | [![Deps](https://img.shields.io/badge/deps-master-brightgreen.svg)](https://pdimov.github.io/boostdep-report/master/dynamic_bitset.html) | [![Documentation](https://img.shields.io/badge/docs-master-brightgreen.svg)](https://www.boost.org/doc/libs/master/libs/dynamic_bitset) | [![Enter the Matrix](https://img.shields.io/badge/matrix-master-brightgreen.svg)](https://www.boost.org/development/tests/master/developer/dynamic_bitset.html)
+| [`develop`](https://github.com/boostorg/dynamic_bitset/tree/develop) | [![Build status](https://github.com/boostorg/dynamic_bitset/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/dynamic_bitset/actions?query=branch:develop) | [![Build status](https://ci.appveyor.com/api/projects/status/n7bki5ka3v918r5r/branch/develop?svg=true)](https://ci.appveyor.com/project/cppalliance/dynamic-bitset/branch/develop) | [![Coverity Scan build status](https://scan.coverity.com/projects/16167/badge.svg)](https://scan.coverity.com/projects/boostorg-dynamic_bitset) | [![Codecov](https://codecov.io/gh/boostorg/dynamic_bitset/branch/develop/graph/badge.svg?token=PVG5jth1ez)](https://codecov.io/gh/boostorg/dynamic_bitset/tree/develop) | [![Deps](https://img.shields.io/badge/deps-develop-brightgreen.svg)](https://pdimov.github.io/boostdep-report/develop/dynamic_bitset.html) | [![Documentation](https://img.shields.io/badge/docs-develop-brightgreen.svg)](https://www.boost.org/doc/libs/develop/libs/dynamic_bitset) | [![Enter the Matrix](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](https://www.boost.org/development/tests/develop/developer/dynamic_bitset.html)
 
 ### More information
 
-* [Ask questions](https://stackoverflow.com/questions/ask?tags=c%2B%2B,boost,boost-dynamic_bitset)
-* [Report bugs](https://github.com/boostorg/dynamic_bitset/issues): Be sure to mention Boost version, platform and compiler you're using. A small compilable code sample to reproduce the problem is always good as well.
-* Submit your patches as pull requests against **develop** branch. Note that by submitting patches you agree to license your modifications under the [Boost Software License, Version 1.0](https://www.boost.org/LICENSE_1_0.txt).
-* Discussions about the library are held on the [Boost developers mailing list](https://www.boost.org/community/groups.html#main). Be sure to read the [discussion policy](https://www.boost.org/community/policy.html) before posting and add the `[dynamic_bitset]` tag at the beginning of the subject line.
+* [Ask questions](https://stackoverflow.com/questions/ask?tags=c%2B%2B,boost,boost-dynamic_bitset).
+* [Report bugs](https://github.com/boostorg/dynamic_bitset/issues): Be sure to mention the Boost version, platform and compiler you're using. A small compilable code sample to reproduce the problem is always good, as well.
+* Submit your patches as pull requests against the **develop** branch. Note that by submitting patches you agree to license your modifications under the [Boost Software License, Version 1.0](https://www.boost.org/LICENSE_1_0.txt).
+* Discussions about the library are held on the [Boost developers mailing list](https://www.boost.org/community/groups.html#main). Be sure to read the [discussion policy](https://www.boost.org/community/policy.html) before posting, and add the `[dynamic_bitset]` tag at the beginning of the subject line.

build.jam

@@ -10,9 +10,6 @@ constant boost_dependencies :
     /boost/config//boost_config
     /boost/container_hash//boost_container_hash
     /boost/core//boost_core
-    /boost/integer//boost_integer
-    /boost/move//boost_move
-    /boost/static_assert//boost_static_assert
     /boost/throw_exception//boost_throw_exception ;
 
 project /boost/dynamic_bitset

doc/Jamfile.v2

@@ -0,0 +1,57 @@
+import generate ;
+import path ;
+import property-set ;
+import virtual-target ;
+
+path-constant HERE : . ;
+
+make html/index.html : build_antora.sh : @run-script ;
+generate files-to-install : html/index.html : <generating-rule>@delayed-glob ;
+install install
+  : files-to-install
+  : <location>html
+    <install-source-root>html/dynamic_bitset
+  ;
+explicit html/index.html files-to-install ;
+
+# this runs the antora script
+actions run-script
+{
+    bash $(>)
+}
+
+# this globs after its sources are created
+rule delayed-glob ( project name : property-set : sources * )
+{
+  for local src in $(sources)
+  {
+    # the next line causes the source to be generated immediately
+    # and not later (which it normally would)
+    UPDATE_NOW [ $(src).actualize ] ;
+  }
+
+  # we need to construct the path to the globbed directory;
+  # this path would be <current-project>/antora
+  local root = [ path.root html [ $(project).location ] ] ;
+  local files ;
+
+  # actual globbing happens here
+  for local file in [ path.glob-tree $(root) : * ]
+  {
+    # we have to skip directories, because our match expression accepts anything
+    if [ CHECK_IF_FILE $(file) ]
+    {
+      # we construct a list of targets to copy
+      files += [ virtual-target.from-file $(file:D=) : $(file:D) : $(project) ] ;
+    }
+  }
+
+  # we prepend empty usage requirements to the result
+  return [ property-set.empty ] $(files) ;
+}
+
+###############################################################################
+alias boostdoc ;
+explicit boostdoc ;
+alias boostrelease : install ;
+explicit boostrelease ;

doc/antora.yml

@@ -0,0 +1,21 @@
+# ============================================================================
+#                        Copyright 2025 Gennaro Prota.
+#
+#          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)
+# ============================================================================
+
+name: dynamic_bitset
+version: ~
+title: Boost.DynamicBitset
+start_page: index.adoc
+asciidoc:
+  attributes:
+    source-language: asciidoc@
+    table-caption: false
+nav:
+  - modules/ROOT/nav.adoc
+ext:
+  cpp-reference:
+    config: doc/mrdocs.yml

doc/build_antora.sh

@@ -0,0 +1,31 @@
+#! /bin/sh --
+# ============================================================================
+#                       Copyright 2023 Alan de Freitas.
+#                        Copyright 2025 Gennaro Prota.
+#
+#          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)
+# ============================================================================
+
+set -eu
+
+if [ $# -eq 0 ]
+then
+    echo "No playbook supplied, using default playbook."
+    PLAYBOOK="local-playbook.yml"
+else
+    PLAYBOOK=$1
+fi
+
+SCRIPT_DIR=$( dirname -- "${BASH_SOURCE[0]}" )
+cd "$SCRIPT_DIR"
+
+echo "Installing npm dependencies..."
+npm ci
+
+echo "Building docs in custom dir..."
+PATH="$(pwd)/node_modules/.bin:${PATH}"
+export PATH
+npx antora --clean --fetch "$PLAYBOOK" --stacktrace --log-level all
+echo "Done"

doc/local-playbook.yml

@@ -0,0 +1,57 @@
+# ============================================================================
+#                       Copyright 2023 Alan de Freitas.
+#                        Copyright 2025 Gennaro Prota.
+#
+#          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)
+# ============================================================================
+#
+#       An antora playbook used for local development.
+#       The playbook includes Boost.DynamicBitset as its only component.
+# ----------------------------------------------------------------------------
+
+site:
+  title: Boost.DynamicBitset
+  start_page: dynamic_bitset::index.adoc
+  robots: allow
+  keys:
+    repo_url: 'https://github.com/boostorg/dynamic_bitset'
+
+content:
+  sources:
+    - url: ..
+      start_path: doc
+      edit_url: 'https://github.com/boostorg/dynamic_bitset/edit/{refname}/{path}'
+
+output:
+  dir: html
+  
+ui:
+  bundle:
+    url: https://github.com/boostorg/website-v2-docs/releases/download/ui-master/ui-bundle.zip
+    snapshot: true
+
+antora:
+  extensions:
+    - require: '@antora/lunr-extension' # https://gitlab.com/antora/antora-lunr-extension
+      index_latest_only: true
+    - require: '@cppalliance/antora-cpp-tagfiles-extension'
+      cpp-tagfiles:
+        using-namespaces:
+          - 'boost::'
+    - require: '@cppalliance/antora-cpp-reference-extension'
+      dependencies:
+        - name: 'boost'
+          repo: 'https://github.com/boostorg/boost.git'
+          tag: 'develop'
+          variable: 'BOOST_SRC_DIR'
+          system-env: 'BOOST_SRC_DIR'
+
+asciidoc:
+  attributes:
+    # Enable pagination
+    page-pagination: ''
+  extensions:
+    - '@cppalliance/asciidoctor-boost-links'
+    - '@asciidoctor/tabs'

doc/modules/ROOT/nav.adoc

@@ -0,0 +1,10 @@
+// ===========================================================================
+//                        Copyright 2025 Gennaro Prota.
+//
+//         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)
+// ===========================================================================
+
+* xref:index.adoc[]
+* xref:reference:boost/dynamic_bitset.adoc[Reference]

doc/modules/ROOT/pages/index.adoc

@@ -0,0 +1,72 @@
+// ===========================================================================
+//                         Copyright 2001 Jeremy Siek
+//                Copyright 2003-2004, 2008, 2025 Gennaro Prota
+//                        Copyright 2014 Ahmed Charles
+//                     Copyright 2014 Riccardo Marcangelo
+//                        Copyright 2018 Evgeny Shulgin
+//
+//         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)
+// ===========================================================================
+
+= Boost.DynamicBitset
+
+Boost.DynamicBitset is a portable library that provides a set of bits.
+
+The set
+(xref:reference:boost/dynamic_bitset.adoc#boost-dynamic_bitset[dynamic_bitset])
+provides access to the value of individual bits via
+xref:reference:boost/dynamic_bitset/operator_subs-08.adoc[operator[\]] and
+provides all of the bitwise operators that one can apply to builtin integers,
+such as xref:reference:boost/operator_bitand.adoc[operator&] and
+xref:reference:boost/dynamic_bitset/operator_lshift.adoc[operator<<]. The number
+of bits can change at runtime.
+
+`dynamic_bitset` is nearly identical to `std::bitset`. The difference is that
+the size of a `dynamic_bitset` (the number of bits) can change at runtime,
+whereas the size of a `std::bitset` is specified at compile-time through an
+integer template parameter.
+
+The main problem that `dynamic_bitset` is designed to solve is that of
+representing a subset of a finite set. Each bit represents whether an element of
+the finite set is in the subset or not. As such the bitwise operations of
+`dynamic_bitset`, such as `operator&` and `operator|`, correspond to set
+operations, such as intersection and union.
+
+== Definitions
+Each bit represents either the Boolean value `true` or `false` (1 or 0). To set
+a bit is to assign it 1. To clear or reset a bit is to assign it 0. To flip a
+bit is to change the value to 1 if it was 0 and to 0 if it was 1. Each bit has a
+non-negative position. A bitset `x` contains `x.size()` bits, with each bit
+assigned a unique position in the range `[0, x.size())`. The bit at position 0
+is called the least significant bit and the bit at position `size() - 1` is the
+most significant bit. When converting an instance of `dynamic_bitset` to or from
+an unsigned long `n`, the bit at position `i` of the bitset has the same value
+as `(n >> i) & 1`.
+
+== Rationale
+Because of the proxy reference type, `dynamic_bitset` is not a
+https://en.cppreference.com/w/cpp/named_req/Container.html[Container] and its
+iterators do not satisfy the requirements for a LegacyForwardIterator. This
+means that its iterators are not usable with many standard algorithms. However,
+`dynamic_bitset` provides C++20 iterators which can be used with ranges.
+
+Some people prefer the name "toggle" to "flip". The name "flip" was chosen
+because that is the name used in `std::bitset`. In fact, most of the function
+names for `dynamic_bitset` were chosen for this reason.
+
+`dynamic_bitset` does not throw exceptions when a precondition is violated (as
+is done in `std::bitset`). Instead `BOOST_ASSERT()` is used. See the guidelines
+for Error and Exception Handling for the explanation. Note that, consistently
+with this, the documentation of the member functions doesn't use the term
+"precondition" for conditions that cause an exception to be emitted (the C++
+standard uses the term "requires" in such cases).
+
+== Acknowledgments
+
+We would like to thank the Boost community for putting in the time to review and
+accept this library. This library is much better than it ever would have been
+due to all the suggestions from Boost members. We especially thank Matt Marcus
+for taking on the task of review manager. Also, a special thanks goes to James
+Kanze for his invaluable help with the internationalization issues.

