Merge to Master for v6.0.0

.drone.jsonnet

@@ -37,7 +37,9 @@ local linux_pipeline(name, image, environment, packages = "", sources = [], arch
             commands:
             [
                 'set -e',
-                'wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -',
+                'echo $DRONE_STAGE_MACHINE',
+                'uname -a',
+                'curl -sSL --retry 5 https://apt.llvm.org/llvm-snapshot.gpg.key | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/llvm-snapshot.gpg',
             ] +
             (if sources != [] then [ ('apt-add-repository "' + source + '"') for source in sources ] else []) +
             (if packages != "" then [ 'apt-get update', 'apt-get -y install ' + packages ] else []) +
@@ -68,6 +70,9 @@ local macos_pipeline(name, environment, xcode_version = "12.2", osx_version = "c
             environment: environment + { "DEVELOPER_DIR": "/Applications/Xcode-" + xcode_version + ".app/Contents/Developer" },
             commands:
             [
+                'echo $DRONE_STAGE_MACHINE',
+                'sw_vers',
+                'uname -a',
                 'export LIBRARY=' + library,
                 './.drone/drone.sh',
             ]
@@ -94,6 +99,7 @@ local windows_pipeline(name, image, environment, arch = "amd64") =
             environment: environment,
             commands:
             [
+                'echo $env:DRONE_STAGE_MACHINE',
                 'cmd /C .drone\\\\drone.bat ' + library,
             ]
         }

.drone/drone.bat

@@ -7,8 +7,6 @@
 set LIBRARY=%1
 set DRONE_BUILD_DIR=%CD%
 
-echo $env:DRONE_STAGE_MACHINE
-
 set BOOST_BRANCH=develop
 if "%DRONE_BRANCH%" == "master" set BOOST_BRANCH=master
 cd ..

.drone/drone.sh

@@ -6,8 +6,6 @@
 
 set -ex
 export PATH=~/.local/bin:/usr/local/bin:$PATH
-uname -a
-echo $DRONE_STAGE_MACHINE
 
 DRONE_BUILD_DIR=$(pwd)
 

.github/dependabot.yml

@@ -0,0 +1,15 @@
+# Copyright 2025 Matt Borland
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/doc"
+    schedule:
+      interval: "weekly"
+    groups:
+      all-dependencies:
+        # Groups all updates into a single PR
+        patterns:
+          - "*"

.github/workflows/ci.yml

@@ -246,7 +246,7 @@ jobs:
             linkflags: -stdlib=libc++
           - toolset: clang
             compiler: clang++-16
-            cxxstd: "03,11,14,17,20,2b"
+            cxxstd: "03,11,14,17,20"
             os: ubuntu-latest
             container: ubuntu:22.04
             install:
@@ -286,10 +286,27 @@ jobs:
               - "deb http://apt.llvm.org/noble/ llvm-toolchain-noble-19 main"
             source_keys:
               - "https://apt.llvm.org/llvm-snapshot.gpg.key"
-
           - toolset: clang
+            compiler: clang++-20
             cxxstd: "03,11,14,17,20,2b"
-            os: macos-13
+            os: ubuntu-24.04
+            install:
+              - clang-20
+            sources:
+              - "deb http://apt.llvm.org/noble/ llvm-toolchain-noble-20 main"
+            source_keys:
+              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+          - toolset: clang
+            compiler: clang++-21
+            cxxstd: "03,11,14,17,20,2b"
+            os: ubuntu-24.04
+            install:
+              - clang-21
+            sources:
+              - "deb http://apt.llvm.org/noble/ llvm-toolchain-noble-21 main"
+            source_keys:
+              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+
           - toolset: clang
             cxxstd: "03,11,14,17,20,2b"
             os: macos-14
@@ -392,6 +409,8 @@ jobs:
             sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
             sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y ${{join(matrix.install, ' ')}} locales libfmt-dev
             sudo locale-gen de_DE.UTF-8
+            sudo locale-gen en_US.UTF-8
+            sudo locale-gen fr_FR.UTF-8
             sudo update-locale
       - name: Setup GCC Toolchain
         if: matrix.gcc_toolchain
@@ -532,6 +551,10 @@ jobs:
             cxxstd: "03,11,14,17" # 20 has ICE
             addrmd: "64"
             os: windows-latest
+          - toolset: msvc-14.3
+            cxxstd: "14,17,20,latest"
+            addrmd: "64"
+            os: windows-11-arm
 
     runs-on: ${{matrix.os}}
 
@@ -572,7 +595,6 @@ jobs:
       matrix:
         include:
           - os: ubuntu-24.04
-          - os: macos-13
           - os: macos-14
           - os: macos-15
 
@@ -620,7 +642,6 @@ jobs:
       matrix:
         include:
           - os: ubuntu-24.04
-          - os: macos-13
           - os: macos-14
           - os: macos-15
 
