Merge pull request #1165 from MusicScience37/fix-error-for-empty-data-in-fbuffer

Fixed processing of empty data in fbuffer class.

.github/depends/boost.sh

@@ -49,9 +49,9 @@ while getopts "b:t:p:" c; do
 done
 
 mkdir $prefix || exit 1
-wget https://boostorg.jfrog.io/artifactory/main/release/1.76.0/source/boost_1_76_0.tar.bz2 || exit 1
-tar xf boost_1_76_0.tar.bz2 || exit 1
-cd boost_1_76_0
+wget https://archives.boost.io/release/1.85.0/source/boost_1_85_0.tar.bz2 || exit 1
+tar xf boost_1_85_0.tar.bz2 || exit 1
+cd boost_1_85_0
 ./bootstrap.sh || exit 1
 
 build()

.github/depends/zlib.sh

@@ -27,9 +27,9 @@ while getopts "b:t:p:" c; do
 done
 
 mkdir $prefix || exit 1
-wget https://zlib.net/zlib-1.2.11.tar.gz || exit 1
-tar -xf zlib-1.2.11.tar.gz || exit 1
-cd zlib-1.2.11
+wget https://zlib.net/zlib-1.3.1.tar.gz || exit 1
+tar -xf zlib-1.3.1.tar.gz || exit 1
+cd zlib-1.3.1
 
 build()
 {

.github/workflows/coverage.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - name: Install build dependencies
       run: |
         sudo apt-get update
@@ -24,10 +24,10 @@ jobs:
 
     - name: Cache boost
       id: cache-boost
-      uses: actions/cache@v1
+      uses: actions/cache@v3
       with:
         path: ~/boost-prefix/
-        key: ${{ runner.os }}-boost-64-1-76-0-2021-08-09
+        key: ${{ runner.os }}-boost-1-85-0-2024-05-27
 
     - name: Build boost
       if: steps.cache-boost.outputs.cache-hit != 'true'
@@ -35,7 +35,7 @@ jobs:
 
     - name: Cache zlib
       id: cache-zlib
-      uses: actions/cache@v1
+      uses: actions/cache@v3
       with:
         path: ~/zlib-prefix/
         key: ${{ runner.os }}-zlib-64-1-2-11-2021-08-09
@@ -56,18 +56,22 @@ jobs:
             -D MSGPACK_BUILD_TESTS=ON \
             -D CMAKE_BUILD_TYPE=Debug \
             -D MSGPACK_GEN_COVERAGE=ON \
+            -D MSGPACK_USE_STD_VARIANT_ADAPTOR=ON \
             -D CMAKE_PREFIX_PATH="$HOME/zlib-prefix/64;$HOME/boost-prefix/64" \
             -B build \
             -S . || exit 1
         cmake --build build --target all || exit 1
         ctest --test-dir build || exit 1
 
-    - name: Upload coverage to Codecov
+    - name: Generate coverage
       working-directory: build
       run: |
         # Create lcov report
-        lcov --capture --directory . --output-file coverage.info
+        lcov --capture --directory . --output-file coverage.info --ignore-errors mismatch
         lcov --remove coverage.info '/usr/*' --output-file coverage.info # filter system-files
         lcov --list coverage.info # debug info
-        # Uploading report to CodeCov
-        bash <(curl -s https://codecov.io/bash) -f coverage.info || echo "Codecov did not collect coverage reports"
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v5
+      with:
+        files: build/coverage.info
+        token: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/gha.yml

@@ -18,14 +18,19 @@ jobs:
       matrix:
         pattern: [0, 1, 2, 3, 4]
     steps:
-    - uses: actions/checkout@v2
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Install Dependencies
+      run: |
+        brew update
+        brew install --force llvm
 
     - name: Cache boost
       id: cache-boost
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: ~/boost-prefix/
-        key: ${{ runner.os }}-boost-1-76-0-2021-08-09
+        key: ${{ runner.os }}-boost-1-85-0-2024-05-27
 
     - name: Build boost
       if: steps.cache-boost.outputs.cache-hit != 'true'
@@ -33,10 +38,10 @@ jobs:
 
     - name: Cache zlib
       id: cache-zlib
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: ~/zlib-prefix/
-        key: ${{ runner.os }}-zlib-1-2-11-2021-08-09
+        key: ${{ runner.os }}-zlib-1-2-13-2022-11-02
 
     - name: Build zlib
       if: steps.cache-zlib.outputs.cache-hit != 'true'
@@ -55,7 +60,7 @@ jobs:
 
         case ${{ matrix.pattern }} in
           0)
-            export MSGPACK_CXX_VERSION="MSGPACK_CXX11=OFF"
+            export MSGPACK_CXX_VERSION="MSGPACK_CXX11=ON"
             ;;
           1)
             export API_VERSION=1
@@ -79,13 +84,13 @@ jobs:
 
   linux:
     name: ${{ format('Linux (pattern {0})', matrix.pattern) }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
         pattern: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Install build dependencies
       shell: bash
@@ -97,10 +102,10 @@ jobs:
 
     - name: Cache boost
       id: cache-boost
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: ~/boost-prefix/
-        key: ${{ runner.os }}-boost-1-76-0-2021-08-09
+        key: ${{ runner.os }}-boost-1-85-0-2024-05-27
 
     - name: Build boost
       if: steps.cache-boost.outputs.cache-hit != 'true'
@@ -108,10 +113,10 @@ jobs:
 
     - name: Cache zlib
       id: cache-zlib
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: ~/zlib-prefix/
-        key: ${{ runner.os }}-zlib-1-2-11-2021-08-09
+        key: ${{ runner.os }}-zlib-1-2-13-2022-11-02
 
     - name: Build zlib
       if: steps.cache-zlib.outputs.cache-hit != 'true'
@@ -131,23 +136,24 @@ jobs:
 
         case ${{ matrix.pattern }} in
           0)
-            export CXX="clang++-10"
-            export MSGPACK_CXX_VERSION="MSGPACK_CXX11=OFF"
+            export CXX="clang++"
+            export MSGPACK_CXX_VERSION="MSGPACK_CXX11=ON"
             ;;
           1)
             export CXX="g++-10"
             export MSGPACK_CXX_VERSION="MSGPACK_CXX11=ON"
             ;;
           2)
-            export CXX="clang++-10"
+            export CXX="clang++"
             export MSGPACK_CXX_VERSION="MSGPACK_CXX14=ON"
             ;;
           3)
             export CXX="g++-10"
             export MSGPACK_CXX_VERSION="MSGPACK_CXX17=ON"
+            export MSGPACK_USE_STD_VARIANT_ADAPTOR="MSGPACK_USE_STD_VARIANT_ADAPTOR=ON"
             ;;
           4)
-            export CXX="clang++-10"
+            export CXX="clang++"
             export MSGPACK_CXX_VERSION="MSGPACK_CXX20=ON"
             export NO_BOOST="-DMSGPACK_NO_BOOST"
             ;;
@@ -156,7 +162,7 @@ jobs:
             export ARCH=32
             ;;
           6)
-            export CXX="clang++-10"
+            export CXX="clang++"
             export API_VERSION=2
             ;;
           7)
@@ -164,7 +170,7 @@ jobs:
             export API_VERSION=1
             ;;
           8)
-            export CXX="clang++-10"
+            export CXX="clang++"
             export CHAR_SIGN="unsigned"
             ;;
           9)
@@ -172,7 +178,7 @@ jobs:
             export X3_PARSE="ON"
             ;;
           10)
-            export CXX="clang++-10"
+            export CXX="clang++"
             export ACTION="ci/build_regression.sh"
             ;;
           11)
@@ -189,18 +195,19 @@ jobs:
 
   windows:
     name: ${{ format('Windows cxx{0}', matrix.cxx) }}
-    runs-on: windows-2019
+    runs-on: windows-2022
     strategy:
       fail-fast: false
       matrix:
-        # MSVC2019 only supports /std:c++14, /std:c++17 and /std:c++latest
+        # MSVC2022 only supports /std:c++14, /std:c++17 and /std:c++latest
         cxx: [14, 17, 20]
+        pp_flag: ["/Zc:preprocessor-", "/Zc:preprocessor"]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Cache vcpkg dependencies
       id: cache-vcpkg
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: C:/vcpkg/installed/x64-windows
         key: ${{ runner.os }}-vcpkg-2021-08-09
@@ -221,11 +228,11 @@ jobs:
         md build
         cmake `
             -A x64 `
-            -G "Visual Studio 16 2019" `
+            -G "Visual Studio 17 2022" `
             -D CMAKE_TOOLCHAIN_FILE="C:/vcpkg/scripts/buildsystems/vcpkg.cmake" `
             -D MSGPACK_BUILD_TESTS=ON `
             -D $CPPVER `
-            -D CMAKE_CXX_FLAGS="/D_VARIADIC_MAX=10 /EHsc /D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING /D_SILENCE_CXX17_ALLOCATOR_VOID_DEPRECATION_WARNING /D_SILENCE_CXX17_OLD_ALLOCATOR_MEMBERS_DEPRECATION_WARNING /W3 /WX" `
+            -D CMAKE_CXX_FLAGS="${{ matrix.pp_flag }} /D_VARIADIC_MAX=10 /EHsc /D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING /D_SILENCE_CXX17_ALLOCATOR_VOID_DEPRECATION_WARNING /D_SILENCE_CXX17_OLD_ALLOCATOR_MEMBERS_DEPRECATION_WARNING /W3 /WX" `
             -B build `
             -S .
         if ($LastExitCode -ne 0) { exit $LastExitCode }