doc/mrdocs.yml

@@ -0,0 +1,26 @@
+# ============================================================================
+#                        Copyright 2025 Gennaro Prota.
+#
+#          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)
+# ============================================================================
+
+verbose: true
+source-root: ..
+cmake: '-DDYNAMIC_BITSET_MRDOCS_BUILD=ON'
+input:
+  - ../include
+exclude-symbols:
+  - 'boost::bit_iterator_base'
+  - 'boost::bit_iterator'
+  - 'boost::const_bit_iterator'
+  - 'boost::detail'
+  - 'boost::detail::**'
+  - 'boost::to_string_helper'
+  - 'boost::dynamic_bitset::bit_appender'
+  - 'boost::dynamic_bitset::buffer_type'
+file-patterns:
+  - '*.hpp'
+multipage: true
+generator: adoc

doc/package.json

@@ -0,0 +1,15 @@
+{
+  "devDependencies": {
+    "@antora/cli": "3.1.10",
+    "@antora/site-generator": "3.1.10",
+    "antora": "3.1.10"
+  },
+  "dependencies": {
+    "@antora/expand-path-helper": "^2.0.0",
+    "@antora/lunr-extension": "^1.0.0-alpha.8",
+    "@asciidoctor/tabs": "^1.0.0-beta.3",
+    "@cppalliance/antora-cpp-reference-extension": "^0.0.8",
+    "@cppalliance/antora-cpp-tagfiles-extension": "^0.0.5",
+    "@cppalliance/asciidoctor-boost-links": "^0.0.2"
+  }
+}

doc/readme

@@ -1 +1 @@
-The documentation for the dynamic_bitset library is the top-level index.html file.
+To build the documentation, run build_docs.sh.

example/example1.cpp

@@ -3,8 +3,6 @@
 // accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-
-
 // An example of setting and reading some bits. Note that operator[]
 // goes from the least-significant bit at 0 to the most significant
 // bit at size()-1. The operator<< for dynamic_bitset prints the
@@ -20,14 +18,15 @@
 #include "boost/dynamic_bitset.hpp"
 #include <iostream>
 
-int main()
+int
+main()
 {
-    boost::dynamic_bitset<> x(5); // all 0's by default
-    x[0] = 1;
-    x[1] = 1;
-    x[4] = 1;
-    for (boost::dynamic_bitset<>::size_type i = 0; i < x.size(); ++i)
-        std::cout << x[i];
+    boost::dynamic_bitset<> x( 5 ); // all 0's by default
+    x[ 0 ] = 1;
+    x[ 1 ] = 1;
+    x[ 4 ] = 1;
+    for ( boost::dynamic_bitset<>::size_type i = 0; i < x.size(); ++i )
+        std::cout << x[ i ];
     std::cout << "\n";
     std::cout << x << "\n";
 

example/example2.cpp

@@ -13,19 +13,20 @@
 #include "boost/dynamic_bitset.hpp"
 #include <iostream>
 
-int main()
+int
+main()
 {
-  const boost::dynamic_bitset<> b0(2, 0ul);
-  std::cout << "bits(0) = " << b0 << std::endl;
+    const boost::dynamic_bitset<> b0( 2, 0ul );
+    std::cout << "bits(0) = " << b0 << std::endl;
 
-  const boost::dynamic_bitset<> b1(2, 1ul);
-  std::cout << "bits(1) = " << b1 << std::endl;
+    const boost::dynamic_bitset<> b1( 2, 1ul );
+    std::cout << "bits(1) = " << b1 << std::endl;
 
-  const boost::dynamic_bitset<> b2(2, 2ul);
-  std::cout << "bits(2) = " << b2 << std::endl;
+    const boost::dynamic_bitset<> b2( 2, 2ul );
+    std::cout << "bits(2) = " << b2 << std::endl;
 
-  const boost::dynamic_bitset<> b3(2, 3ul);
-  std::cout << "bits(3) = " << b3 << std::endl;
+    const boost::dynamic_bitset<> b3( 2, 3ul );
+    std::cout << "bits(3) = " << b3 << std::endl;
 
-  return 0;
+    return 0;
 }

example/example3.cpp

@@ -19,38 +19,36 @@
 // Shifted left by 1:        001000100
 // Shifted right by 1:       010010001
 
-
-
 #include "boost/dynamic_bitset.hpp"
-
 #include <iostream>
 #include <ostream>
 
-int main()
+int
+main()
 {
-    boost::dynamic_bitset<> mask(12, 2730ul);
+    boost::dynamic_bitset<> mask( 12, 2730ul );
     std::cout << "mask     = " << mask << std::endl;
 
     boost::dynamic_bitset<> x;
     std::cout << "x.size() = " << x.size() << std::endl;
 
     std::cout << "Enter a bitset in binary: x = " << std::flush;
-    if (std::cin >> x) {
+    if ( std::cin >> x ) {
         const std::size_t sz = x.size();
         std::cout << std::endl;
         std::cout << "Input number:             " << x << std::endl;
         std::cout << "x.size() is now:          " << sz << std::endl;
 
-        bool fits_in_ulong = true;
-        unsigned long ul = 0;
+        bool          fits_in_ulong = true;
+        unsigned long ul            = 0;
         try {
             ul = x.to_ulong();
-        } catch(std::overflow_error &) {
+        } catch ( std::overflow_error & ) {
             fits_in_ulong = false;
         }
 
         std::cout << "As unsigned long:         ";
-        if(fits_in_ulong) {
+        if ( fits_in_ulong ) {
             std::cout << ul;
         } else {
             std::cout << "(overflow exception)";
@@ -58,14 +56,14 @@ int main()
 
         std::cout << std::endl;
 
-        mask.resize(sz);
+        mask.resize( sz );
 
         std::cout << "Mask (possibly resized):  " << mask << std::endl;
 
-        std::cout << "And with mask:            " << (x & mask) << std::endl;
-        std::cout << "Or with mask:             " << (x | mask) << std::endl;
-        std::cout << "Shifted left by 1:        " << (x << 1) << std::endl;
-        std::cout << "Shifted right by 1:       " << (x >> 1) << std::endl;
+        std::cout << "And with mask:            " << ( x & mask ) << std::endl;
+        std::cout << "Or with mask:             " << ( x | mask ) << std::endl;
+        std::cout << "Shifted left by 1:        " << ( x << 1 ) << std::endl;
+        std::cout << "Shifted right by 1:       " << ( x >> 1 ) << std::endl;
     }
     return 0;
 }

include/boost/dynamic_bitset/config.hpp

@@ -1,7 +1,7 @@
 // -----------------------------------------------------------
 //
 //   Copyright (c) 2001-2002 Chuck Allison and Jeremy Siek
-//        Copyright (c) 2003-2006, 2008 Gennaro Prota
+//      Copyright (c) 2003-2006, 2008, 2025 Gennaro Prota
 //
 // Distributed under the Boost Software License, Version 1.0.
 //    (See accompanying file LICENSE_1_0.txt or copy at
@@ -13,55 +13,39 @@
 #define BOOST_DYNAMIC_BITSET_CONFIG_HPP_GP_20040424
 
 #include "boost/config.hpp"
-#include "boost/detail/workaround.hpp"
 
 // no-op function to workaround gcc bug c++/8419
 //
-namespace boost { namespace detail {
-    template <typename T> T make_non_const(T t) { return t; }
-}}
+namespace boost {
+namespace detail {
+template< typename T >
+T
+make_non_const( T t )
+{
+    return t;
+}
+}
+}
 
-#if defined(__GNUC__)
-# define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT(expr) \
-         (boost::detail::make_non_const(expr))
+#if defined( __GNUC__ )
+#    define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT( expr ) \
+        ( boost::detail::make_non_const( expr ) )
 #else
-# define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT(expr) (expr)
+#    define BOOST_DYNAMIC_BITSET_WRAP_CONSTANT( expr ) ( expr )
 #endif
 
-//
-#if (defined BOOST_BORLANDC && BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564)))  \
-                             || (defined BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
-#define BOOST_DYNAMIC_BITSET_DONT_USE_FRIENDS
+#if ! defined( BOOST_NO_CXX11_HDR_FUNCTIONAL ) && ! defined( BOOST_DYNAMIC_BITSET_NO_STD_HASH )
+#    define BOOST_DYNAMIC_BITSET_SPECIALIZE_STD_HASH
 #endif
 
-// if we can't use friends then we simply expose private members
-//
-#if defined(BOOST_DYNAMIC_BITSET_DONT_USE_FRIENDS)
-#define BOOST_DYNAMIC_BITSET_PRIVATE public
-#else
-#define BOOST_DYNAMIC_BITSET_PRIVATE private
+#if ( defined( _MSVC_LANG ) && _MSVC_LANG >= 201703L ) || __cplusplus >= 201703L
+#    define BOOST_DYNAMIC_BITSET_USE_CPP17_OR_LATER
 #endif
 
-// A couple of macros to cope with libraries without locale
-// support. The first macro must be used to declare a reference
-// to a ctype facet. The second one to widen a char by using
-// that ctype object. If facets and locales aren't available
-// the first macro is a no-op and the second one just expands
-// to its parameter c.
-//
-#if defined (BOOST_USE_FACET)
-
-#define BOOST_DYNAMIC_BITSET_CTYPE_FACET(ch, name, loc)     \
-            const std::ctype<ch> & name =                   \
-            BOOST_USE_FACET(std::ctype<ch>, loc)         /**/
-
-#define BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, c)             \
-           (fac.widen(c))
+#if ( defined( _MSVC_LANG ) && _MSVC_LANG >= 202002L ) || __cplusplus >= 202002L
+#    define BOOST_DYNAMIC_BITSET_CONSTEXPR20 constexpr
 #else
-
-#define BOOST_DYNAMIC_BITSET_CTYPE_FACET(ch, name, loc) /**/
-#define BOOST_DYNAMIC_BITSET_WIDEN_CHAR(fac, c)          c
-
+#    define BOOST_DYNAMIC_BITSET_CONSTEXPR20
 #endif
 
 #endif // include guard

include/boost/dynamic_bitset/detail/dynamic_bitset.hpp

@@ -16,292 +16,139 @@
 #ifndef BOOST_DETAIL_DYNAMIC_BITSET_HPP
 #define BOOST_DETAIL_DYNAMIC_BITSET_HPP
 
-#include "boost/config.hpp"
-#include "boost/core/allocator_access.hpp"
-#include "boost/detail/workaround.hpp"
 #include <cstddef>
 #include <memory>
-
-#if ((defined(BOOST_MSVC) && (BOOST_MSVC >= 1600)) || (defined(__clang__) && defined(__c2__)) || (defined(BOOST_INTEL) && defined(_MSC_VER))) && (defined(_M_IX86) || defined(_M_X64))
-#include <intrin.h>
-#endif
+#include <type_traits>
+#include <utility>
 
 namespace boost {
 
-  namespace detail {
-  namespace dynamic_bitset_impl {
+namespace detail {
+namespace dynamic_bitset_impl {
 