@@ -678,7 +699,6 @@ jobs:
       matrix:
         include:
           - os: ubuntu-24.04
-          - os: macos-13
           - os: macos-14
           - os: macos-15
 
@@ -728,13 +748,70 @@ jobs:
           cd ../boost-root/__build__
           ctest --output-on-failure --no-tests=error
 
+  posix-cmake-test-dectest:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-24.04
+          - os: macos-14
+          - os: macos-15
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install packages
+        if: matrix.install
+        run: sudo apt install ${{matrix.install}}
+
+      - name: Setup Boost
+        run: |
+          echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
+          LIBRARY=${GITHUB_REPOSITORY#*/}
+          echo LIBRARY: $LIBRARY
+          echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
+          echo GITHUB_BASE_REF: $GITHUB_BASE_REF
+          echo GITHUB_REF: $GITHUB_REF
+          REF=${GITHUB_BASE_REF:-$GITHUB_REF}
+          REF=${REF#refs/heads/}
+          echo REF: $REF
+          BOOST_BRANCH=develop && [ "$REF" == "master" ] && BOOST_BRANCH=master || true
+          echo BOOST_BRANCH: $BOOST_BRANCH
+          cd ..
+          git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          mkdir -p libs/$LIBRARY
+          cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+          cd libs/$LIBRARY/test
+          git clone https://github.com/cppalliance/decimal-dectest
+          cd ../../../
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" $LIBRARY
+
+      - name: Configure
+        run: |
+          cd ../boost-root
+          mkdir __build__ && cd __build__
+          cmake -DBOOST_INCLUDE_LIBRARIES=$LIBRARY -DBUILD_TESTING=ON -DBUILD_DECTEST_TESTING=ON ..
+
+      - name: Build tests
+        run: |
+          cd ../boost-root/__build__
+          cmake --build . --target tests
+
+      - name: Run tests
+        run: |
+          cd ../boost-root/__build__
+          ctest --output-on-failure --no-tests=error
+
   posix-standalone-test:
     strategy:
       fail-fast: false
       matrix:
         include:
           - os: ubuntu-24.04
-          - os: macos-13
           - os: macos-14
           - os: macos-15
 
@@ -930,52 +1007,53 @@ jobs:
           g++ main.cpp $(pkg-config --cflags --libs boost_decimal) -o test_pkgconfig
           ./test_pkgconfig
 
-  MSYS2:
-    defaults:
-      run:
-        shell: msys2 {0}
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - { sys: MINGW32, compiler: gcc, cxxstd: '03,11,17,20' }
-          - { sys: MINGW64, compiler: gcc, cxxstd: '03,11,17,20' }
-
-    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
+# Symlink in docs folder breaks these runs
+#  MSYS2:
+#    defaults:
+#      run:
+#        shell: msys2 {0}
+#    strategy:
+#      fail-fast: false
+#      matrix:
+#        include:
+#          - { sys: MINGW32, compiler: gcc, cxxstd: '03,11,17,20' }
+#          - { sys: MINGW64, compiler: gcc, cxxstd: '03,11,17,20' }
+#
+#    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
 
   intel:
     runs-on: ubuntu-latest

.github/workflows/codecov.yml

@@ -1,4 +1,4 @@
-# ------------------------------------------------------------------------------
+# ------------------------------------------------------------------------------
 #  Copyright Matt Borland 2023 - 2024.
 #  Copyright Christopher Kormanyos 2023 - 2024.
 #  Distributed under the Boost Software License,
@@ -17,14 +17,14 @@ on:
     types: [opened, synchronize, reopened]
 jobs:
   gcc-gcov-native:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     defaults:
       run:
         shell: bash
     strategy:
       fail-fast: false
       matrix:
-        standard: [ c++20 ]
+        standard: [ c++2a ]
         compiler: [ g++ ]
     steps:
       - uses: actions/checkout@v4
@@ -50,6 +50,7 @@ jobs:
           git submodule update --init libs/static_assert
           git submodule update --init libs/test
           git submodule update --init libs/random
+          git submodule update --init libs/charconv
           ./bootstrap.sh
           ./b2 headers
       - name: gcc-gcov-native

.gitignore

@@ -39,10 +39,14 @@ test/tidy/err/
 test/tidy/tmp/
 cmake-build-debug/
 test/metal/bin/
+test/decimal-dectest/
 
 # Modules
 *.gcm
 gcm.cache/
 
 # Mac option
 *.DS_Store
+
+# Pretty Printers
+*.pyc

CMakeLists.txt

@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.10...3.20)
 
 # Set version explicitly if not part of Boost superproject
 if(NOT BOOST_SUPERPROJECT_VERSION)
-    set(BOOST_DECIMAL_VERSION 5.2.0)
+    set(BOOST_DECIMAL_VERSION 6.0.0)
 else()
     set(BOOST_DECIMAL_VERSION ${BOOST_SUPERPROJECT_VERSION})
 endif()