.gitignore

@@ -49,3 +49,8 @@ Makefile
 /test/streaming_c
 /test/version
 /test/zone
+
+build
+*-build
+.cache
+compile_commands.json

CHANGELOG.md

@@ -1,3 +1,45 @@
+# 2024-11-02 version 7.0.0
+  * Refine build system (#1133)
+  * Refine CI (#1122)
+  * Refine documents (#1117)
+## << breaking changes >>
+  * Revert double and fload packing behavior (#1144)
+    * If below decimal point is zero (e.g. 2.00),
+      * Before: pack as int format family    `0x02`
+      * After : pack as float format family  `0xcb 0x40 0x00 0x00 0x00 0x00 0x00 0x00 0x00`
+
+# 2024-04-02 version 6.1.1
+  * Fix compilation error when std::variant has the same types (#1112)
+  * Improve CI (#1090, #1110)
+  * Fix to avoid common function name's (has_as::check) ambiguity/conflict with other libraries' macros  (#1085)
+
+# 2023-07-08 version 6.1.0
+  * Remove dependency on boost in chrono.hpp (#1076)
+  * Add support for std::variant behavior (#1075)
+  * Fix msgpack::type::variant behavior to respect MessagePack format (#1071)
+  * Add rebind allocators (#1065)
+
+# 2023-03-02 version 6.0.0
+## << breaking changes >>
+  * Change CMake package name of C++ library to msgpack-cxx (#1054)
+    Unified all C++ package, library, cmake, tarball name become msgpack-cxx.
+
+# 2023-01-10 version 5.0.0 for C++
+ * Fix config for new MSVC preprocessor (#1040)
+## << breaking changes >>
+ * Change CMake package name of C++ library to msgpackc-cxx (#1045, #1048)
+
+# 2022-11-02 version 4.1.3 for C++
+  * Fix compile error that direct inclusion of chrono with `MSGPACK_NO_BOOST` (#1038))
+
+# 2022-09-07 version 4.1.2 for C++
+  * Fix noexcept on zone (#1030)
+  * Improve cmake support (#1028, #1032)
+  * Improve CI (#1023)
+  * Improve supporting platform (#1021)
+  * Refine double/float packing (#1018)
+  * Refine include files dependency (#1011)
+
 # 2022-03-09 version 4.1.1 for C++
   * Remove chrono support on `MSGPACK_NO_BOOST` to fix  compile error.
   * Improve build system (#1003)

CMakeLists.txt

@@ -1,8 +1,8 @@
-CMAKE_MINIMUM_REQUIRED (VERSION 3.1 FATAL_ERROR)
+CMAKE_MINIMUM_REQUIRED (VERSION 3.5...4.0)
 
-CMAKE_POLICY (SET CMP0054 NEW)
+PROJECT (msgpack-cxx LANGUAGES CXX)
 
-PROJECT (msgpack LANGUAGES CXX)
+ADD_LIBRARY (msgpack-cxx INTERFACE)
 
 FILE (READ ${CMAKE_CURRENT_SOURCE_DIR}/include/msgpack/version_master.hpp contents)
 STRING (REGEX MATCH "#define MSGPACK_VERSION_MAJOR *([0-9a-zA-Z_]*)" NULL_OUT ${contents})
@@ -16,21 +16,22 @@ SET (VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_REVISION})
 LIST (APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/")
 SET (GNUCXX_STD_SUPPORT_VERSION "4.3")
 
-OPTION (MSGPACK_CXX11 "Using c++11 compiler" OFF)
+OPTION (MSGPACK_CXX11 "Using c++11 compiler" ON)
 OPTION (MSGPACK_CXX14 "Using c++14 compiler" OFF)
 OPTION (MSGPACK_CXX17 "Using c++17 compiler" OFF)
 OPTION (MSGPACK_CXX20 "Using c++20 compiler" OFF)
 
-OPTION (MSGPACK_32BIT            "32bit compile"                        OFF)
-OPTION (MSGPACK_USE_BOOST        "Use Boost libraried"                  ON)
-OPTION (MSGPACK_USE_X3_PARSE     "Use Boost X3 parse"                   OFF)
-OPTION (MSGPACK_BUILD_TESTS      "Build tests"                          OFF)
-OPTION (MSGPACK_BUILD_DOCS       "Build Doxygen documentation"          ON)
-OPTION (MSGPACK_FUZZ_REGRESSION  "Enable regression testing"            OFF)
-OPTION (MSGPACK_BUILD_EXAMPLES   "Build msgpack examples"               OFF)
-OPTION (MSGPACK_GEN_COVERAGE     "Generate coverage report"             OFF)
-OPTION (MSGPACK_USE_STATIC_BOOST "Statically link with boost libraries" OFF)
-OPTION (MSGPACK_CHAR_SIGN        "Char sign to use (signed or unsigned)")
+OPTION (MSGPACK_32BIT                   "32bit compile"                        OFF)
+OPTION (MSGPACK_USE_BOOST               "Use Boost libraried"                  ON)
+OPTION (MSGPACK_USE_X3_PARSE            "Use Boost X3 parse"                   OFF)
+OPTION (MSGPACK_BUILD_TESTS             "Build tests"                          OFF)
+OPTION (MSGPACK_BUILD_DOCS              "Build Doxygen documentation"          ON)
+OPTION (MSGPACK_FUZZ_REGRESSION         "Enable regression testing"            OFF)
+OPTION (MSGPACK_BUILD_EXAMPLES          "Build msgpack examples"               OFF)
+OPTION (MSGPACK_GEN_COVERAGE            "Generate coverage report"             OFF)
+OPTION (MSGPACK_USE_STATIC_BOOST        "Statically link with boost libraries" OFF)
+OPTION (MSGPACK_CHAR_SIGN               "Char sign to use (signed or unsigned)")
+OPTION (MSGPACK_USE_STD_VARIANT_ADAPTOR "Enable the adaptor for std::variant"  OFF)
 
 SET (CMAKE_CXX_STANDARD_REQUIRED ON)
 
@@ -55,15 +56,19 @@ ENDIF ()
 
 IF (MSGPACK_32BIT)
     IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-        SET (CMAKE_CXX_FLAGS "-m32 ${CMAKE_CXX_FLAGS}")
-        SET (CMAKE_EXE_LINKER_FLAGS "-m32 ${CMAKE_EXE_LINKER_FLAGS}")
+        TARGET_COMPILE_OPTIONS(msgpack-cxx INTERFACE -m32)
+        TARGET_LINK_OPTIONS(msgpack-cxx INTERFACE -m32)
     ELSEIF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
-        SET (CMAKE_CXX_FLAGS "-m32 ${CMAKE_CXX_FLAGS}")
-        SET (CMAKE_EXE_LINKER_FLAGS "-m32 ${CMAKE_EXE_LINKER_FLAGS}")
+        TARGET_COMPILE_OPTIONS(msgpack-cxx INTERFACE -m32)
+        TARGET_LINK_OPTIONS(msgpack-cxx INTERFACE -m32)
     ENDIF ()
 ENDIF ()
 
 IF (MSGPACK_USE_BOOST)
+    IF ((CMAKE_VERSION VERSION_GREATER 3.30) OR
+        (CMAKE_VERSION VERSION_EQUAL 3.30))
+        CMAKE_POLICY(SET CMP0167 NEW)
+    ENDIF ()
     SET (Boost_USE_MULTITHREADED ON)
 
     IF (MSGPACK_USE_STATIC_BOOST)
@@ -76,18 +81,22 @@ IF (MSGPACK_USE_BOOST)
 
     FIND_PACKAGE (Boost REQUIRED)
 ELSE ()
-    SET (CMAKE_CXX_FLAGS "-DMSGPACK_NO_BOOST ${CMAKE_CXX_FLAGS}")
+    TARGET_COMPILE_DEFINITIONS(msgpack-cxx INTERFACE MSGPACK_NO_BOOST)
 ENDIF ()
 
 IF (MSGPACK_CHAR_SIGN)
-    SET (CMAKE_CXX_FLAGS "-f${MSGPACK_CHAR_SIGN}-char ${CMAKE_CXX_FLAGS}")
+    TARGET_COMPILE_OPTIONS(msgpack-cxx INTERFACE -f${MSGPACK_CHAR_SIGN}-char)
 ENDIF ()
 
 IF (MSGPACK_DEFAULT_API_VERSION)
-    SET (CMAKE_CXX_FLAGS "-DMSGPACK_DEFAULT_API_VERSION=${MSGPACK_DEFAULT_API_VERSION} ${CMAKE_CXX_FLAGS}")
+    TARGET_COMPILE_DEFINITIONS(msgpack-cxx INTERFACE MSGPACK_DEFAULT_API_VERSION=${MSGPACK_DEFAULT_API_VERSION})
 ELSE ()
     SET (MSGPACK_DEFAULT_API_VERSION 3)
-    SET (CMAKE_CXX_FLAGS "-DMSGPACK_DEFAULT_API_VERSION=3 ${CMAKE_CXX_FLAGS}")
+    TARGET_COMPILE_DEFINITIONS(msgpack-cxx INTERFACE MSGPACK_DEFAULT_API_VERSION=3)
+ENDIF ()
+
+IF (MSGPACK_USE_STD_VARIANT_ADAPTOR)
+    TARGET_COMPILE_DEFINITIONS(msgpack-cxx INTERFACE MSGPACK_USE_STD_VARIANT_ADAPTOR)
 ENDIF ()
 
 IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
@@ -110,9 +119,7 @@ ENDIF ()
 
 INCLUDE (Files.cmake)
 
-ADD_LIBRARY (msgpackc-cxx INTERFACE)
-
-TARGET_INCLUDE_DIRECTORIES (msgpackc-cxx
+TARGET_INCLUDE_DIRECTORIES (msgpack-cxx
     INTERFACE
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
         $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>
@@ -120,7 +127,7 @@ TARGET_INCLUDE_DIRECTORIES (msgpackc-cxx
 )
 
 IF (MSGPACK_USE_BOOST)
-    TARGET_LINK_LIBRARIES (msgpackc-cxx INTERFACE Boost::boost)
+    TARGET_LINK_LIBRARIES (msgpack-cxx INTERFACE Boost::boost)
 ENDIF ()
 
 IF (MSGPACK_GEN_COVERAGE)
@@ -134,19 +141,25 @@ IF (MSGPACK_GEN_COVERAGE)
 
     INCLUDE (CodeCoverage)
     SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COVERAGE_FLAGS}")
-
     SETUP_TARGET_FOR_COVERAGE(coverage make coverage test)
 ENDIF ()
 
 IF (MSGPACK_BUILD_TESTS)
+    IF (${CMAKE_CXX_STANDARD} EQUAL 98)
+        MESSAGE (FATAL_ERROR "Tests requires C++11 or newer")
+    ENDIF ()
+    IF ((CMAKE_VERSION VERSION_GREATER 3.27) OR
+        (CMAKE_VERSION VERSION_EQUAL 3.27))
+        CMAKE_POLICY(SET CMP0145 OLD)
+    ENDIF ()
     IF (NOT MSGPACK_USE_BOOST)
         MESSAGE(FATAL_ERROR "Test requires -DMSGPACK_USE_BOOST=ON")
     ENDIF ()
     ENABLE_TESTING ()
+    INCLUDE (CTest)
     # MEMORYCHECK_COMMAND_OPTIONS needs to place prior to CTEST_MEMORYCHECK_COMMAND
     SET (MEMORYCHECK_COMMAND_OPTIONS "--leak-check=full --show-leak-kinds=definite,possible --error-exitcode=1")
     FIND_PROGRAM (CTEST_MEMORYCHECK_COMMAND NAMES valgrind)
-    INCLUDE (Dart)
     ADD_SUBDIRECTORY (test)
 ENDIF ()
 
@@ -157,7 +170,7 @@ IF (MSGPACK_FUZZ_REGRESSION)
 ENDIF ()
 
 IF ("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "sparc")
-    SET (CMAKE_CXX_FLAGS "-DMSGPACK_ZONE_ALIGN=8 ${CMAKE_CXX_FLAGS}")
+    TARGET_COMPILE_DEFINITIONS(msgpack-cxx INTERFACE MSGPACK_ZONE_ALIGN=8)
 ENDIF ()
 
 IF (MSGPACK_BUILD_EXAMPLES)
@@ -194,9 +207,9 @@ ENDIF ()
 include (GNUInstallDirs)
 
 # Install library.
-INSTALL (TARGETS msgpackc-cxx
-         EXPORT msgpackc-cxx-targets
-         COMPONENT msgpackc-cxx
+INSTALL (TARGETS msgpack-cxx
+         EXPORT msgpack-cxx-targets
+         COMPONENT msgpack-cxx
          # This provides include directory in exported target
          # relative to prefix in single directory we've put everything in.
          INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
@@ -205,7 +218,7 @@ INSTALL (TARGETS msgpackc-cxx
 # Install headers from source tree.
 INSTALL (DIRECTORY include/
          DESTINATION include
-         COMPONENT msgpackc-cxx
+         COMPONENT msgpack-cxx
 )
 
 INCLUDE (CMakePackageConfigHelpers)
@@ -213,18 +226,18 @@ INCLUDE (CMakePackageConfigHelpers)
 IF (NOT (CMAKE_VERSION VERSION_LESS 3.14))
     SET (extra_version_file_args ARCH_INDEPENDENT)
 ENDIF ()
-SET (cmake_config_path "${CMAKE_INSTALL_LIBDIR}/cmake/msgpackc-cxx")
+SET (cmake_config_path "${CMAKE_INSTALL_LIBDIR}/cmake/msgpack-cxx")
 
 # Configure the main package file from source tree.
 CONFIGURE_PACKAGE_CONFIG_FILE (
-    msgpack-config.cmake.in
-    "${CMAKE_CURRENT_BINARY_DIR}/msgpack-config.cmake"
+    msgpack-cxx-config.cmake.in
+    "${CMAKE_CURRENT_BINARY_DIR}/msgpack-cxx-config.cmake"
     INSTALL_DESTINATION "${cmake_config_path}"
 )
 
 # Write package version file.
 WRITE_BASIC_PACKAGE_VERSION_FILE (
-    msgpack-config-version.cmake
+    msgpack-cxx-config-version.cmake
     VERSION ${VERSION}
     COMPATIBILITY SameMajorVersion
     ${extra_version_file_args}
@@ -232,16 +245,16 @@ WRITE_BASIC_PACKAGE_VERSION_FILE (
 
 # Install the generated package version file and the main package file.
 INSTALL (FILES
-    "${CMAKE_CURRENT_BINARY_DIR}/msgpack-config.cmake"
-    "${CMAKE_CURRENT_BINARY_DIR}/msgpack-config-version.cmake"
+    "${CMAKE_CURRENT_BINARY_DIR}/msgpack-cxx-config.cmake"
+    "${CMAKE_CURRENT_BINARY_DIR}/msgpack-cxx-config-version.cmake"
     DESTINATION "${cmake_config_path}"
-    COMPONENT msgpackc-cxx
+    COMPONENT msgpack-cxx
 )
 
 # This installs package in install tree for using installed targets.
 INSTALL (
-    EXPORT msgpackc-cxx-targets
-    FILE msgpackc-cxx-targets.cmake
+    EXPORT msgpack-cxx-targets
+    FILE msgpack-cxx-targets.cmake
     DESTINATION "${cmake_config_path}"
-    COMPONENT msgpackc-cxx
+    COMPONENT msgpack-cxx
 )

Files.cmake

@@ -1,4 +1,4 @@
-SET (msgpackc_HEADERS
+SET (msgpack-cxx_HEADERS
     include/msgpack.hpp
     include/msgpack/adaptor/adaptor_base.hpp
     include/msgpack/adaptor/adaptor_base_decl.hpp
@@ -33,6 +33,7 @@ SET (msgpackc_HEADERS
     include/msgpack/adaptor/cpp17/carray_byte.hpp
     include/msgpack/adaptor/cpp17/optional.hpp
     include/msgpack/adaptor/cpp17/string_view.hpp
+    include/msgpack/adaptor/cpp17/variant.hpp
     include/msgpack/adaptor/cpp17/vector_byte.hpp
     include/msgpack/adaptor/cpp20/span.hpp
     include/msgpack/adaptor/define.hpp
@@ -542,6 +543,7 @@ SET (msgpackc_HEADERS
     include/msgpack/v1/adaptor/cpp17/carray_byte.hpp
     include/msgpack/v1/adaptor/cpp17/optional.hpp
     include/msgpack/v1/adaptor/cpp17/string_view.hpp
+    include/msgpack/v1/adaptor/cpp17/variant.hpp
     include/msgpack/v1/adaptor/cpp17/vector_byte.hpp
     include/msgpack/v1/adaptor/cpp20/span.hpp
     include/msgpack/v1/adaptor/define.hpp

QUICKSTART-CPP.md

@@ -12,7 +12,7 @@ Same as QuickStart for C Language.
 
 ## First program
 
-Include `msgpack.hpp` header and link `msgpack` library to use MessagePack on your program.
+Include `msgpack.hpp` header to use MessagePack on your program.
 
 ```cpp
 #include <msgpack.hpp>

README.md

@@ -1,8 +1,8 @@
 `msgpack` for C++
 ===================
 
-Version 4.1.1 [![Build Status](https://github.com/msgpack/msgpack-c/workflows/CI/badge.svg?branch=cpp_master)](https://github.com/msgpack/msgpack-c/actions) [![Build status](https://ci.appveyor.com/api/projects/status/8kstcgt79qj123mw/branch/cpp_master?svg=true)](https://ci.appveyor.com/project/redboltz/msgpack-c/branch/cpp_master)
-[![codecov](https://codecov.io/gh/msgpack/msgpack-c/branch/cpp_master/graph/badge.svg)](https://codecov.io/gh/msgpack/msgpack-c/branch/cpp_master)
+Version 7.0.0 [![Build Status](https://github.com/msgpack/msgpack-c/workflows/CI/badge.svg?branch=cpp_master)](https://github.com/msgpack/msgpack-c/actions) [![Build status](https://ci.appveyor.com/api/projects/status/8kstcgt79qj123mw/branch/cpp_master?svg=true)](https://ci.appveyor.com/project/redboltz/msgpack-c/branch/cpp_master)
+[![codecov](https://codecov.io/gh/msgpack/msgpack-c/branch/cpp_master/graph/badge.svg)](https://app.codecov.io/gh/msgpack/msgpack-c/tree/cpp_master)
 
 It's like JSON but smaller and faster.
 
@@ -87,7 +87,6 @@ For C++ compiler
 clang++ -DMSGPACK_NO_BOOST your_code.cpp
 ```
 