-    template<class T>
-    struct max_limit {
-        BOOST_STATIC_CONSTEXPR T value = static_cast<T>(-1);
+template< typename AllocatorOrContainer, typename Block >
+class is_container
+{
+private:
+    template< typename U >
+    static decltype( std::declval< U >().resize( std::size_t{} ), std::declval< U >()[ 0 ], typename U::value_type(), std::is_same< typename U::value_type, Block >{}, std::true_type{} ) test( int );
+
+    template< typename >
+    static std::false_type test( ... );
+
+public:
+    static constexpr bool value = decltype( test< AllocatorOrContainer >( 0 ) )::value;
+};
+
+template< typename AllocatorOrContainer, bool IsContainer >
+class allocator_type_extractor_impl;
+
+template< typename AllocatorOrContainer >
+class allocator_type_extractor_impl< AllocatorOrContainer, false >
+{
+public:
+    typedef AllocatorOrContainer type;
+};
+
+template< typename AllocatorOrContainer >
+class allocator_type_extractor_impl< AllocatorOrContainer, true >
+{
+public:
+    typedef typename AllocatorOrContainer::allocator_type type;
+};
+
+template< typename AllocatorOrContainer, typename Block >
+class allocator_type_extractor
+{
+public:
+    typedef typename allocator_type_extractor_impl<
+        AllocatorOrContainer,
+        is_container< AllocatorOrContainer, Block >::value >::type type;
+};
+
+template< typename T, int amount, int width /* = default */ >
+struct shifter
+{
+    static BOOST_DYNAMIC_BITSET_CONSTEXPR20 void
+    left_shift( T & v )
+    {
+        amount >= width ? ( v = 0 )
+                        : ( v >>= BOOST_DYNAMIC_BITSET_WRAP_CONSTANT( amount ) );
+    }
+};
+
+template< bool value >
+struct value_to_type
+{
+};
+
+// for static_asserts
+template< typename T >
+struct allowed_block_type
+{
+    enum
+    {
+        value = T( -1 ) > 0 // ensure T has no sign
     };
+};
 
-    template<class T>
-    BOOST_CONSTEXPR_OR_CONST T max_limit<T>::value;
-
-    // Gives (read-)access to the object representation
-    // of an object of type T (3.9p4). CANNOT be used
-    // on a base sub-object
-    //
-    template <typename T>
-    inline const unsigned char * object_representation (T* p)
+template<>
+struct allowed_block_type< bool >
+{
+    enum
     {
-        return static_cast<const unsigned char *>(static_cast<const void *>(p));
-    }
-
-    template<typename T, int amount, int width /* = default */>
-    struct shifter
-    {
-        static void left_shift(T & v) {
-            amount >= width ? (v = 0)
-                : (v >>= BOOST_DYNAMIC_BITSET_WRAP_CONSTANT(amount));
-        }
+        value = false
     };
+};
 
-    // ------- count function implementation --------------
-
-    typedef unsigned char byte_type;
-
-    // These two entities
-    //
-    //     enum mode { access_by_bytes, access_by_blocks };
-    //     template <mode> struct mode_to_type {};
-    //
-    // were removed, since the regression logs (as of 24 Aug 2008)
-    // showed that several compilers had troubles with recognizing
-    //
-    //   const mode m = access_by_bytes
-    //
-    // as a constant expression
-    //
-    // * So, we'll use bool, instead of enum *.
-    //
-    template <bool value>
-    struct value_to_type
+template< typename T >
+struct is_numeric
+{
+    enum
     {
-        value_to_type() {}
+        value = false
     };
-    const bool access_by_bytes = true;
-    const bool access_by_blocks = false;
+};
 
+#define BOOST_dynamic_bitset_is_numeric( x ) \
+    template<>                               \
+    struct is_numeric< x >                   \
+    {                                        \
+        enum                                 \
+        {                                    \
+            value = true                     \
+        };                                   \
+    } /**/
 
-    // the table: wrapped in a class template, so
-    // that it is only instantiated if/when needed
-    //
-    template <bool dummy_name = true>
-    struct count_table { static const byte_type table[]; };
-
-    template <>
-    struct count_table<false> { /* no table */ };
-
-
-    const unsigned int table_width = 8;
-    template <bool b>
-    const byte_type count_table<b>::table[] =
-    {
-        // Automatically generated by GPTableGen.exe v.1.0
-        //
-        0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-        1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-        1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-        2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-        1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-        2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-        2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-        3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8
-    };
-
-
-    // Some platforms have fast popcount operation, that allow us to implement
-    // counting bits much more efficiently
-    //
-    template <typename ValueType>
-    BOOST_FORCEINLINE std::size_t popcount(ValueType value) BOOST_NOEXCEPT
-    {
-        std::size_t num = 0u;
-        while (value) {
-            num += count_table<>::table[value & ((1u<<table_width) - 1)];
-            value >>= table_width;
-        }
-        return num;
-    }
-
-#if (((defined(BOOST_MSVC) && (BOOST_MSVC >= 1600)) || (defined(__clang__) && defined(__c2__)) || (defined(BOOST_INTEL) && defined(_MSC_VER))) && (defined(_M_IX86) || defined(_M_X64))) \
-    && (defined(__POPCNT__) || defined(__AVX__))
-
-    template <>
-    BOOST_FORCEINLINE std::size_t popcount<unsigned short>(unsigned short value) BOOST_NOEXCEPT
-    {
-        return static_cast<std::size_t>(__popcnt16(value));
-    }
-
-    template <>
-    BOOST_FORCEINLINE std::size_t popcount<unsigned int>(unsigned int value) BOOST_NOEXCEPT
-    {
-        return static_cast<std::size_t>(__popcnt(value));
-    }
-
-    template <>
-    BOOST_FORCEINLINE std::size_t popcount<unsigned __int64>(unsigned __int64 value) BOOST_NOEXCEPT
-    {
-#if defined(_M_X64)
-        return static_cast<std::size_t>(__popcnt64(value));
-#else
-        return static_cast<std::size_t>(__popcnt(static_cast< unsigned int >(value))) + static_cast<std::size_t>(__popcnt(static_cast< unsigned int >(value >> 32)));
-#endif
-    }
-
-#elif defined(BOOST_GCC) || defined(__clang__) || (defined(BOOST_INTEL) && defined(__GNUC__))
-
-    // Note: gcc builtins are implemented by compiler runtime when the target CPU may not support the necessary instructions
-    template <>
-    BOOST_FORCEINLINE std::size_t popcount<unsigned short>(unsigned short value) BOOST_NOEXCEPT
-    {
-        return static_cast<unsigned int>(__builtin_popcount(static_cast<unsigned int>(value)));
-    }
-
-    template <>
-    BOOST_FORCEINLINE std::size_t popcount<unsigned int>(unsigned int value) BOOST_NOEXCEPT
-    {
-        return static_cast<unsigned int>(__builtin_popcount(value));
-    }
-
-    template <>
-    BOOST_FORCEINLINE std::size_t popcount<unsigned long>(unsigned long value) BOOST_NOEXCEPT
-    {
-        return static_cast<unsigned int>(__builtin_popcountl(value));
-    }
-
-    template <>
-    BOOST_FORCEINLINE std::size_t popcount<boost::ulong_long_type>(boost::ulong_long_type value) BOOST_NOEXCEPT
-    {
-        return static_cast<unsigned int>(__builtin_popcountll(value));
-    }
+BOOST_dynamic_bitset_is_numeric( bool );
+BOOST_dynamic_bitset_is_numeric( char );
 
+#if ! defined( BOOST_NO_INTRINSIC_WCHAR_T )
+BOOST_dynamic_bitset_is_numeric( wchar_t );
 #endif
 
-    // overload for access by blocks
-    //
-    template <typename Iterator, typename ValueType>
-    inline std::size_t do_count(Iterator first, std::size_t length, ValueType,
-                                value_to_type<access_by_blocks>*)
-    {
-        std::size_t num1 = 0u, num2 = 0u;
-        while (length >= 2u) {
-            num1 += popcount<ValueType>(*first);
-            ++first;
-            num2 += popcount<ValueType>(*first);
-            ++first;
-            length -= 2u;
-        }
+BOOST_dynamic_bitset_is_numeric( signed char );
+BOOST_dynamic_bitset_is_numeric( short );
+BOOST_dynamic_bitset_is_numeric( int );
+BOOST_dynamic_bitset_is_numeric( long );
+BOOST_dynamic_bitset_is_numeric( long long );
 
-        if (length > 0u)
-            num1 += popcount<ValueType>(*first);
+BOOST_dynamic_bitset_is_numeric( unsigned char );
+BOOST_dynamic_bitset_is_numeric( unsigned short );
+BOOST_dynamic_bitset_is_numeric( unsigned int );
+BOOST_dynamic_bitset_is_numeric( unsigned long );
+BOOST_dynamic_bitset_is_numeric( unsigned long long );
 
-        return num1 + num2;
-    }
-
-    // overload for access by bytes
-    //
-    template <typename Iterator>
-    inline std::size_t do_count(Iterator first, std::size_t length,
-                                int /*dummy param*/,
-                                value_to_type<access_by_bytes>*)
-    {
-        if (length > 0u) {
-            const byte_type* p = object_representation(&*first);
-            length *= sizeof(*first);
-
-            return do_count(p, length, static_cast<byte_type>(0u),
-                static_cast< value_to_type<access_by_blocks>* >(0));
-        }
-
-        return 0u;
-    }
-
-    // -------------------------------------------------------
-
-
-    // Some library implementations simply return a dummy
-    // value such as
-    //
-    //   size_type(-1) / sizeof(T)
-    //
-    // from vector<>::max_size. This tries to get more
-    // meaningful info.
-    //
-    template <typename T>
-    inline typename T::size_type vector_max_size_workaround(const T & v)
-        BOOST_NOEXCEPT
-    {
-        typedef typename T::allocator_type allocator_type;
-
-        const allocator_type& alloc = v.get_allocator();
-
-        typename boost::allocator_size_type<allocator_type>::type alloc_max =
-            boost::allocator_max_size(alloc);
-
-        const typename T::size_type container_max = v.max_size();
-
-        return alloc_max < container_max ? alloc_max : container_max;
-    }
-
-    // for static_asserts
-    template <typename T>
-    struct allowed_block_type {
-        enum { value = T(-1) > 0 }; // ensure T has no sign
-    };
-
-    template <>
-    struct allowed_block_type<bool> {
-        enum { value = false };
-    };
-
-
-    template <typename T>
-    struct is_numeric {
-        enum { value = false };
-    };
-
-#   define BOOST_dynamic_bitset_is_numeric(x)       \
-                template<>                          \
-                struct is_numeric< x > {            \
-                    enum { value = true };          \
-                }                                /**/
-
-    BOOST_dynamic_bitset_is_numeric(bool);
-    BOOST_dynamic_bitset_is_numeric(char);
-
-#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
-    BOOST_dynamic_bitset_is_numeric(wchar_t);
-#endif
-
-    BOOST_dynamic_bitset_is_numeric(signed char);
-    BOOST_dynamic_bitset_is_numeric(short int);
-    BOOST_dynamic_bitset_is_numeric(int);
-    BOOST_dynamic_bitset_is_numeric(long int);
-
-    BOOST_dynamic_bitset_is_numeric(unsigned char);
-    BOOST_dynamic_bitset_is_numeric(unsigned short);
-    BOOST_dynamic_bitset_is_numeric(unsigned int);
-    BOOST_dynamic_bitset_is_numeric(unsigned long);
-
-#if defined(BOOST_HAS_LONG_LONG)
-    BOOST_dynamic_bitset_is_numeric(::boost::long_long_type);
-    BOOST_dynamic_bitset_is_numeric(::boost::ulong_long_type);
-#endif
-
-    // intentionally omitted
-    //BOOST_dynamic_bitset_is_numeric(float);
-    //BOOST_dynamic_bitset_is_numeric(double);
-    //BOOST_dynamic_bitset_is_numeric(long double);
+// intentionally omitted
+// BOOST_dynamic_bitset_is_numeric(float);
+// BOOST_dynamic_bitset_is_numeric(double);
+// BOOST_dynamic_bitset_is_numeric(long double);
 
 #undef BOOST_dynamic_bitset_is_numeric
 
-  } // dynamic_bitset_impl
-  } // namespace detail
+} // dynamic_bitset_impl
+} // namespace detail
 
 } // namespace boost
 
 #endif // include guard
-

include/boost/dynamic_bitset/detail/lowest_bit.hpp

@@ -1,7 +1,7 @@
 // -----------------------------------------------------------
-// lowest_bit.hpp
+//                       lowest_bit()
 //
-//           Position of the lowest bit 'on'
+//          Position of the lowest bit that is set.
 //
 //      Copyright (c) 2003-2004, 2008, 2025 Gennaro Prota
 //
@@ -15,25 +15,22 @@
 #define BOOST_LOWEST_BIT_HPP_GP_20030301
 
 #include "boost/assert.hpp"
-#include "boost/integer/integer_log2.hpp"
+#include "boost/core/bit.hpp"
+#include <type_traits>
 
 namespace boost {
 namespace detail {
 
-    template <typename T>
-    int lowest_bit(T x) {
+template< typename T >
+int
+lowest_bit( T x )
+{
+    BOOST_ASSERT( x >= 1 );
 
-        BOOST_ASSERT(x >= 1); // PRE
-
-        // clear all bits on except the rightmost one,
-        // then calculate the logarithm base 2
-        //
-        return boost::integer_log2<T>( x - ( x & (x-1) ) );
-
-    }
+    return boost::core::countr_zero( static_cast< typename std::make_unsigned< T >::type >( x ) );
+}
 
 }
 }
 
-
 #endif // include guard

include/boost/dynamic_bitset/serialization.hpp

@@ -16,31 +16,34 @@
 
 namespace boost {
 
-    // implementation for optional zero-copy serialization support
-    template <typename Block, typename Allocator>
-        class dynamic_bitset<Block, Allocator>::serialize_impl
-        {
-            public:
-                template <typename Ar> 
-                static void serialize(Ar& ar, dynamic_bitset<Block, Allocator>& bs, unsigned) {
-                    ar & boost::make_nvp("m_num_bits", bs.m_num_bits)
-                       & boost::make_nvp("m_bits", bs.m_bits);
-                }
-        };
+// implementation for optional zero-copy serialization support
+template< typename Block, typename Allocator >
+class dynamic_bitset< Block, Allocator >::serialize_impl
+{
+public:
+    template< typename Ar >
+    static void
+    serialize( Ar & ar, dynamic_bitset< Block, Allocator > & bs, unsigned )
+    {
+        ar & boost::make_nvp( "m_num_bits", bs.m_num_bits )
+            & boost::make_nvp( "m_bits", bs.m_bits );
+    }
+};
 
 }
 
 // ADL hook to Boost Serialization library
 namespace boost {
-    namespace serialization {
+namespace serialization {
 
-        template <typename Ar, typename Block, typename Allocator>
-            void serialize(Ar& ar, dynamic_bitset<Block, Allocator>& bs, unsigned version) {
-                dynamic_bitset<Block, Allocator>::serialize_impl::serialize(ar, bs, version);
-            }
+template< typename Ar, typename Block, typename Allocator >
+void
+serialize( Ar & ar, dynamic_bitset< Block, Allocator > & bs, unsigned version )
+{
+    dynamic_bitset< Block, Allocator >::serialize_impl::serialize( ar, bs, version );
+}
 
-    } // namespace serialization
+} // namespace serialization
 } // namespace boost
 
 #endif // include guard
-

include/boost/dynamic_bitset_fwd.hpp

@@ -16,8 +16,7 @@
 
 namespace boost {
 
-template <typename Block = unsigned long,
-          typename Allocator = std::allocator<Block> >
+template< typename Block = unsigned long, typename AllocatorOrContainer = std::allocator< Block > >
 class dynamic_bitset;
 
 }

index.html

@@ -1,15 +1,15 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
-<meta http-equiv=refresh content="0; URL=dynamic_bitset.html">
+<meta http-equiv=refresh content="0; URL=doc/html/index.html">
 <title>Automatic redirection</title>
 </head>
 <body>
 Automatic redirection failed, please go to
-<a href="dynamic_bitset.html">dynamic_bitset.html</a>.&nbsp;<hr>
+<a href="dynamic_bitset.html">doc/html/index.html</a>.&nbsp;<hr>
 <p>© Copyright Beman Dawes, 2001</p>
-<p>Distributed under the Boost Software License, Version 1.0. (See accompanying 
-file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy 
+<p>Distributed under the Boost Software License, Version 1.0. (See accompanying
+file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy
 at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
 </body>
 </html>

meta/explicit-failures-markup.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<explicit-failures-markup>
+    <library name="dynamic_bitset">
+        <mark-unusable>
+            <toolset name="*c++98"/>
+            <toolset name="*gnu98"/>
+            <toolset name="*c++0x"/>
+            <toolset name="*gnu0x"/>
+            <toolset name="msvc-7.1"/>
+            <toolset name="msvc-8.*"/>
+            <toolset name="msvc-9.*"/>
+            <toolset name="msvc-10.*"/>
+            <toolset name="msvc-11.*"/>
+            <note author="Gennaro Prota">DynamicBitset requires at least C++11.</note>
+        </mark-unusable>
+    </library>
+</explicit-failures-markup>

meta/libraries.json

@@ -6,7 +6,6 @@
         "Chuck Allison"
     ],
     "description": "The dynamic_bitset template represents a set of bits. It provides access to the value of individual bits via operator[] and provides all of the bitwise operators that one can apply to builtin integers, such as operator& and operator<<. The number of bits in the set can change at runtime.",
-    "documentation": "dynamic_bitset.html",
     "category": [
         "Data structures"
     ],

test/dyn_bitset_unit_tests2.cpp

@@ -11,373 +11,377 @@
 // -----------------------------------------------------------
 
 #include "bitset_test.hpp"
-#include "boost/config.hpp"
 #include "boost/dynamic_bitset/dynamic_bitset.hpp"
 
-
-template <typename Block>
-void run_test_cases( BOOST_EXPLICIT_TEMPLATE_TYPE(Block) )
+template< typename Block, typename AllocatorOrContainer = std::allocator< Block > >
+void
+run_test_cases()
 {
-  typedef boost::dynamic_bitset<Block> bitset_type;
-  typedef bitset_test< bitset_type > Tests;
-  const int bits_per_block = bitset_type::bits_per_block;
+    typedef boost::dynamic_bitset< Block, AllocatorOrContainer > bitset_type;
+    typedef bitset_test< bitset_type >     Tests;
+    const int                              bits_per_block = bitset_type::bits_per_block;
 
-  std::string long_string = get_long_string();
+    const std::string                      long_string    = get_long_string();
 
-  //=====================================================================
-  // Test operator&=
-  {
-    boost::dynamic_bitset<Block> lhs, rhs;
-    Tests::and_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(std::string("1")), rhs(std::string("0"));
-    Tests::and_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(long_string.size(), 0), rhs(long_string);
-    Tests::and_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(long_string.size(), 1), rhs(long_string);
-    Tests::and_assignment(lhs, rhs);
-  }
-  //=====================================================================
-  // Test operator |=
-  {
-    boost::dynamic_bitset<Block> lhs, rhs;
-    Tests::or_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(std::string("1")), rhs(std::string("0"));
-    Tests::or_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(long_string.size(), 0), rhs(long_string);
-    Tests::or_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(long_string.size(), 1), rhs(long_string);
-    Tests::or_assignment(lhs, rhs);
-  }
-  //=====================================================================
-  // Test operator^=
-  {
-    boost::dynamic_bitset<Block> lhs, rhs;
-    Tests::xor_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(std::string("1")), rhs(std::string("0"));
-    Tests::xor_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(std::string("0")), rhs(std::string("1"));
-    Tests::xor_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(long_string), rhs(long_string);
-    Tests::xor_assignment(lhs, rhs);
-  }
-  //=====================================================================
-  // Test operator-=
-  {
-    boost::dynamic_bitset<Block> lhs, rhs;
-    Tests::sub_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(std::string("1")), rhs(std::string("0"));
-    Tests::sub_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(std::string("0")), rhs(std::string("1"));
-    Tests::sub_assignment(lhs, rhs);
-  }
-  {
-    boost::dynamic_bitset<Block> lhs(long_string), rhs(long_string);
-    Tests::sub_assignment(lhs, rhs);
-  }
-  //=====================================================================
-  // Test operator<<=
-  { // case pos == 0
-    std::size_t pos = 0;
+    //=====================================================================
+    // Test operator&=
     {
-      boost::dynamic_bitset<Block> b;
-      Tests::shift_left_assignment(b, pos);
+        bitset_type lhs, rhs;
+        Tests::and_assignment( lhs, rhs );
     }
     {
-      boost::dynamic_bitset<Block> b(std::string("1010"));
-      Tests::shift_left_assignment(b, pos);
+        bitset_type lhs( std::string( "1" ) ), rhs( std::string( "0" ) );
+        Tests::and_assignment( lhs, rhs );
     }
     {
-      boost::dynamic_bitset<Block> b(long_string);
-      Tests::shift_left_assignment(b, pos);
+        bitset_type lhs( long_string.size(), 0 ), rhs( long_string );
+        Tests::and_assignment( lhs, rhs );
     }
-  }
-  {
-    // test with both multiple and
-    // non multiple of bits_per_block
-    const int how_many = 10;
-    for (int i = 1; i <= how_many; ++i) {
-        std::size_t     multiple = i * bits_per_block;
-        std::size_t non_multiple = multiple - 1;
-        boost::dynamic_bitset<Block> b(long_string);
+    {
+        bitset_type lhs( long_string.size(), 1 ), rhs( long_string );
+        Tests::and_assignment( lhs, rhs );
+    }
+    //=====================================================================
+    // Test operator |=
+    {
+        bitset_type lhs, rhs;
+        Tests::or_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( std::string( "1" ) ), rhs( std::string( "0" ) );
+        Tests::or_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( long_string.size(), 0 ), rhs( long_string );
+        Tests::or_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( long_string.size(), 1 ), rhs( long_string );
+        Tests::or_assignment( lhs, rhs );
+    }
+    //=====================================================================
+    // Test operator^=
+    {
+        bitset_type lhs, rhs;
+        Tests::xor_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( std::string( "1" ) ), rhs( std::string( "0" ) );
+        Tests::xor_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( std::string( "0" ) ), rhs( std::string( "1" ) );
+        Tests::xor_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( long_string ), rhs( long_string );
+        Tests::xor_assignment( lhs, rhs );
+    }
+    //=====================================================================
+    // Test operator-=
+    {
+        bitset_type lhs, rhs;
+        Tests::sub_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( std::string( "1" ) ), rhs( std::string( "0" ) );
+        Tests::sub_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( std::string( "0" ) ), rhs( std::string( "1" ) );
+        Tests::sub_assignment( lhs, rhs );
+    }
+    {
+        bitset_type lhs( long_string ), rhs( long_string );
+        Tests::sub_assignment( lhs, rhs );
+    }
+    //=====================================================================
+    // Test operator<<=
+    { // case pos == 0
+        std::size_t pos = 0;
+        {
+            bitset_type b;
+            Tests::shift_left_assignment( b, pos );
+        }
+        {
+            bitset_type b( std::string( "1010" ) );
+            Tests::shift_left_assignment( b, pos );
+        }
+        {
+            bitset_type b( long_string );
+            Tests::shift_left_assignment( b, pos );
+        }
+    }
+    {
+        // test with both multiple and
+        // non multiple of bits_per_block
+        const int how_many = 10;
+        for ( int i = 1; i <= how_many; ++i ) {
+            std::size_t                    multiple     = i * bits_per_block;
+            std::size_t                    non_multiple = multiple - 1;
+            bitset_type b( long_string );
 