-
 Usage
 -----
 
@@ -96,9 +95,9 @@ Usage
 
   ```cmake
   # ...
-  find_package(msgpack REQUIRED)
+  find_package(msgpack-cxx REQUIRED)
   # ...
-  target_link_libraries(your_target_name <PRIVATE/PUBLIC/INTERFACE> msgpackc-cxx)
+  target_link_libraries(your_target_name <PRIVATE/PUBLIC/INTERFACE> msgpack-cxx)
   # ...
   ```
 

appveyor.yml

@@ -1,4 +1,4 @@
-version: 4.1.1.{build}
+version: 7.0.0.{build}
 
 branches:
   only:
@@ -6,16 +6,6 @@ branches:
 
 environment:
   matrix:
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
-      cpp11: -DMSGPACK_CXX11=OFF
-      msvc: '"Visual Studio 12 2013"'
-      boost_prefix: C:\Libraries\boost_1_58_0
-      boost_subdir: lib32-msvc-12.0
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      cpp11: -DMSGPACK_CXX11=OFF
-      msvc: '"Visual Studio 14 2015"'
-      boost_prefix: C:\Libraries\boost_1_69_0
-      boost_subdir: lib32-msvc-14.0
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       cpp11: -DMSGPACK_CXX11=ON
       msvc: '"Visual Studio 14 2015"'
@@ -23,10 +13,10 @@ environment:
       boost_subdir: lib32-msvc-14.0
 build_script:
   - ps: |
-      appveyor DownloadFile http://zlib.net/zlib-1.2.11.tar.gz -FileName zlib-1.2.11.tar.gz
-      7z x zlib-1.2.11.tar.gz 2> $null
-      7z x zlib-1.2.11.tar 2> $null
-      cd zlib-1.2.11
+      appveyor DownloadFile http://zlib.net/zlib-1.3.1.tar.gz -FileName zlib-1.3.1.tar.gz
+      7z x zlib-1.3.1.tar.gz 2> $null
+      7z x zlib-1.3.1.tar 2> $null
+      cd zlib-1.3.1
 
       md build
       md prefix
@@ -34,7 +24,7 @@ build_script:
 
       cmake `
           -G $env:msvc `
-          -D CMAKE_INSTALL_PREFIX="$env:APPVEYOR_BUILD_FOLDER\zlib-1.2.11\prefix" `
+          -D CMAKE_INSTALL_PREFIX="$env:APPVEYOR_BUILD_FOLDER\zlib-1.3.1\prefix" `
           ..
       if ($LastExitCode -ne 0) { exit $LastExitCode }
 
@@ -52,7 +42,7 @@ build_script:
           -D MSGPACK_BUILD_EXAMPLES=ON `
           -D MSGPACK_BUILD_TESTS=ON `
           -D CMAKE_EXE_LINKER_FLAGS=/LIBPATH:"$env:boost_prefix\$env:boost_subdir" `
-          -D CMAKE_PREFIX_PATH="$env:boost_prefix;$env:APPVEYOR_BUILD_FOLDER\zlib-1.2.11\prefix" `
+          -D CMAKE_PREFIX_PATH="$env:boost_prefix;$env:APPVEYOR_BUILD_FOLDER\zlib-1.3.1\prefix" `
           -D CMAKE_INSTALL_PREFIX="$env:APPVEYOR_BUILD_FOLDER\prefix" `
           -D CMAKE_CXX_FLAGS="/D_VARIADIC_MAX=10 /EHsc /DBOOST_ALL_DYN_LINK" `
           ..
@@ -62,5 +52,5 @@ build_script:
       if ($LastExitCode -ne 0) { exit $LastExitCode }
 
 test_script:
-- set PATH=%PATH%;%APPVEYOR_BUILD_FOLDER%\zlib-1.2.11\build\Release;%APPVEYOR_BUILD_FOLDER%\build\release;%boost_prefix%\%boost_subdir%
+- set PATH=%PATH%;%APPVEYOR_BUILD_FOLDER%\zlib-1.3.1\build\Release;%APPVEYOR_BUILD_FOLDER%\build\release;%boost_prefix%\%boost_subdir%
 - ctest -VV -C Release

ci/build_cmake.sh

@@ -21,6 +21,7 @@ cmake \
     -D MSGPACK_CHAR_SIGN=${CHAR_SIGN} \
     -D MSGPACK_DEFAULT_API_VERSION=${API_VERSION} \
     -D MSGPACK_USE_X3_PARSE=${X3_PARSE} \
+    -D MSGPACK_USE_STD_VARIANT_ADAPTOR=${STD_VARIANT_ADAPTOR} \
     -D CMAKE_CXX_FLAGS="${CXXFLAGS} ${ARCH_FLAG}" \
     -D CMAKE_INSTALL_PREFIX=$prefix_dir \
     -B $build_dir \

cmake/CodeCoverage.cmake

@@ -48,7 +48,7 @@ FUNCTION(SETUP_TARGET_FOR_COVERAGE _targetname _testrunner _outputname)
 
     # Show info where to find the report
     ADD_CUSTOM_COMMAND(TARGET ${_targetname} POST_BUILD
-        COMMAND ;
+        COMMAND ${CMAKE_COMMAND} -E echo ""
         COMMENT "Open ./${_outputname}/index.html in your browser to view the coverage report."
     )
 

codecov.yml

@@ -31,6 +31,6 @@ ignore:
   - "erb"
   - "ci"
   - "cmake"
-  - "examle"
+  - "example"
   - "external"
   - "usr"

erb/v1/cpp03_zone.hpp.erb

@@ -138,7 +138,7 @@ class zone {
     finalizer_array m_finalizer_array;
 
 public:
-    zone(size_t chunk_size = MSGPACK_ZONE_CHUNK_SIZE) /* throw() */;
+    zone(size_t chunk_size = MSGPACK_ZONE_CHUNK_SIZE);
 
 public:
     void* allocate_align(size_t size, size_t align = MSGPACK_ZONE_ALIGN);
@@ -194,7 +194,7 @@ private:
     zone& operator=(const zone&);
 };
 
-inline zone::zone(size_t chunk_size) /* throw() */ :m_chunk_size(chunk_size), m_chunk_list(m_chunk_size)
+inline zone::zone(size_t chunk_size):m_chunk_size(chunk_size), m_chunk_list(m_chunk_size)
 {
 }
 

example/boost/CMakeLists.txt

@@ -1,4 +1,4 @@
-FIND_PACKAGE (Boost REQUIRED COMPONENTS system)
+FIND_PACKAGE (Boost REQUIRED)
 FIND_PACKAGE (Threads REQUIRED)
 FIND_PACKAGE (ZLIB REQUIRED)
 
@@ -21,8 +21,7 @@ FOREACH (source_file ${exec_PROGRAMS})
         ${source_file}
     )
     TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE
-        msgpackc-cxx
-        Boost::system
+        msgpack-cxx
         Threads::Threads
     )
     IF (ZLIB_FOUND)

example/cpp03/CMakeLists.txt

@@ -43,7 +43,7 @@ FOREACH (source_file ${exec_PROGRAMS})
         ${source_file}
     )
     TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE
-        msgpackc-cxx
+        msgpack-cxx
     )
     IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
         SET_PROPERTY (TARGET ${source_file_we} APPEND_STRING PROPERTY COMPILE_FLAGS " -Wall -Wextra")
@@ -64,7 +64,7 @@ FOREACH (source_file ${with_pthread_PROGRAMS})
         ${source_file}
     )
     TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE
-        msgpackc-cxx
+        msgpack-cxx
         Threads::Threads
     )
     IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
@@ -86,7 +86,7 @@ FOREACH (source_file ${with_boost_lib_PROGRAMS})
         ${source_file}
     )
     TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE
-        msgpackc-cxx
+        msgpack-cxx
         Boost::timer
     )
     IF (NOT MSVC AND NOT APPLE)

example/cpp11/CMakeLists.txt

@@ -17,7 +17,7 @@ IF (MSGPACK_CXX11 OR MSGPACK_CXX14 OR MSGPACK_CXX17)
             ${source_file}
         )
         TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE
-            msgpackc-cxx
+            msgpack-cxx
         )
         IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
             SET_PROPERTY (TARGET ${source_file_we} APPEND_STRING PROPERTY COMPILE_FLAGS " -Wall -Wextra")

example/x3/CMakeLists.txt

@@ -1,5 +1,5 @@
 IF (MSGPACK_USE_X3_PARSE AND MSGPACK_DEFAULT_API_VERSION VERSION_GREATER 1)
-    FIND_PACKAGE (Boost REQUIRED COMPONENTS context system)
+    FIND_PACKAGE (Boost REQUIRED COMPONENTS context)
     FIND_PACKAGE (Threads REQUIRED)
 
     LIST (APPEND exec_PROGRAMS
@@ -15,7 +15,7 @@ IF (MSGPACK_USE_X3_PARSE AND MSGPACK_DEFAULT_API_VERSION VERSION_GREATER 1)
             ${source_file_we}
             ${source_file}
         )
-        TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE msgpackc-cxx)
+        TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE msgpack-cxx)
 
         IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
             SET_PROPERTY (TARGET ${source_file_we} APPEND_STRING PROPERTY COMPILE_FLAGS " -Wall -Wextra")
@@ -40,9 +40,8 @@ IF (MSGPACK_USE_X3_PARSE AND MSGPACK_DEFAULT_API_VERSION VERSION_GREATER 1)
             ${source_file}
         )
         TARGET_LINK_LIBRARIES (${source_file_we} PRIVATE
-            msgpackc-cxx
+            msgpack-cxx
             Boost::context
-            Boost::system
             Threads::Threads
         )
         IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")

fuzz/CMakeLists.txt

@@ -1,5 +1,5 @@
 FIND_PACKAGE (Threads REQUIRED)
-FIND_PACKAGE (Boost REQUIRED COMPONENTS system filesystem unit_test_framework)
+FIND_PACKAGE (Boost REQUIRED COMPONENTS filesystem unit_test_framework)
 
 LIST (APPEND check_PROGRAMS
     regression_runner.cpp
@@ -16,10 +16,9 @@ FOREACH (source_file ${check_PROGRAMS})
         $<IF:$<BOOL:${MSGPACK_USE_STATIC_BOOST}>,,BOOST_TEST_DYN_LINK>)
 
     TARGET_LINK_LIBRARIES (${source_file_we}
-        msgpackc-cxx
+        msgpack-cxx
         Threads::Threads
         Boost::filesystem
-        Boost::system
         Boost::unit_test_framework
     )
 

include/msgpack/adaptor/cpp17/variant.hpp

@@ -0,0 +1,16 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2023 Uy Ha
+//
+//    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)
+//
+
+#ifndef MSGPACK_TYPE_CPP17_VARIANT_HPP
+#define MSGPACK_TYPE_CPP17_VARIANT_HPP
+
+#include "msgpack/v1/adaptor/cpp17/variant.hpp"
+
+#endif // MSGPACK_TYPE_CPP17_VARIANT_HPP

include/msgpack/adaptor/tr1/unordered_map.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #if defined(_LIBCPP_VERSION) || (_MSC_VER >= 1700)

include/msgpack/adaptor/tr1/unordered_set.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #if defined(_LIBCPP_VERSION) || (_MSC_VER >= 1700)

include/msgpack/predef/os/linux.h

@@ -27,7 +27,7 @@ http://www.boost.org/LICENSE_1_0.txt)
 #define MSGPACK_OS_LINUX MSGPACK_VERSION_NUMBER_NOT_AVAILABLE
 
 #if !defined(MSGPACK_PREDEF_DETAIL_OS_DETECTED) && ( \
-    defined(linux) || defined(__linux) \
+    defined(linux) || defined(__linux) || defined(__linux__) \
     )
 #   undef MSGPACK_OS_LINUX
 #   define MSGPACK_OS_LINUX MSGPACK_VERSION_NUMBER_AVAILABLE

include/msgpack/preprocessor/config/config.hpp

@@ -24,16 +24,22 @@
 # define MSGPACK_PP_CONFIG_EDG() 0x0020
 # define MSGPACK_PP_CONFIG_DMC() 0x0040
 #
+# if !defined(__clang__) && (!defined(_MSVC_TRADITIONAL) || _MSVC_TRADITIONAL)
+#    define MSGPACK_TRADITIONAL_MSVC 1
+# else
+#    define MSGPACK_TRADITIONAL_MSVC 0
+# endif
+#
 # ifndef MSGPACK_PP_CONFIG_FLAGS
 #    if defined(__GCCXML__) || defined(__WAVE__) || defined(__MWERKS__) && __MWERKS__ >= 0x3200
 #        define MSGPACK_PP_CONFIG_FLAGS() (MSGPACK_PP_CONFIG_STRICT())
 #    elif defined(__EDG__) || defined(__EDG_VERSION__)
-#        if defined(_MSC_VER) && !defined(__clang__) && (defined(__INTELLISENSE__) || __EDG_VERSION__ >= 308)
+#        if defined(_MSC_VER) && MSGPACK_TRADITIONAL_MSVC && (defined(__INTELLISENSE__) || __EDG_VERSION__ >= 308)
 #            define MSGPACK_PP_CONFIG_FLAGS() (MSGPACK_PP_CONFIG_MSVC())
 #        else
 #            define MSGPACK_PP_CONFIG_FLAGS() (MSGPACK_PP_CONFIG_EDG() | MSGPACK_PP_CONFIG_STRICT())
 #        endif
-#    elif defined(_MSC_VER) && defined(__clang__)
+#    elif defined(_MSC_VER) && !MSGPACK_TRADITIONAL_MSVC
 #        define MSGPACK_PP_CONFIG_FLAGS() (MSGPACK_PP_CONFIG_STRICT())
 #    elif defined(__MWERKS__)
 #        define MSGPACK_PP_CONFIG_FLAGS() (MSGPACK_PP_CONFIG_MWCC())
@@ -75,7 +81,7 @@
 #        define MSGPACK_PP_VARIADICS 0
 #    elif defined(__CUDACC__)
 #        define MSGPACK_PP_VARIADICS 1
-#    elif defined(_MSC_VER) && defined(__clang__)
+#    elif defined(_MSC_VER) && !MSGPACK_TRADITIONAL_MSVC
 #        define MSGPACK_PP_VARIADICS 1
 #    /* VC++ (C/C++) and Intel C++ Compiler >= 17.0 with MSVC */
 #    elif defined _MSC_VER && _MSC_VER >= 1400 && (!defined __EDG__ || defined(__INTELLISENSE__) || defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1700)
@@ -94,7 +100,7 @@
 # elif !MSGPACK_PP_VARIADICS + 1 < 2
 #    undef MSGPACK_PP_VARIADICS
 #    define MSGPACK_PP_VARIADICS 1
-#    if defined _MSC_VER && _MSC_VER >= 1400 && !defined(__clang__) && (defined(__INTELLISENSE__) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1700) || !(defined __EDG__ || defined __GCCXML__ || defined __CUDACC__ || defined __PATHSCALE__ || defined __DMC__ || defined __CODEGEARC__ || defined __BORLANDC__ || defined __MWERKS__ || defined __SUNPRO_CC || defined __HP_aCC || defined __MRC__ || defined __SC__ || defined __IBMCPP__ || defined __PGI))
+#    if defined _MSC_VER && _MSC_VER >= 1400 && MSGPACK_TRADITIONAL_MSVC && (defined(__INTELLISENSE__) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1700) || !(defined __EDG__ || defined __GCCXML__ || defined __CUDACC__ || defined __PATHSCALE__ || defined __DMC__ || defined __CODEGEARC__ || defined __BORLANDC__ || defined __MWERKS__ || defined __SUNPRO_CC || defined __HP_aCC || defined __MRC__ || defined __SC__ || defined __IBMCPP__ || defined __PGI))
 #        undef MSGPACK_PP_VARIADICS_MSVC
 #        define MSGPACK_PP_VARIADICS_MSVC 1
 #    endif

include/msgpack/sysdep.hpp

@@ -88,7 +88,7 @@
 #elif defined(unix) || defined(__unix) || defined(__APPLE__) || defined(__OpenBSD__)
 
 #include <arpa/inet.h>  /* __BYTE_ORDER */
-#   if defined(linux)
+#   if defined(linux) || defined(__linux__)
 #       include <byteswap.h>
 #   endif
 

include/msgpack/type.hpp

@@ -37,9 +37,7 @@
 #include "adaptor/cpp11/array_char.hpp"
 #include "adaptor/cpp11/array_unsigned_char.hpp"
 
-#if !defined(MSGPACK_NO_BOOST)
 #include "adaptor/cpp11/chrono.hpp"
-#endif // !defined(MSGPACK_NO_BOOST)
 
 #include "adaptor/cpp11/forward_list.hpp"
 #include "adaptor/cpp11/reference_wrapper.hpp"
@@ -63,6 +61,10 @@
 #include "adaptor/cpp17/carray_byte.hpp"
 #include "adaptor/cpp17/vector_byte.hpp"
 
+#if MSGPACK_HAS_INCLUDE(<variant>)
+#include "adaptor/cpp17/variant.hpp"
+#endif // MSGPACK_HAS_INCLUDE(<variant>)
+
 #if MSGPACK_HAS_INCLUDE(<span>)
 #include "adaptor/cpp20/span.hpp"
 #endif // MSGPACK_HAS_INCLUDE(<span>)
@@ -71,7 +73,11 @@
 