-        Tests::shift_left_assignment(b, multiple);
-        Tests::shift_left_assignment(b, non_multiple);
+            Tests::shift_left_assignment( b, multiple );
+            Tests::shift_left_assignment( b, non_multiple );
+        }
     }
-  }
-  { // case pos == size()/2
-    std::size_t pos = long_string.size() / 2;
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::shift_left_assignment(b, pos);
-  }
-  { // case pos >= n
-    std::size_t pos = long_string.size();
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::shift_left_assignment(b, pos);
-  }
-  //=====================================================================
-  // Test operator>>=
-  { // case pos == 0
-    std::size_t pos = 0;
-    {
-      boost::dynamic_bitset<Block> b;
-      Tests::shift_right_assignment(b, pos);
+    { // case pos == size()/2
+        std::size_t                    pos = long_string.size() / 2;
+        bitset_type b( long_string );
+        Tests::shift_left_assignment( b, pos );
+    }
+    { // case pos >= n
+        std::size_t                    pos = long_string.size();
+        bitset_type b( long_string );
+        Tests::shift_left_assignment( b, pos );
+    }
+    //=====================================================================
+    // Test operator>>=
+    { // case pos == 0
+        std::size_t pos = 0;
+        {
+            bitset_type b;
+            Tests::shift_right_assignment( b, pos );
+        }
+        {
+            bitset_type b( std::string( "1010" ) );
+            Tests::shift_right_assignment( b, pos );
+        }
+        {
+            bitset_type b( long_string );
+            Tests::shift_right_assignment( b, pos );
+        }
     }
     {
-      boost::dynamic_bitset<Block> b(std::string("1010"));
-      Tests::shift_right_assignment(b, pos);
-    }
-    {
-      boost::dynamic_bitset<Block> b(long_string);
-      Tests::shift_right_assignment(b, pos);
-    }
-  }
-  {
-    // test with both multiple and
-    // non multiple of bits_per_block
-    const int how_many = 10;
-    for (int i = 1; i <= how_many; ++i) {
-        std::size_t     multiple = i * bits_per_block;
-        std::size_t non_multiple = multiple - 1;
-        boost::dynamic_bitset<Block> b(long_string);
+        // test with both multiple and
+        // non multiple of bits_per_block
+        const int how_many = 10;
+        for ( int i = 1; i <= how_many; ++i ) {
+            std::size_t                    multiple     = i * bits_per_block;
+            std::size_t                    non_multiple = multiple - 1;
+            bitset_type b( long_string );
 
-        Tests::shift_right_assignment(b, multiple);
-        Tests::shift_right_assignment(b, non_multiple);
+            Tests::shift_right_assignment( b, multiple );
+            Tests::shift_right_assignment( b, non_multiple );
+        }
     }
+    { // case pos == size()/2
+        std::size_t                    pos = long_string.size() / 2;
+        bitset_type b( long_string );
+        Tests::shift_right_assignment( b, pos );
+    }
+    { // case pos >= n
+        std::size_t                    pos = long_string.size();
+        bitset_type b( long_string );
+        Tests::shift_right_assignment( b, pos );
+    }
+    //=====================================================================
+    // test b.set()
+    {
+        bitset_type b;
+        Tests::set_all( b );
+    }
+    {
+        bitset_type b( std::string( "0" ) );
+        Tests::set_all( b );
+    }
+    {
+        bitset_type b( long_string );
+        Tests::set_all( b );
+    }
+    //=====================================================================
+    // Test b.set(pos)
+    { // case pos >= b.size()
+        bitset_type b;
+        Tests::set_one( b, 0, true );
+        Tests::set_one( b, 0, false );
+    }
+    { // case pos < b.size()
+        bitset_type b( std::string( "0" ) );
+        Tests::set_one( b, 0, true );
+        Tests::set_one( b, 0, false );
+    }
+    { // case pos == b.size() / 2
+        bitset_type b( long_string );
+        Tests::set_one( b, long_string.size() / 2, true );
+        Tests::set_one( b, long_string.size() / 2, false );
+    }
+    //=====================================================================
+    // Test b.set(pos, len)
 
-  }
-  { // case pos == size()/2
-    std::size_t pos = long_string.size() / 2;
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::shift_right_assignment(b, pos);
-  }
-  { // case pos >= n
-    std::size_t pos = long_string.size();
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::shift_right_assignment(b, pos);
-  }
-  //=====================================================================
-  // test b.set()
-  {
-    boost::dynamic_bitset<Block> b;
-    Tests::set_all(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::set_all(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::set_all(b);
-  }
-  //=====================================================================
-  // Test b.set(pos)
-  { // case pos >= b.size()
-    boost::dynamic_bitset<Block> b;
-    Tests::set_one(b, 0, true);
-    Tests::set_one(b, 0, false);
-  }
-  { // case pos < b.size()
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::set_one(b, 0, true);
-    Tests::set_one(b, 0, false);
-  }
-  { // case pos == b.size() / 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::set_one(b, long_string.size()/2, true);
-    Tests::set_one(b, long_string.size()/2, false);
-  }
-  //=====================================================================
-  // Test b.set(pos, len)
-  { // case size is 1
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::set_segment(b, 0, 1, true);
-    Tests::set_segment(b, 0, 1, false);
-  }
-  { // case fill the whole set
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::set_segment(b, 0, b.size(), true);
-    Tests::set_segment(b, 0, b.size(), false);
-  }
-  { // case pos = size / 4, len = size / 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::set_segment(b, b.size() / 4, b.size() / 2, true);
-    Tests::set_segment(b, b.size() / 4, b.size() / 2, false);
-  }
-  { // case pos = block_size / 2, len = size - block_size
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::set_segment(b, boost::dynamic_bitset<Block>::bits_per_block / 2,
-            b.size() - boost::dynamic_bitset<Block>::bits_per_block, true);
-    Tests::set_segment(b, boost::dynamic_bitset<Block>::bits_per_block / 2,
-            b.size() - boost::dynamic_bitset<Block>::bits_per_block, false);
-  }
-  { // case pos = 1, len = size - 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::set_segment(b, 1, b.size() - 2, true);
-    Tests::set_segment(b, 1, b.size() - 2, false);
-  }
-  { // case pos = 3, len = 7
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::set_segment(b, 3, 7, true);
-    Tests::set_segment(b, 3, 7, false);
-  }
-  //=====================================================================
-  // Test b.reset()
-  {
-    boost::dynamic_bitset<Block> b;
-    Tests::reset_all(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::reset_all(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::reset_all(b);
-  }
-  //=====================================================================
-  // Test b.reset(pos)
-  { // case pos >= b.size()
-    boost::dynamic_bitset<Block> b;
-    Tests::reset_one(b, 0);
-  }
-  { // case pos < b.size()
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::reset_one(b, 0);
-  }
-  { // case pos == b.size() / 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::reset_one(b, long_string.size()/2);
-  }
-  //=====================================================================
-  // Test b.reset(pos, len)
-  { // case size is 1
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::reset_segment(b, 0, 1);
-  }
-  { // case fill the whole set
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::reset_segment(b, 0, b.size());
-  }
-  { // case pos = size / 4, len = size / 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::reset_segment(b, b.size() / 4, b.size() / 2);
-  }
-  { // case pos = block_size / 2, len = size - block_size
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::reset_segment(b, boost::dynamic_bitset<Block>::bits_per_block / 2,
-            b.size() - boost::dynamic_bitset<Block>::bits_per_block);
-  }
-  { // case pos = 1, len = size - 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::reset_segment(b, 1, b.size() - 2);
-  }
-  { // case pos = 3, len = 7
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::reset_segment(b, 3, 7);
-  }
-  //=====================================================================
-  // Test ~b
-  {
-    boost::dynamic_bitset<Block> b;
-    Tests::operator_flip(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(std::string("1"));
-    Tests::operator_flip(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::operator_flip(b);
-  }
-  //=====================================================================
-  // Test b.flip()
-  {
-    boost::dynamic_bitset<Block> b;
-    Tests::flip_all(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(std::string("1"));
-    Tests::flip_all(b);
-  }
-  {
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::flip_all(b);
-  }
-  //=====================================================================
-  // Test b.flip(pos)
-  { // case pos >= b.size()
-    boost::dynamic_bitset<Block> b;
-    Tests::flip_one(b, 0);
-  }
-  { // case pos < b.size()
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::flip_one(b, 0);
-  }
-  { // case pos == b.size() / 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::flip_one(b, long_string.size()/2);
-  }
-  //=====================================================================
-  // Test b.flip(pos, len)
-  { // case size is 1
-    boost::dynamic_bitset<Block> b(std::string("0"));
-    Tests::flip_segment(b, 0, 1);
-  }
-  { // case fill the whole set
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::flip_segment(b, 0, b.size());
-  }
-  { // case pos = size / 4, len = size / 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::flip_segment(b, b.size() / 4, b.size() / 2);
-  }
-  { // case pos = block_size / 2, len = size - block_size
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::flip_segment(b, boost::dynamic_bitset<Block>::bits_per_block / 2,
-            b.size() - boost::dynamic_bitset<Block>::bits_per_block);
-  }
-  { // case pos = 1, len = size - 2
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::flip_segment(b, 1, b.size() - 2);
-  }
-  { // case pos = 3, len = 7
-    boost::dynamic_bitset<Block> b(long_string);
-    Tests::flip_segment(b, 3, 7);
-  }
+      // case size is 0
+    {
+        bitset_type b( std::string( "10" ) ) ;
+        Tests::set_segment( b, 0, 0, true );
+        Tests::set_segment( b, 0, 0, false );
+    }
+    { // case size is 1
+        bitset_type b( std::string( "0" ) );
+        Tests::set_segment( b, 0, 1, true );
+        Tests::set_segment( b, 0, 1, false );
+    }
+    { // case fill the whole set
+        bitset_type b( long_string );
+        Tests::set_segment( b, 0, b.size(), true );
+        Tests::set_segment( b, 0, b.size(), false );
+    }
+    { // case pos = size / 4, len = size / 2
+        bitset_type b( long_string );
+        Tests::set_segment( b, b.size() / 4, b.size() / 2, true );
+        Tests::set_segment( b, b.size() / 4, b.size() / 2, false );
+    }
+    { // case pos = block_size / 2, len = size - block_size
+        bitset_type b( long_string );
+        Tests::set_segment( b, bitset_type::bits_per_block / 2, b.size() - bitset_type::bits_per_block, true );
+        Tests::set_segment( b, bitset_type::bits_per_block / 2, b.size() - bitset_type::bits_per_block, false );
+    }
+    { // case pos = 1, len = size - 2
+        bitset_type b( long_string );
+        Tests::set_segment( b, 1, b.size() - 2, true );
+        Tests::set_segment( b, 1, b.size() - 2, false );
+    }
+    { // case pos = 3, len = 7
+        bitset_type b( long_string );
+        Tests::set_segment( b, 3, 7, true );
+        Tests::set_segment( b, 3, 7, false );
+    }
+    //=====================================================================
+    // Test b.reset()
+    {
+        bitset_type b;
+        Tests::reset_all( b );
+    }
+    {
+        bitset_type b( std::string( "0" ) );
+        Tests::reset_all( b );
+    }
+    {
+        bitset_type b( long_string );
+        Tests::reset_all( b );
+    }
+    //=====================================================================
+    // Test b.reset(pos)
+    { // case pos >= b.size()
+        bitset_type b;
+        Tests::reset_one( b, 0 );
+    }
+    { // case pos < b.size()
+        bitset_type b( std::string( "0" ) );
+        Tests::reset_one( b, 0 );
+    }
+    { // case pos == b.size() / 2
+        bitset_type b( long_string );
+        Tests::reset_one( b, long_string.size() / 2 );
+    }
+    //=====================================================================
+    // Test b.reset(pos, len)
+    { // case size is 1
+        bitset_type b( std::string( "0" ) );
+        Tests::reset_segment( b, 0, 1 );
+    }
+    { // case fill the whole set
+        bitset_type b( long_string );
+        Tests::reset_segment( b, 0, b.size() );
+    }
+    { // case pos = size / 4, len = size / 2
+        bitset_type b( long_string );
+        Tests::reset_segment( b, b.size() / 4, b.size() / 2 );
+    }
+    { // case pos = block_size / 2, len = size - block_size
+        bitset_type b( long_string );
+        Tests::reset_segment( b, bitset_type::bits_per_block / 2, b.size() - bitset_type::bits_per_block );
+    }
+    { // case pos = 1, len = size - 2
+        bitset_type b( long_string );
+        Tests::reset_segment( b, 1, b.size() - 2 );
+    }
+    { // case pos = 3, len = 7
+        bitset_type b( long_string );
+        Tests::reset_segment( b, 3, 7 );
+    }
+    //=====================================================================
+    // Test ~b
+    {
+        bitset_type b;
+        Tests::operator_flip( b );
+    }
+    {
+        bitset_type b( std::string( "1" ) );
+        Tests::operator_flip( b );
+    }
+    {
+        bitset_type b( long_string );
+        Tests::operator_flip( b );
+    }
+    //=====================================================================
+    // Test b.flip()
+    {
+        bitset_type b;
+        Tests::flip_all( b );
+    }
+    {
+        bitset_type b( std::string( "1" ) );
+        Tests::flip_all( b );
+    }
+    {
+        bitset_type b( long_string );
+        Tests::flip_all( b );
+    }
+    //=====================================================================
+    // Test b.flip(pos)
+    { // case pos >= b.size()
+        bitset_type b;
+        Tests::flip_one( b, 0 );
+    }
+    { // case pos < b.size()
+        bitset_type b( std::string( "0" ) );
+        Tests::flip_one( b, 0 );
+    }
+    { // case pos == b.size() / 2
+        bitset_type b( long_string );
+        Tests::flip_one( b, long_string.size() / 2 );
+    }
+    //=====================================================================
+    // Test b.flip(pos, len)
+    { // case size is 1
+        bitset_type b( std::string( "0" ) );
+        Tests::flip_segment( b, 0, 1 );
+    }
+    { // case fill the whole set
+        bitset_type b( long_string );
+        Tests::flip_segment( b, 0, b.size() );
+    }
+    { // case pos = size / 4, len = size / 2
+        bitset_type b( long_string );
+        Tests::flip_segment( b, b.size() / 4, b.size() / 2 );
+    }
+    { // case pos = block_size / 2, len = size - block_size
+        bitset_type b( long_string );
+        Tests::flip_segment( b, bitset_type::bits_per_block / 2, b.size() - bitset_type::bits_per_block );
+    }
+    { // case pos = 1, len = size - 2
+        bitset_type b( long_string );
+        Tests::flip_segment( b, 1, b.size() - 2 );
+    }
+    { // case pos = 3, len = 7
+        bitset_type b( long_string );
+        Tests::flip_segment( b, 3, 7 );
+    }
 }
 
 int
 main()
 {
-  run_test_cases<unsigned char>();
-  run_test_cases<unsigned short>();
-  run_test_cases<unsigned int>();
-  run_test_cases<unsigned long>();
-# ifdef BOOST_HAS_LONG_LONG
-  run_test_cases< ::boost::ulong_long_type>();
-# endif
+    run_test_cases< unsigned char >();
+    run_test_cases< unsigned char, small_vector< unsigned char > >();
+    run_test_cases< unsigned short >();
+    run_test_cases< unsigned short, small_vector< unsigned short > >();
+    run_test_cases< unsigned int >();
+    run_test_cases< unsigned int, small_vector< unsigned int > >();
+    run_test_cases< unsigned long >();
+    run_test_cases< unsigned long, small_vector< unsigned long > >();
+    run_test_cases< unsigned long long >();
+    run_test_cases< unsigned long long, small_vector< unsigned long long > >();
 
-  return boost::report_errors();
+    return boost::report_errors();
 }

test/dyn_bitset_unit_tests4.cpp

@@ -10,329 +10,304 @@
 
 #include "bitset_test.hpp"
 #include "boost/config.hpp"
-#include "boost/config/workaround.hpp"
 #include "boost/dynamic_bitset/dynamic_bitset.hpp"
-
 #include <assert.h>
 #include <cstddef>
 #include <fstream>
 #include <stdexcept>
 #include <string>
 
-#if !defined (BOOST_NO_STRINGSTREAM)
-# include <sstream>
+#if ! defined( BOOST_NO_STRINGSTREAM )
+#    include <sstream>
 #endif
 
-
-// Codewarrior 8.3 for Win fails without this.
-// Thanks Howard Hinnant ;)
-#if defined __MWERKS__ && BOOST_WORKAROUND(__MWERKS__, <= 0x3003) // 8.x
-# pragma parse_func_templ off
+#if defined BOOST_NO_STD_WSTRING
+#    define BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS
 #endif
 
-
-#if defined BOOST_NO_STD_WSTRING || defined BOOST_NO_STD_LOCALE
-# define BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS
-#endif
-
-#if !defined BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS
-std::wstring widen_string( const std::string & str,
-                           const std::locale & loc = std::locale() )
+#if ! defined BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS
+std::wstring
+widen_string( const std::string & str, const std::locale & loc = std::locale() )
 {
-  std::wstring result;
-  const std::string::size_type len = str.length();
-  if(len != 0) {
+    std::wstring                 result;
+    const std::string::size_type len = str.length();
+    if ( len != 0 ) {
+        typedef std::ctype< wchar_t >     ct_type;
+        typedef std::wstring::traits_type tr_type;
+        const ct_type &                   ct = std::use_facet< ct_type >( loc );
 
-    typedef std::ctype<wchar_t> ct_type;
-    typedef std::wstring::traits_type tr_type;
-    const ct_type & ct = BOOST_USE_FACET(ct_type, loc);
-
-    result.resize(len);
-    for (std::size_t i = 0; i < len; ++i)
-        tr_type::assign(result[i], ct.widen(str[i]));
-
-  }
-  return result;
+        result.resize( len );
+        for ( std::size_t i = 0; i < len; ++i )
+            tr_type::assign( result[ i ], ct.widen( str[ i ] ) );
+    }
+    return result;
 }
 #endif
 
-template <typename Block>
-void run_test_cases( BOOST_EXPLICIT_TEMPLATE_TYPE(Block) )
+template< typename Block, typename AllocatorOrContainer = std::allocator< Block > >
+void
+run_test_cases()
 {
+    typedef boost::dynamic_bitset< Block, AllocatorOrContainer > bitset_type;
+    typedef bitset_test< bitset_type >     Tests;
 
-  typedef boost::dynamic_bitset<Block> bitset_type;
-  typedef bitset_test<bitset_type> Tests;
+    //=====================================================================
+    // Test stream operator<<
+    {
+        // The test "variables" are: the stream type and its state, the
+        // exception mask, the width, the fill char and the padding side (left/right)
 
-  //=====================================================================
-  // Test stream operator<<
-  {
+        std::ios::iostate masks[] = {
+            std::ios::goodbit,
+            std::ios::eofbit,
+            std::ios::failbit,
+            std::ios::eofbit | std::ios::failbit
+        };
 
-    // The test "variables" are: the stream type and its state, the
-    // exception mask, the width, the fill char and the padding side (left/right)
+        static std::string strings[] = {
+            std::string( "" ),
+            std::string( "0" ),
+            std::string( "1" ),
+            std::string( "11100" ),
+            get_long_string()
+        };
 
-    std::ios::iostate masks[] = {
-                                  std::ios::goodbit,
-                                  std::ios::eofbit,
-                                  std::ios::failbit,
-                                  std::ios::eofbit | std::ios::failbit
-                                };
+        char         fill_chars[] = { '*', 'x', ' ' };
 
-    static std::string strings[] = {
-                                  std::string(""),
-                                  std::string("0"),
-                                  std::string("1"),
-                                  std::string("11100"),
-                                  get_long_string()
-                                };
+        std::size_t  num_masks    = sizeof( masks ) / sizeof( masks[ 0 ] );
+        std::size_t  num_strings  = sizeof( strings ) / sizeof( strings[ 0 ] );
+        std::size_t  num_chars    = sizeof( fill_chars ) / sizeof( fill_chars[ 0 ] );
 
-    char fill_chars[] =         { '*', 'x', ' ' };
+        std::fstream not_good_stream( "dynamic_bitset_tests - this file shouldn't exist", std::ios::in );
 
-    std::size_t num_masks   = sizeof(masks) / sizeof(masks[0]);
-    std::size_t num_strings = sizeof(strings) / sizeof(strings[0]);
-    std::size_t num_chars   = sizeof(fill_chars) / sizeof(fill_chars[0]);
+        for ( std::size_t mi = 0; mi < num_masks; ++mi ) {
+            for ( std::size_t si = 0; si < num_strings; ++si ) {
+                std::streamsize slen = (std::streamsize)( strings[ si ].length() );
 
-    std::fstream not_good_stream("dynamic_bitset_tests - this file shouldn't exist",
-                                 std::ios::in);
+                assert( ( std::numeric_limits< std::streamsize >::max )() >= (std::streamsize)( 1 + slen * 2 ) );
 
+                for ( std::size_t ci = 0; ci < num_chars; ++ci ) {
+                    // note how "negative widths" are tested too
+                    const std::streamsize widths[]   = { -1 - slen / 2, 0, slen / 2, 1 + slen * 2 };
+                    std::size_t           num_widths = sizeof( widths ) / sizeof( widths[ 0 ] );
 
-    for (std::size_t mi = 0; mi < num_masks; ++mi) {
-      for (std::size_t si = 0; si < num_strings; ++si) {
+                    for ( std::size_t wi = 0; wi < num_widths; ++wi ) {
+                        std::streamsize w = widths[ wi ];
+                        {
+                            // test 0 - stream !good()
+                            if ( not_good_stream.good() )
+                                throw std::logic_error( "Error in operator << tests"
+                                                        " - please, double check" );
+                            bitset_type b( strings[ si ] );
+                            not_good_stream.width( w );
+                            not_good_stream.fill( fill_chars[ ci ] );
+                            try {
+                                not_good_stream.exceptions( masks[ mi ] );
+                            } catch ( ... ) {
+                            }
 
-        std::streamsize slen = (std::streamsize)(strings[si].length());
-
-        assert( (std::numeric_limits<std::streamsize>::max)()
-                 >=(std::streamsize)(1+slen*2) );
-
-        for (std::size_t ci = 0; ci < num_chars; ++ci) {
-
-          // note how "negative widths" are tested too
-          const std::streamsize widths[] = { -1 - slen/2, 0, slen/2, 1 + slen*2 };
-          std::size_t num_widths = sizeof(widths) / sizeof(widths[0]);
-
-          for (std::size_t wi = 0; wi < num_widths; ++wi) {
-            std::streamsize w = widths[wi];
-            {
-              // test 0 - stream !good()
-              if(not_good_stream.good())
-                  throw std::logic_error("Error in operator << tests"
-                                         " - please, double check");
-              bitset_type b(strings[si]);
-              not_good_stream.width(w);
-              not_good_stream.fill(fill_chars[ci]);
-              try { not_good_stream.exceptions(masks[mi]); } catch(...) {}
-
-              Tests::stream_inserter(b, not_good_stream, "<unused_string>");
-            }
-            {
-              // test 1a - file stream
-              scoped_temp_file stf;
-              bitset_type b(strings[si]);
-              std::ofstream file(stf.path().string().c_str(), std::ios::trunc);
-              file.width(w);
-              file.fill(fill_chars[ci]);
-              file.exceptions(masks[mi]);
-              Tests::stream_inserter(b, file, stf.path().string().c_str());
-            }
-            {
-              //NOTE: there are NO string stream tests
-            }
-#if !defined (BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS)
-            {
-              // test 1b - wide file stream
-              scoped_temp_file stf;
-              bitset_type b(strings[si]);
-              std::wofstream file(stf.path().string().c_str());
-              file.width(w);
-              file.fill(fill_chars[ci]);
-              file.exceptions(masks[mi]);
-              Tests::stream_inserter(b, file, stf.path().string().c_str()); 
-            }
+                            Tests::stream_inserter( b, not_good_stream, "<unused_string>" );
+                        }
+                        {
+                            // test 1a - file stream
+                            scoped_temp_file stf;
+                            bitset_type      b( strings[ si ] );
+                            std::ofstream    file( stf.path().string().c_str(), std::ios::trunc );
+                            file.width( w );
+                            file.fill( fill_chars[ ci ] );
+                            file.exceptions( masks[ mi ] );
+                            Tests::stream_inserter( b, file, stf.path().string().c_str() );
+                        }
+                        {
+                            // NOTE: there are NO string stream tests
+                        }
+#if ! defined( BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS )
+                        {
+                            // test 1b - wide file stream
+                            scoped_temp_file stf;
+                            bitset_type      b( strings[ si ] );
+                            std::wofstream   file( stf.path().string().c_str() );
+                            file.width( w );
+                            file.fill( fill_chars[ ci ] );
+                            file.exceptions( masks[ mi ] );
+                            Tests::stream_inserter( b, file, stf.path().string().c_str() );
+                        }
 #endif
-          }
-        }
-      }
-    } // for (; mi..)
+                    }
+                }
+            }
+        } // for (; mi..)
+    }
 
-  }
+    //=====================================================================
+    // Test stream operator>>
+    {
+        // The test "variables" are: the stream type, the exception mask,
+        // the actual contents (and/or state) of the stream, and width.
+        //
+        // With few exceptions, each test case consists of writing a different
+        // assortment of digits and "whitespaces" to a text stream and then checking
+        // that what was written gets read back unchanged. That's NOT guaranteed by
+        // the standard, unless the assortment always ends with a '\n' and satisfies
+        // other conditions (see C99, 7.19.2/2), however it works in practice and is
+        // a good "real life" test. Some characters, such as '\v' and '\f', are not
+        // used exactly because they are the ones which will most likely give problems
+        // on some systems (for instance '\f' could actually be written as a sequence
+        // of new-lines, and we could never be able to read it back)
+        //
+        // Note how the bitset object is not initially empty. That helps checking
+        // that it isn't erroneously clear()ed by operator>>.
 