 #if !defined(MSGPACK_NO_BOOST)
 #include "adaptor/boost/fusion.hpp"
+
+#if !defined(MSGPACK_USE_CPP03)
 #include "adaptor/boost/msgpack_variant.hpp"
+#endif // !defined(MSGPACK_USE_CPP03)
+
 #include "adaptor/boost/optional.hpp"
 #include "adaptor/boost/string_ref.hpp"
 #include "adaptor/boost/string_view.hpp"

include/msgpack/v1/adaptor/array_ref_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 

include/msgpack/v1/adaptor/bool.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 

include/msgpack/v1/adaptor/boost/fusion.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 #include "msgpack/meta.hpp"
 

include/msgpack/v1/adaptor/boost/msgpack_variant.hpp

@@ -122,6 +122,12 @@ struct basic_variant :
         int_init(v);
     }
     basic_variant(unsigned long long v):base(uint64_t(v)) {}
+    basic_variant(float v) {
+        double_init(v);
+    }
+    basic_variant(double v) {
+        double_init(v);
+    }
 
     bool is_nil() const {
         return boost::get<msgpack::type::nil_t>(this) != MSGPACK_NULLPTR;
@@ -177,71 +183,50 @@ struct basic_variant :
     int64_t as_int64_t() const {
         return boost::get<int64_t>(*this);
     }
-    int64_t& as_int64_t() {
-        return boost::get<int64_t>(*this);
-    }
     uint64_t as_uint64_t() const {
         return boost::get<uint64_t>(*this);
     }
-    uint64_t& as_uint64_t() {
-        return boost::get<uint64_t>(*this);
-    }
     double as_double() const {
-        return boost::get<double>(*this);
-    }
-    double& as_double() {
-        return boost::get<double>(*this);
+        if (is_double()) {
+            return boost::get<double>(*this);
+        }
+        if (is_int64_t()) {
+            return static_cast<double>(boost::get<int64_t>(*this));
+        }
+        if (is_uint64_t()) {
+            return static_cast<double>(boost::get<uint64_t>(*this));
+        }
+        throw msgpack::type_error();
     }
     std::string const& as_string() const {
         return boost::get<std::string>(*this);
     }
-    std::string& as_string() {
-        return boost::get<std::string>(*this);
-    }
 #if (BOOST_VERSION / 100000) >= 1 && ((BOOST_VERSION / 100) % 1000) >= 53
     boost::string_ref const& as_boost_string_ref() const {
         return boost::get<boost::string_ref>(*this);
     }
-    boost::string_ref& as_boost_string_ref() {
-        return boost::get<boost::string_ref>(*this);
-    }
 #endif // (BOOST_VERSION / 100000) >= 1 && ((BOOST_VERSION / 100) % 1000) >= 53
     std::vector<char> const& as_vector_char() const {
         return boost::get<std::vector<char> >(*this);
     }
-    std::vector<char>& as_vector_char() {
-        return boost::get<std::vector<char> >(*this);
-    }
     raw_ref const& as_raw_ref() const {
         return boost::get<raw_ref>(*this);
     }
     ext const& as_ext() const {
         return boost::get<ext>(*this);
     }
-    ext& as_ext() {
-        return boost::get<ext>(*this);
-    }
     ext_ref const& as_ext_ref() const {
         return boost::get<ext_ref>(*this);
     }
     std::vector<basic_variant<STR, BIN, EXT> > const& as_vector() const {
         return boost::get<std::vector<basic_variant<STR, BIN, EXT> > >(*this);
     }
-    std::vector<basic_variant<STR, BIN, EXT> >& as_vector() {
-        return boost::get<std::vector<basic_variant<STR, BIN, EXT> > >(*this);
-    }
     std::map<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> > const& as_map() const {
         return boost::get<std::map<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> > >(*this);
     }
-    std::map<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> >& as_map() {
-        return boost::get<std::map<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> > >(*this);
-    }
     std::multimap<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> > const& as_multimap() const {
         return boost::get<std::multimap<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> > >(*this);
     }
-    std::multimap<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> >& as_multimap() {
-        return boost::get<std::multimap<basic_variant<STR, BIN, EXT>, basic_variant<STR, BIN, EXT> > >(*this);
-    }
 private:
     template <typename T>
     void int_init(T v) {
@@ -252,6 +237,19 @@ private:
             static_cast<base&>(*this) = uint64_t(v);
         }
     }
+    void double_init(double v) {
+        if (v == v) { // check for nan
+            if (v >= 0 && v <= double(std::numeric_limits<uint64_t>::max()) && v == double(uint64_t(v))) {
+                static_cast<base&>(*this) = uint64_t(v);
+                return;
+            }
+            else if (v < 0 && v >= double(std::numeric_limits<int64_t>::min()) && v == double(int64_t(v))) {
+                static_cast<base&>(*this) = int64_t(v);
+                return;
+            }
+        }
+        static_cast<base&>(*this) = v;
+    }
 };
 
 template <typename STR, typename BIN, typename EXT>

include/msgpack/v1/adaptor/boost/msgpack_variant_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 #include "msgpack/adaptor/boost/string_ref.hpp"
 #include "msgpack/adaptor/ext.hpp"

include/msgpack/v1/adaptor/boost/optional.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #if defined(__GNUC__)

include/msgpack/v1/adaptor/boost/string_ref.hpp

@@ -15,6 +15,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <boost/utility/string_ref.hpp>

include/msgpack/v1/adaptor/boost/string_view.hpp

@@ -15,6 +15,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <boost/utility/string_view.hpp>

include/msgpack/v1/adaptor/cpp11/array.hpp

@@ -13,6 +13,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 #include "msgpack/meta.hpp"
 

include/msgpack/v1/adaptor/cpp11/array_char.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <array>

include/msgpack/v1/adaptor/cpp11/array_unsigned_char.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <array>

include/msgpack/v1/adaptor/cpp11/chrono.hpp

@@ -13,12 +13,12 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
+#include <limits>
 #include <chrono>
 
-#include <boost/numeric/conversion/cast.hpp>
-
 namespace msgpack {
 
 /// @cond
@@ -27,6 +27,113 @@ MSGPACK_API_VERSION_NAMESPACE(v1) {
 
 namespace adaptor {
 
+namespace detail {
+template <
+    typename Target,
+    typename Source,
+    bool target_is_signed = std::is_signed<Target>::value,
+    bool source_is_signed = std::is_signed<Source>::value,
+    typename = typename std::enable_if<
+                   std::is_integral<Target>::value &&
+                   std::is_integral<Source>::value
+               >::type
+>
+struct would_underflow {
+    // The default case includes the cases that Source being unsigned, and since Source
+    // is unsigned, no underflow can happen
+    would_underflow(Source) : value{false} {}
+    bool value;
+};
+
+template <typename Target, typename Source>
+struct would_underflow<Target, Source, false, true> {
+    // When Source is signed and Target is unsigned, we only need to compare with 0 to
+    // detect underflow, this works correctly and also avoids warnings from the compiler
+    would_underflow(Source source) : value{source < 0} {}
+    bool value;
+};
+template <typename Target, typename Source>
+struct would_underflow<Target, Source, true, true> {
+    // When Source and Target are signed, the promotion rules apply sensibly so we do
+    // not need to do anything
+    would_underflow(Source source)
+        : value{source < std::numeric_limits<Target>::min()} {}
+    bool value;
+};
+
+template <
+    typename Target,
+    typename Source,
+    bool target_is_signed = std::is_signed<Target>::value,
+    bool source_is_signed = std::is_signed<Source>::value,
+    typename = typename std::enable_if<
+                   std::is_integral<Target>::value &&
+                   std::is_integral<Source>::value
+               >::type
+>
+struct would_overflow {
+    // The default case is Source and Target having the same signedness, the promotion
+    // rule also apply sensibly here so nothing special needs to be done
+    would_overflow(Source source)
+        : value{source > std::numeric_limits<Target>::max()} {}
+    bool value;
+};
+template <typename Target, typename Source>
+struct would_overflow <Target, Source, false, true> {
+    // When Target is unsigned and Source is signed, we cannot rely on the promotion
+    // rule.
+    would_overflow(Source source)
+        : value{
+              sizeof(Target) >= sizeof(Source)
+              // Given Source is signed, Target being unsigned and having at least the
+              // same size makes impossible to overflow
+              ? false
+              // Source being larger than Target makes it safe to cast the maximum value
+              // of Target to Source
+              : source > static_cast<Source>(std::numeric_limits<Target>::max())
+          } {}
+    bool value;
+};
+template <typename Target, typename Source>
+struct would_overflow <Target, Source, true, false> {
+    // When Target is signed and Source is unsigned, we cannot rely on the promotion
+    // rule.
+    would_overflow(Source source)
+        : value{
+              sizeof(Target) > sizeof(Source)
+              // Target being larger than Source makes it impossible to overflow
+              ? false
+              // Source being unsigned and having at least the size of Target makes it
+              // safe to cast the maximum value of Target to Source
+              : source > static_cast<Source>(std::numeric_limits<Target>::max())
+          } {}
+    bool value;
+};
+
+template <
+    typename Target,
+    typename Source,
+    typename = typename std::enable_if<
+                   std::is_integral<Target>::value &&
+                   std::is_integral<Source>::value
+               >::type
+>
+Target integral_cast(Source source) {
+    if (would_underflow<Target, Source>(source).value) {
+        throw std::underflow_error{
+            "casting from Source to Target causes an underflow error"
+        };
+    }
+    if(would_overflow<Target, Source>(source).value) {
+        throw std::overflow_error{
+            "casting from Source to Target causes an overflow error"
+        };
+    }
+
+    return static_cast<Target>(source);
+}
+} // namespace detail
+
 template <typename Clock, typename Duration>
 struct as<std::chrono::time_point<Clock, Duration>> {
     typename std::chrono::time_point<Clock, Duration> operator()(msgpack::object const& o) const {
@@ -42,7 +149,7 @@ struct as<std::chrono::time_point<Clock, Duration>> {
         case 8: {
             uint64_t value;
             _msgpack_load64(uint64_t, o.via.ext.data(), &value);
-            uint32_t nanosec = boost::numeric_cast<uint32_t>(value >> 34);
+            uint32_t nanosec = detail::integral_cast<uint32_t>(value >> 34);
             uint64_t sec = value & 0x00000003ffffffffLL;
             tp += std::chrono::duration_cast<Duration>(
                 std::chrono::nanoseconds(nanosec));
@@ -66,7 +173,7 @@ struct as<std::chrono::time_point<Clock, Duration>> {
                 else {
                     ++sec;
                     tp += std::chrono::seconds(sec);
-                    int64_t ns = boost::numeric_cast<int64_t>(nanosec) - 1000000000L;
+                    int64_t ns = detail::integral_cast<int64_t>(nanosec) - 1000000000L;
                     tp += std::chrono::duration_cast<Duration>(
                         std::chrono::nanoseconds(ns));
                 }
@@ -95,7 +202,7 @@ struct convert<std::chrono::time_point<Clock, Duration>> {
         case 8: {
             uint64_t value;
             _msgpack_load64(uint64_t, o.via.ext.data(), &value);
-            uint32_t nanosec = boost::numeric_cast<uint32_t>(value >> 34);
+            uint32_t nanosec = detail::integral_cast<uint32_t>(value >> 34);
             uint64_t sec = value & 0x00000003ffffffffLL;
             tp += std::chrono::duration_cast<Duration>(
                 std::chrono::nanoseconds(nanosec));
@@ -120,7 +227,7 @@ struct convert<std::chrono::time_point<Clock, Duration>> {
                 else {
                     ++sec;
                     tp += std::chrono::seconds(sec);
-                    int64_t ns = boost::numeric_cast<int64_t>(nanosec) - 1000000000L;
+                    int64_t ns = detail::integral_cast<int64_t>(nanosec) - 1000000000L;
                     tp += std::chrono::duration_cast<Duration>(
                         std::chrono::nanoseconds(ns));
                 }
@@ -139,7 +246,7 @@ template <typename Clock, typename Duration>
 struct pack<std::chrono::time_point<Clock, Duration>> {
     template <typename Stream>
     msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, std::chrono::time_point<Clock, Duration> const& v) const {
-        int64_t count = boost::numeric_cast<int64_t>(v.time_since_epoch().count());
+        int64_t count = detail::integral_cast<int64_t>(v.time_since_epoch().count());
         int64_t nano_num =
             Duration::period::ratio::num *
             (1000000000L / Duration::period::ratio::den);
@@ -155,11 +262,11 @@ struct pack<std::chrono::time_point<Clock, Duration>> {
             / Duration::period::ratio::den;
 
         if ((sec >> 34) == 0) {
-            uint64_t data64 = (boost::numeric_cast<uint64_t>(nanosec) << 34) | boost::numeric_cast<uint64_t>(sec);
+            uint64_t data64 = (detail::integral_cast<uint64_t>(nanosec) << 34) | detail::integral_cast<uint64_t>(sec);
             if ((data64 & 0xffffffff00000000L) == 0) {
                 // timestamp 32
                 o.pack_ext(4, -1);
-                uint32_t data32 = boost::numeric_cast<uint32_t>(data64);
+                uint32_t data32 = detail::integral_cast<uint32_t>(data64);
                 char buf[4];
                 _msgpack_store32(buf, data32);
                 o.pack_ext_body(buf, 4);
@@ -178,7 +285,7 @@ struct pack<std::chrono::time_point<Clock, Duration>> {
             char buf[12];
 
 
-            _msgpack_store32(&buf[0], boost::numeric_cast<uint32_t>(nanosec));
+            _msgpack_store32(&buf[0], detail::integral_cast<uint32_t>(nanosec));
             _msgpack_store64(&buf[4], sec);
             o.pack_ext_body(buf, 12);
         }
@@ -189,7 +296,7 @@ struct pack<std::chrono::time_point<Clock, Duration>> {
 template <typename Clock, typename Duration>
 struct object_with_zone<std::chrono::time_point<Clock, Duration>> {
     void operator()(msgpack::object::with_zone& o, const std::chrono::time_point<Clock, Duration>& v) const {
-        int64_t count = boost::numeric_cast<int64_t>(v.time_since_epoch().count());
+        int64_t count = detail::integral_cast<int64_t>(v.time_since_epoch().count());
 
         int64_t nano_num =
             Duration::period::ratio::num *
@@ -205,14 +312,14 @@ struct object_with_zone<std::chrono::time_point<Clock, Duration>> {
             * Duration::period::ratio::num
             / Duration::period::ratio::den;
         if ((sec >> 34) == 0) {
-            uint64_t data64 = (boost::numeric_cast<uint64_t>(nanosec) << 34) | boost::numeric_cast<uint64_t>(sec);
+            uint64_t data64 = (detail::integral_cast<uint64_t>(nanosec) << 34) | detail::integral_cast<uint64_t>(sec);
             if ((data64 & 0xffffffff00000000L) == 0) {
                 // timestamp 32
                 o.type = msgpack::type::EXT;
                 o.via.ext.size = 4;
                 char* p = static_cast<char*>(o.zone.allocate_no_align(o.via.ext.size + 1));
                 p[0] = static_cast<char>(-1);
-                uint32_t data32 = boost::numeric_cast<uint32_t>(data64);
+                uint32_t data32 = detail::integral_cast<uint32_t>(data64);
                 _msgpack_store32(&p[1], data32);
                 o.via.ext.ptr = p;
             }
@@ -232,7 +339,7 @@ struct object_with_zone<std::chrono::time_point<Clock, Duration>> {
             o.via.ext.size = 12;
             char* p = static_cast<char*>(o.zone.allocate_no_align(o.via.ext.size + 1));
             p[0] = static_cast<char>(-1);
-            _msgpack_store32(&p[1], boost::numeric_cast<uint32_t>(nanosec));
+            _msgpack_store32(&p[1], detail::integral_cast<uint32_t>(nanosec));
             _msgpack_store64(&p[1 + 4], sec);
             o.via.ext.ptr = p;
         }

include/msgpack/v1/adaptor/cpp11/forward_list.hpp

@@ -13,6 +13,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <forward_list>

include/msgpack/v1/adaptor/cpp11/reference_wrapper.hpp

@@ -13,6 +13,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <memory>

include/msgpack/v1/adaptor/cpp11/shared_ptr.hpp

@@ -13,6 +13,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <memory>

include/msgpack/v1/adaptor/cpp11/tuple.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 #include "msgpack/meta.hpp"
 

include/msgpack/v1/adaptor/cpp11/unique_ptr.hpp

@@ -13,6 +13,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <memory>

include/msgpack/v1/adaptor/cpp11/unordered_map.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <unordered_map>

include/msgpack/v1/adaptor/cpp11/unordered_set.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <unordered_set>

include/msgpack/v1/adaptor/cpp17/array_byte.hpp

@@ -16,6 +16,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <array>

include/msgpack/v1/adaptor/cpp17/byte.hpp

@@ -16,6 +16,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
 #include "msgpack/adaptor/int_decl.hpp"
 #include "msgpack/object.hpp"

include/msgpack/v1/adaptor/cpp17/carray_byte.hpp

@@ -16,6 +16,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <cstring>

include/msgpack/v1/adaptor/cpp17/optional.hpp

@@ -16,6 +16,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <optional>

include/msgpack/v1/adaptor/cpp17/string_view.hpp

@@ -16,6 +16,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <string_view>

include/msgpack/v1/adaptor/cpp17/variant.hpp

@@ -0,0 +1,151 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2023 Uy Ha
+//
+//    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)
+//
+
+#ifndef MSGPACK_V1_TYPE_VARIANT_HPP
+#define MSGPACK_V1_TYPE_VARIANT_HPP
+
+#if defined(MSGPACK_USE_STD_VARIANT_ADAPTOR)
+
+#include "msgpack/cpp_version.hpp"
+
+#if MSGPACK_CPP_VERSION >= 201703
+
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
+#include "msgpack/versioning.hpp"
+
+#include <variant>
+
+namespace msgpack {
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+namespace adaptor {
+namespace detail {
+template <
+    typename Variant,
+    typename T,
+    typename... Ts,
+    std::size_t current_index,
+    std::size_t... indices
+>
+Variant construct_variant(
+    std::size_t index,
+    msgpack::object& object,
+    std::index_sequence<current_index, indices...>
+) {
+    if constexpr(sizeof...(Ts) == 0) {
+        return Variant{std::in_place_index<current_index>, object.as<T>()};
+    }
+    else {
+        if (index == current_index) {
+            return Variant{std::in_place_index<current_index>, object.as<T>()};
+        }
+        return construct_variant<Variant, Ts...>(
+            index,
+            object,
+            std::index_sequence<indices...>()
+        );
+    }
+}
+
+struct object_variant_overload {
+    object_variant_overload(msgpack::object& obj, msgpack::zone& zone)
+        : obj{obj}
+        , zone{zone} {}
+
+    template<typename T>
+    void operator()(T const& value) {
+        obj = msgpack::object(value, zone);
+    }
+
+    msgpack::object& obj;
+    msgpack::zone& zone;
+};
+} // namespace detail
+
+template <typename... Ts>
+struct as<std::variant<Ts...>, typename std::enable_if<(msgpack::has_as<Ts>::value && ...)>::type> {
+    std::variant<Ts...> operator()(msgpack::object const& o) const {
+        if (  o.type != msgpack::type::ARRAY
+           || o.via.array.size != 2
+           || o.via.array.ptr[0].type != msgpack::type::POSITIVE_INTEGER
+           || o.via.array.ptr[0].via.u64 >= sizeof...(Ts)) {
+            throw msgpack::type_error{};
+        }
+
+        return detail::construct_variant<std::variant<Ts...>, Ts...>(
+            o.via.array.ptr[0].as<std::size_t>(),
+            o.via.array.ptr[1],
+            std::make_index_sequence<sizeof...(Ts)>()
+        );
+    }
+};
+
+template<typename... Ts>
+struct convert<std::variant<Ts...>> {
+    msgpack::object const& operator()(msgpack::object const& o, std::variant<Ts...>& v) const {
+        if (  o.type != msgpack::type::ARRAY
+           || o.via.array.size != 2
+           || o.via.array.ptr[0].type != msgpack::type::POSITIVE_INTEGER
+           || o.via.array.ptr[0].via.u64 >= sizeof...(Ts)) {
+            throw msgpack::type_error{};
+        }
+
+        v =  detail::construct_variant<std::variant<Ts...>, Ts...>(
+            o.via.array.ptr[0].as<std::size_t>(),
+            o.via.array.ptr[1],
+            std::make_index_sequence<sizeof...(Ts)>()
+        );
+        return o;
+    }
+};
+
+template <typename... Ts>
+struct pack<std::variant<Ts...>>{
+    template<typename Stream>
+    msgpack::packer<Stream>& operator()(
+        msgpack::packer<Stream>& o,
+        std::variant<Ts...> const& v
+    ) const {
+        o.pack_array(2);
+        o.pack_uint64(v.index());
+        std::visit([&o](auto const& value){o.pack(value);}, v);
+        return o;
+    }
+};
+
+
+template<typename... Ts>
+struct object_with_zone<std::variant<Ts...>> {
+    void operator()(
+        msgpack::object::with_zone& o,
+        std::variant<Ts...> const& v
+    ) const {
+        msgpack::object *p =
+            static_cast<msgpack::object *>(
+                o.zone.allocate_align(
+                    sizeof(msgpack::object) * 2,
+                    MSGPACK_ZONE_ALIGNOF(msgpack::object)
+                )
+            );
+
+        o.type = msgpack::type::ARRAY;
+        o.via.array.size = 2;
+        o.via.array.ptr = p;
+        o.via.array.ptr[0]= msgpack::object(v.index(), o.zone);
+        std::visit(detail::object_variant_overload(o.via.array.ptr[1], o.zone), v);
+    }
+};
+} // namespace adaptor
+}
+} // namespace msgpack
+
+#endif // MSGPACK_CPP_VERSION >= 201703
+#endif // defined(MSGPACK_USE_STD_VARIANT_ADAPTOR)
+#endif // MSGPACK_V1_TYPE_VARIANT_HPP