-  //=====================================================================
-  // Test stream operator>>
-  {
+        std::ios::iostate masks[] = {
+            std::ios::goodbit,
+            std::ios::eofbit,
+            std::ios::failbit,
+            std::ios::eofbit | std::ios::failbit
+        };
 
-  // The test "variables" are: the stream type, the exception mask,
-  // the actual contents (and/or state) of the stream, and width.
-  //
-  // With few exceptions, each test case consists of writing a different
-  // assortment of digits and "whitespaces" to a text stream and then checking
-  // that what was written gets read back unchanged. That's NOT guaranteed by
-  // the standard, unless the assortment always ends with a '\n' and satisfies
-  // other conditions (see C99, 7.19.2/2), however it works in practice and is
-  // a good "real life" test. Some characters, such as '\v' and '\f', are not
-  // used exactly because they are the ones which will most likely give problems
-  // on some systems (for instance '\f' could actually be written as a sequence
-  // of new-lines, and we could never be able to read it back)
-  //
-  // Note how the bitset object is not initially empty. That helps checking
-  // that it isn't erroneously clear()ed by operator>>.
+        const std::string        spaces      = "\t\n "; //"\t\n\v\f ";
 
+        const std::string        long_string = get_long_string();
+        const static std::string strings[]   = {
 
-  std::ios::iostate masks[] = {
-                                std::ios::goodbit,
-                                std::ios::eofbit,
-                                std::ios::failbit,
-                                std::ios::eofbit | std::ios::failbit
-                              };
-
-  const std::string spaces = "\t\n "; //"\t\n\v\f ";
-
-  const std::string long_string = get_long_string();
-  /*const*/ static std::string strings[] = {
-                  // NOTE: "const" gives the usual problems with Borland
-                  //       (in Tests::stream_extractor instantiation)
-
-
-#if !(defined BOOST_BORLANDC     \
-      && BOOST_WORKAROUND(BOOST_RWSTD_VER, BOOST_TESTED_AT(0x20101)))
-                                        // Borland 5.5.1 with RW library crashes
             // empty string
-            std::string(""),
+            std::string( "" ),
             // no bitset
             spaces,
-#endif
+
             // no bitset
-            std::string("x"),
-            std::string("\t  xyz"),
+            std::string( "x" ),
+            std::string( "\t  xyz" ),
 
             // bitset of size 1
-            std::string("0"),
-            std::string("1"),
+            std::string( "0" ),
+            std::string( "1" ),
 
-            std::string("  0  "),
-            std::string("  1  "),
+            std::string( "  0  " ),
+            std::string( "  1  " ),
             spaces + "1",
             "1" + spaces,
             spaces + "1" + spaces,
-            std::string("  x1x  "),
-            std::string("  1x  "),
+            std::string( "  x1x  " ),
+            std::string( "  1x  " ),
 
             // long bitset
             long_string,
             "  " + long_string + " xyz",
             spaces + long_string,
             spaces + long_string + spaces
-    };
+        };
 
+        //-----------------------------------------------------
 
-  //-----------------------------------------------------
+        std::stringstream not_good_stream;
+        not_good_stream << "test";
+        std::string sink;
+        not_good_stream >> sink; // now the stream should be in eof state
 
-  std::stringstream not_good_stream;
-  not_good_stream << "test";
-  std::string sink;
-  not_good_stream >> sink; // now the stream should be in eof state
+        const std::size_t num_masks   = sizeof( masks ) / sizeof( masks[ 0 ] );
+        const std::size_t num_strings = sizeof( strings ) / sizeof( strings[ 0 ] );
 
-  const std::size_t num_masks = sizeof(masks) / sizeof(masks[0]);
-  const std::size_t num_strings = sizeof(strings) / sizeof(strings[0]);
+        for ( std::size_t mi = 0; mi < num_masks; ++mi ) {
+            for ( std::size_t si = 0; si < num_strings; ++si ) {
+                const std::streamsize slen = (std::streamsize)( strings[ si ].length() );
+                assert( ( std::numeric_limits< std::streamsize >::max )() >= (std::streamsize)( 1 + slen * 2 ) );
 
-  for (std::size_t mi = 0; mi < num_masks; ++mi) {
-    for (std::size_t si = 0; si < num_strings; ++si) {
+                std::streamsize widths[]   = { -1, 0, slen / 2, slen, 1 + slen * 2 };
+                std::size_t     num_widths = sizeof( widths ) / sizeof( widths[ 0 ] );
 
-      const std::streamsize slen = (std::streamsize)(strings[si].length());
-      assert((std::numeric_limits<std::streamsize>::max)() >= (std::streamsize)(1+slen*2));
+                for ( std::size_t wi = 0; wi < num_widths; ++wi ) {
+                    const std::streamsize w = widths[ wi ];
 
-      std::streamsize widths[] = { -1, 0, slen/2, slen, 1 + slen*2 };
-      std::size_t num_widths = sizeof(widths) / sizeof(widths[0]);
+                    // test 0 - !good() stream
+                    {
+                        if ( not_good_stream.good() )
+                            throw std::logic_error( "Error in operator >> tests"
+                                                    " - please, double check" );
+                        bitset_type b( 1, 15ul ); // note: b is not empty
+                        not_good_stream.width( w );
+                        try {
+                            not_good_stream.exceptions( masks[ mi ] );
+                        } catch ( ... ) {
+                        }
+                        std::string irrelevant;
+                        Tests::stream_extractor( b, not_good_stream, irrelevant );
+                    }
+                    // test 1a - (narrow) file stream
+                    {
+                        scoped_temp_file stf;
+                        bitset_type      b( 1, 255ul );
+                        {
+                            std::ofstream f( stf.path().string().c_str() );
+                            f << strings[ si ];
+                        }
 
-      for(std::size_t wi = 0; wi < num_widths; ++wi) {
-        const std::streamsize w = widths[wi];
-
-        // test 0 - !good() stream
-        {
-          if(not_good_stream.good())
-            throw std::logic_error("Error in operator >> tests"
-                                   " - please, double check");
-          bitset_type b(1, 15ul); // note: b is not empty
-          not_good_stream.width(w);
-          try { not_good_stream.exceptions(masks[mi]); } catch(...) {}
-          std::string irrelevant;
-          Tests::stream_extractor(b, not_good_stream, irrelevant);
-        }
-        // test 1a - (narrow) file stream
-        {
-          scoped_temp_file stf;
-          bitset_type b(1, 255ul);
-          {
-            std::ofstream f(stf.path().string().c_str());
-            f << strings[si];
-          }
-
-          std::ifstream f(stf.path().string().c_str());
-          f.width(w);
-          f.exceptions(masks[mi]);
-          Tests::stream_extractor(b, f, strings[si]);
-        }
-#if !defined(BOOST_NO_STRINGSTREAM)
-        // test 2a - stringstream
-        {
-          bitset_type b(1, 255ul);
-          std::istringstream stream(strings[si]);
-          stream.width(w);
-          stream.exceptions(masks[mi]);
-          Tests::stream_extractor(b, stream, strings[si]);
-        }
+                        std::ifstream f( stf.path().string().c_str() );
+                        f.width( w );
+                        f.exceptions( masks[ mi ] );
+                        Tests::stream_extractor( b, f, strings[ si ] );
+                    }
+#if ! defined( BOOST_NO_STRINGSTREAM )
+                    // test 2a - stringstream
+                    {
+                        bitset_type        b( 1, 255ul );
+                        std::istringstream stream( strings[ si ] );
+                        stream.width( w );
+                        stream.exceptions( masks[ mi ] );
+                        Tests::stream_extractor( b, stream, strings[ si ] );
+                    }
 #endif
 
-#if !defined(BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS)
-        // test 1b - wchar_t file stream
-        {
-          scoped_temp_file stf;
-          std::wstring wstr = widen_string(strings[si]);
-          bitset_type b(1, 255ul);
-          {
-            std::basic_ofstream<wchar_t> of(stf.path().string().c_str());
-            of << wstr;
-          }
+#if ! defined( BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS )
+                    // test 1b - wchar_t file stream
+                    {
+                        scoped_temp_file stf;
+                        std::wstring     wstr = widen_string( strings[ si ] );
+                        bitset_type      b( 1, 255ul );
+                        {
+                            std::basic_ofstream< wchar_t > of( stf.path().string().c_str() );
+                            of << wstr;
+                        }
 
-          std::basic_ifstream<wchar_t> f(stf.path().string().c_str());
-          f.width(w);
-          f.exceptions(masks[mi]);
-          Tests::stream_extractor(b, f, wstr);
-        }
-        // test 2b - wstringstream
-        {
-          bitset_type b(1, 255ul);
-          std::wstring wstr = widen_string(strings[si]);
+                        std::basic_ifstream< wchar_t > f( stf.path().string().c_str() );
+                        f.width( w );
+                        f.exceptions( masks[ mi ] );
+                        Tests::stream_extractor( b, f, wstr );
+                    }
+                    // test 2b - wstringstream
+                    {
+                        bitset_type         b( 1, 255ul );
+                        std::wstring        wstr = widen_string( strings[ si ] );
 
-          std::wistringstream wstream(wstr);
-          wstream.width(w);
-          wstream.exceptions(masks[mi]);
-          Tests::stream_extractor(b, wstream, wstr);
-        }
+                        std::wistringstream wstream( wstr );
+                        wstream.width( w );
+                        wstream.exceptions( masks[ mi ] );
+                        Tests::stream_extractor( b, wstream, wstr );
+                    }
 #endif // BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS
+                }
+            }
 
-      }
+        } // for ( mi = 0; ...)
     }
-
-  } // for ( mi = 0; ...)
-
-
-  }
-  //=====================================================================
-  // << Any other tests go here >>
-  //         .....
-
+    //=====================================================================
+    // << Any other tests go here >>
+    //         .....
 }
 
-
 int
 main()
 {
-  run_test_cases<unsigned char>();
-  run_test_cases<unsigned short>();
-  run_test_cases<unsigned int>();
-  run_test_cases<unsigned long>();
-# ifdef BOOST_HAS_LONG_LONG
-  run_test_cases< ::boost::ulong_long_type>();
-# endif
+    run_test_cases< unsigned char >();
+    run_test_cases< unsigned char, small_vector< unsigned char > >();
+    run_test_cases< unsigned short >();
+    run_test_cases< unsigned short, small_vector< unsigned short > >();
+    run_test_cases< unsigned int >();
+    run_test_cases< unsigned int, small_vector< unsigned int > >();
+    run_test_cases< unsigned long >();
+    run_test_cases< unsigned long, small_vector< unsigned long > >();
+    run_test_cases< unsigned long long >();
+    run_test_cases< unsigned long long, small_vector< unsigned long long > >();
 
-  return boost::report_errors();
+    return boost::report_errors();
 }

test/dyn_bitset_unit_tests5.cpp

@@ -16,96 +16,95 @@
 #include "boost/archive/xml_iarchive.hpp"
 #include "boost/archive/xml_oarchive.hpp"
 #include "boost/config.hpp"
-#include "boost/config/workaround.hpp"
 #include "boost/dynamic_bitset/serialization.hpp"
 #include "boost/serialization/vector.hpp"
 
-#if !defined (BOOST_NO_STRINGSTREAM)
-# include <sstream>
+#if ! defined( BOOST_NO_STRINGSTREAM )
+#    include <sstream>
 #endif
 
-
-
-// Codewarrior 8.3 for Win fails without this.
-// Thanks Howard Hinnant ;)
-#if defined __MWERKS__ && BOOST_WORKAROUND(__MWERKS__, <= 0x3003) // 8.x
-# pragma parse_func_templ off
-#endif
-
-
-#if defined BOOST_NO_STD_WSTRING || defined BOOST_NO_STD_LOCALE
-# define BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS
+#if defined BOOST_NO_STD_WSTRING
+#    define BOOST_DYNAMIC_BITSET_NO_WCHAR_T_TESTS
 #endif
 
 namespace {
-    template <typename Block>
-        struct SerializableType {
-            boost::dynamic_bitset<Block> x;
+template< typename Block >
+struct SerializableType
+{
+    boost::dynamic_bitset< Block > x;
 
-          private:
-            friend class boost::serialization::access;
-            template <class Archive> void serialize(Archive &ar, const unsigned int) {
-                ar & BOOST_SERIALIZATION_NVP(x);
-            }
-        };
+private:
+    friend class boost::serialization::access;
+    template< class Archive >
+    void
+    serialize( Archive & ar, unsigned int )
+    {
+        ar & BOOST_SERIALIZATION_NVP( x );
+    }
+};
 
-    template <typename Block, typename IArchive, typename OArchive>
-        void test_serialization( BOOST_EXPLICIT_TEMPLATE_TYPE(Block) )
-        {
-            SerializableType<Block> a;
+template< typename Block, typename IArchive, typename OArchive >
+void
+test_serialization()
+{
+    SerializableType< Block > a;
 
-            for (int i=0; i<128; ++i)
-                a.x.resize(11*i, i%2);
+    for ( int i = 0; i < 128; ++i )
+        a.x.resize( 11 * i, i % 2 );
 
-#if !defined (BOOST_NO_STRINGSTREAM)
-            std::stringstream ss;
+#if ! defined( BOOST_NO_STRINGSTREAM )
+    std::stringstream ss;
 
-            // test serialization
-            {
-                OArchive oa(ss);
-                oa << BOOST_SERIALIZATION_NVP(a);
-            }
+    // test serialization
+    {
+        OArchive oa( ss );
+        oa << BOOST_SERIALIZATION_NVP( a );
+    }
 
-            // test de-serialization
-            {
-                IArchive ia(ss);
-                SerializableType<Block> b;
-                ia >> BOOST_SERIALIZATION_NVP(b);
+    // test de-serialization
+    {
+        IArchive                  ia( ss );
+        SerializableType< Block > b;
+        ia >> BOOST_SERIALIZATION_NVP( b );
 
-                assert(a.x == b.x);
-            }
+        BOOST_TEST( a.x == b.x );
+    }
 #else
-#           error "TODO implement file-based test path?"
+#    error "TODO implement file-based test path?"
 #endif
-        }
-
-    template <typename Block>
-        void test_binary_archive( BOOST_EXPLICIT_TEMPLATE_TYPE(Block) ) {
-            test_serialization<Block, boost::archive::binary_iarchive, boost::archive::binary_oarchive>();
-        }
-
-    template <typename Block>
-        void test_xml_archive( BOOST_EXPLICIT_TEMPLATE_TYPE(Block) ) {
-            test_serialization<Block, boost::archive::xml_iarchive, boost::archive::xml_oarchive>();
-        }
 }
 
-template <typename Block>
-void run_test_cases( BOOST_EXPLICIT_TEMPLATE_TYPE(Block) )
+template< typename Block >
+void
+test_binary_archive()
 {
-    test_binary_archive<Block>();
-    test_xml_archive<Block>();
+    test_serialization< Block, boost::archive::binary_iarchive, boost::archive::binary_oarchive >();
 }
 
-int main()
+template< typename Block >
+void
+test_xml_archive()
 {
-    run_test_cases<unsigned char>();
-    run_test_cases<unsigned short>();
-    run_test_cases<unsigned int>();
-    run_test_cases<unsigned long>();
-# ifdef BOOST_HAS_LONG_LONG
-    run_test_cases< ::boost::ulong_long_type>();
-# endif
+    test_serialization< Block, boost::archive::xml_iarchive, boost::archive::xml_oarchive >();
+}
+}
+
+template< typename Block >
+void
+run_test_cases()
+{
+    test_binary_archive< Block >();
+    test_xml_archive< Block >();
+}
+
+int
+main()
+{
+    run_test_cases< unsigned char >();
+    run_test_cases< unsigned short >();
+    run_test_cases< unsigned int >();
+    run_test_cases< unsigned long >();
+    run_test_cases< unsigned long long >();
 
     return boost::report_errors();
 }

test/test_ambiguous_set.cpp

@@ -1,10 +1,5 @@
 //
 // Copyright (C) 2018 James E. King III
-// 
-// Permission to copy, use, modify, sell and distribute this software
-// is granted provided this copyright notice appears in all copies.
-// This software is provided "as is" without express or implied
-// warranty, and with no claim as to its suitability for any purpose.
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
@@ -14,17 +9,18 @@
 #include "boost/core/lightweight_test.hpp"
 #include "boost/dynamic_bitset.hpp"
 
-int main(int, char*[])
+int
+main( int, char *[] )
 {
-    boost::dynamic_bitset<> x(5); // all 0's by default
-    x.set(1, 2);
-    x.set(3, 1, true);
-    x.set(2, 1, false);
-    BOOST_TEST(!x.test(0));
-    BOOST_TEST( x.test(1));
-    BOOST_TEST(!x.test(2));
-    BOOST_TEST( x.test(3));
-    BOOST_TEST(!x.test(4));
+    boost::dynamic_bitset<> x( 5 ); // all 0's by default
+    x.set( 1, 2 );
+    x.set( 3, 1, true );
+    x.set( 2, 1, false );
+    BOOST_TEST( ! x.test( 0 ) );
+    BOOST_TEST( x.test( 1 ) );
+    BOOST_TEST( ! x.test( 2 ) );
+    BOOST_TEST( x.test( 3 ) );
+    BOOST_TEST( ! x.test( 4 ) );
 
     return boost::report_errors();
 }

test/test_boost_hash.cpp

@@ -1,11 +1,6 @@
 //
 // Copyright (C) 2019 James E. King III
 //
-// Permission to copy, use, modify, sell and distribute this software
-// is granted provided this copyright notice appears in all copies.
-// This software is provided "as is" without express or implied
-// warranty, and with no claim as to its suitability for any purpose.
-//
 // 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)
@@ -16,32 +11,33 @@
 #include "boost/dynamic_bitset.hpp"
 #include <set>
 
-int main(int, char*[])
+int
+main( int, char *[] )
 {
-    typedef boost::dynamic_bitset<unsigned long> bitset_type;
-    const std::string long_string =
+    typedef boost::dynamic_bitset< unsigned long > bitset_type;
+    const std::string                              long_string =
         "01001110101110110101011010000000000011110101101111111111";
     const std::string long_string_prime_begin =
         "11001110101110110101011010000000000011110101101111111111";
     const std::string long_string_prime_end =
         "01001110101110110101011010000000000011110101101111111110";
 
-    bitset_type zeroes(long_string.size(), 0);
-    bitset_type stuff (long_string);
-    bitset_type stupb (long_string_prime_begin);
-    bitset_type stupe (long_string_prime_end);
-    bitset_type ones  (long_string.size(), 1);
+    bitset_type                zeroes( long_string.size(), 0 );
+    bitset_type                stuff( long_string );
+    bitset_type                stupb( long_string_prime_begin );
+    bitset_type                stupe( long_string_prime_end );
+    bitset_type                ones( long_string.size(), 1 );
 
-    boost::hash<bitset_type> bitset_hasher;
-    std::set<std::size_t> results;
-    results.insert(bitset_hasher(zeroes));
-    results.insert(bitset_hasher(stuff));
-    results.insert(bitset_hasher(stupb));
-    results.insert(bitset_hasher(stupe));
-    results.insert(bitset_hasher(ones));
+    boost::hash< bitset_type > bitset_hasher;
+    std::set< std::size_t >    results;
+    results.insert( bitset_hasher( zeroes ) );
+    results.insert( bitset_hasher( stuff ) );
+    results.insert( bitset_hasher( stupb ) );
+    results.insert( bitset_hasher( stupe ) );
+    results.insert( bitset_hasher( ones ) );
 
     // if any hash is identical to another there will be less than 5
-    BOOST_TEST_EQ(results.size(), 5);
+    BOOST_TEST_EQ( results.size(), 5 );
 
     return boost::report_errors();
 }

test/test_lowest_bit.cpp

@@ -1,10 +1,5 @@
 //
 // Copyright (C) 2018 James E. King III
-// 
-// Permission to copy, use, modify, sell and distribute this software
-// is granted provided this copyright notice appears in all copies.
-// This software is provided "as is" without express or implied
-// warranty, and with no claim as to its suitability for any purpose.
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
@@ -15,14 +10,15 @@
 #include "boost/cstdint.hpp"
 #include "boost/dynamic_bitset/detail/lowest_bit.hpp"
 
-int main(int, char*[])
+int
+main( int, char *[] )
 {
-    for (boost::int32_t i = 1; i < 32; ++i) {
-	BOOST_TEST_EQ(i, boost::detail::lowest_bit(1u << i));
+    for ( boost::int32_t i = 1; i < 32; ++i ) {
+        BOOST_TEST_EQ( i, boost::detail::lowest_bit( 1u << i ) );
     }
 
-    BOOST_TEST_EQ(2, boost::detail::lowest_bit(123456788));
-    BOOST_TEST_EQ(30, boost::detail::lowest_bit(static_cast<boost::int64_t>(1507208177123328)));
+    BOOST_TEST_EQ( 2, boost::detail::lowest_bit( 123456788 ) );
+    BOOST_TEST_EQ( 30, boost::detail::lowest_bit( static_cast< boost::int64_t >( 1507208177123328 ) ) );
 
     return boost::report_errors();
 }

test/test_std_hash.cpp

@@ -1,39 +1,40 @@
 //
 // Copyright (C) 2019 James E. King III
-//
-// Permission to copy, use, modify, sell and distribute this software
-// is granted provided this copyright notice appears in all copies.
-// This software is provided "as is" without express or implied
-// warranty, and with no claim as to its suitability for any purpose.
+// Copyright (C) 2025 Gennaro Prota
 //
 // 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)
 //
 
-#include "boost/config.hpp"
-#include "boost/detail/lightweight_test.hpp"
+#include "boost/core/lightweight_test.hpp"
 #include "boost/dynamic_bitset.hpp"
-
-#include <functional>
 #include <unordered_set>
 
-int main(int, char*[])
+int
+main( int, char *[] )
 {
-    typedef boost::dynamic_bitset<unsigned long> bitset_type;
-    const std::string long_string =
+    typedef boost::dynamic_bitset< unsigned long > bitset_type;
+    const std::string                              long_string =
         "01001110101110110101011010000000000011110101101111111111";
 
-    bitset_type zeroes(long_string.size(), 0);
-    bitset_type stuff (long_string);
-    bitset_type ones  (long_string.size(), 1);
+    // Some bitsets with the same size but different underlying vectors.
+    const bitset_type                 zeroes( long_string.size(), 0 );
+    const bitset_type                 stuff( long_string );
+    const bitset_type                 one( long_string.size(), 1 );
 
-    std::unordered_set<bitset_type> bitsets;
-    bitsets.insert(zeroes);
-    bitsets.insert(stuff);
-    bitsets.insert(ones);
+    // Some bitsets with different sizes but equal underlying vectors.
+    const bitset_type                 zeroes2( 2, 0 );
+    const bitset_type                 zeroes3( 3, 0 );
 
-    BOOST_TEST_EQ(bitsets.size(), 3);
+    std::unordered_set< bitset_type > bitsets;
+    bitsets.insert( zeroes );
+    bitsets.insert( stuff );
+    bitsets.insert( one );
+    bitsets.insert( zeroes2 );
+    bitsets.insert( zeroes3 );
+
+    BOOST_TEST_EQ( bitsets.size(), 5 );
 
     return boost::report_errors();
 }