include/msgpack/v1/adaptor/cpp17/vector_byte.hpp

@@ -16,6 +16,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <vector>

include/msgpack/v1/adaptor/cpp20/span.hpp

@@ -18,6 +18,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 #include "msgpack/meta.hpp"
 

include/msgpack/v1/adaptor/deque.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <deque>

include/msgpack/v1/adaptor/detail/cpp11_define_array_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 /// @cond

include/msgpack/v1/adaptor/detail/cpp11_define_map_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 /// @cond

include/msgpack/v1/adaptor/ext_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include <cstring>
 #include <string>
 

include/msgpack/v1/adaptor/fixint_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/int.hpp"
 
 namespace msgpack {

include/msgpack/v1/adaptor/int_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include <limits>
 
 namespace msgpack {

include/msgpack/v1/adaptor/list.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <list>

include/msgpack/v1/adaptor/nil_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 

include/msgpack/v1/adaptor/pair.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/meta.hpp"
 
 #include <utility>

include/msgpack/v1/adaptor/raw_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include <cstring>
 #include <string>
 

include/msgpack/v1/adaptor/size_equal_only_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/msgpack_tuple.hpp"
 
 namespace msgpack {

include/msgpack/v1/adaptor/string.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <string>

include/msgpack/v1/adaptor/tr1/unordered_map.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #if defined(_LIBCPP_VERSION) || (_MSC_VER >= 1700)

include/msgpack/v1/adaptor/tr1/unordered_set.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #if defined(_LIBCPP_VERSION) || (_MSC_VER >= 1700)

include/msgpack/v1/adaptor/v4raw_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 

include/msgpack/v1/adaptor/vector.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <vector>

include/msgpack/v1/adaptor/vector_char.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <vector>

include/msgpack/v1/adaptor/vector_unsigned_char.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <vector>

include/msgpack/v1/adaptor/wstring.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 #include "msgpack/adaptor/check_container_size.hpp"
 
 #include <vector>

include/msgpack/v1/cpp_config_decl.hpp

@@ -87,6 +87,7 @@ struct is_pointer;
 
 #include <memory>
 #include <tuple>
+#include <type_traits>
 
 namespace msgpack {
 /// @cond

include/msgpack/v1/detail/cpp03_zone.hpp

@@ -138,7 +138,7 @@ class zone {
     finalizer_array m_finalizer_array;
 
 public:
-    zone(size_t chunk_size = MSGPACK_ZONE_CHUNK_SIZE) /* throw() */;
+    zone(size_t chunk_size = MSGPACK_ZONE_CHUNK_SIZE);
 
 public:
     void* allocate_align(size_t size, size_t align = MSGPACK_ZONE_ALIGN);
@@ -239,7 +239,7 @@ private:
     zone& operator=(const zone&);
 };
 
-inline zone::zone(size_t chunk_size) /* throw() */ :m_chunk_size(chunk_size), m_chunk_list(m_chunk_size)
+inline zone::zone(size_t chunk_size):m_chunk_size(chunk_size), m_chunk_list(m_chunk_size)
 {
 }
 

include/msgpack/v1/detail/cpp11_zone.hpp

@@ -171,7 +171,7 @@ private:
     finalizer_array m_finalizer_array;
 
 public:
-    zone(size_t chunk_size = MSGPACK_ZONE_CHUNK_SIZE) noexcept;
+    zone(size_t chunk_size = MSGPACK_ZONE_CHUNK_SIZE);
 
 public:
     void* allocate_align(size_t size, size_t align = MSGPACK_ZONE_ALIGN);
@@ -226,7 +226,7 @@ private:
     char* allocate_expand(size_t size);
 };
 
-inline zone::zone(size_t chunk_size) noexcept:m_chunk_size(chunk_size), m_chunk_list(m_chunk_size)
+inline zone::zone(size_t chunk_size):m_chunk_size(chunk_size), m_chunk_list(m_chunk_size)
 {
 }
 

include/msgpack/v1/fbuffer.hpp

@@ -31,6 +31,7 @@ public:
     {
         MSGPACK_ASSERT(buf || len == 0);
         if (!buf) return;
+        if (len == 0) return;
         if (1 != fwrite(buf, len, 1, m_file)) {
             throw std::runtime_error("fwrite() failed");
         }

include/msgpack/v1/object.hpp

@@ -32,11 +32,11 @@ struct object_kv {
     msgpack::object val;
 };
 
-struct object::with_zone : msgpack::object {
-    with_zone(msgpack::zone& z) : zone(z) { }
+struct object_with_zone_type : msgpack::object {
+    object_with_zone_type(msgpack::zone& z) : zone(z) { }
     msgpack::zone& zone;
 private:
-    with_zone();
+    object_with_zone_type();
 };
 
 

include/msgpack/v1/object_fwd.hpp

@@ -53,21 +53,23 @@ template <typename T>
 struct has_as {
 private:
     template <typename U>
-    static auto check(U*) ->
+    static auto check_(U*) ->
         // Check v1 specialization
         typename std::is_same<
             decltype(adaptor::as<U>()(std::declval<msgpack::object>())),
             T
         >::type;
     template <typename...>
-    static std::false_type check(...);
+    static std::false_type check_(...);
 public:
-    using type = decltype(check<T>(MSGPACK_NULLPTR));
+    using type = decltype(check_<T>(MSGPACK_NULLPTR));
     static constexpr bool value = type::value;
 };
 
 #endif // !defined(MSGPACK_USE_CPP03)
 
+struct object_with_zone_type;
+
 /// Object class that corresponding to MessagePack format object
 /**
  * See https://github.com/msgpack/msgpack-c/wiki/v1_1_cpp_object
@@ -219,7 +221,8 @@ struct object {
     template <typename T>
     object& operator=(const T& v);
 
-    struct with_zone;
+    // Not a nested struct (i.e. 'struct with_zone;') to work around MSVC C++20 modules error C2504
+    typedef object_with_zone_type with_zone;
 
 protected:
     struct implicit_type;

include/msgpack/v1/sbuffer.hpp

@@ -10,6 +10,7 @@
 #ifndef MSGPACK_V1_SBUFFER_HPP
 #define MSGPACK_V1_SBUFFER_HPP
 
+#include "msgpack/v1/cpp_config_decl.hpp"
 #include "msgpack/v1/sbuffer_decl.hpp"
 #include "msgpack/assert.hpp"
 

include/msgpack/v2/adaptor/v4raw_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 

include/msgpack/v2/object_fwd.hpp

@@ -79,7 +79,7 @@ template <typename T>
 struct has_as {
 private:
     template <typename U>
-    static auto check(U*) ->
+    static auto check_(U*) ->
         typename std::enable_if<
             // check v2 specialization
             std::is_same<
@@ -92,9 +92,9 @@ private:
             std::true_type
         >::type;
     template <typename...>
-    static std::false_type check(...);
+    static std::false_type check_(...);
 public:
-    using type = decltype(check<T>(MSGPACK_NULLPTR));
+    using type = decltype(check_<T>(MSGPACK_NULLPTR));
     static constexpr bool value = type::value;
 };
 

include/msgpack/v3/adaptor/v4raw_decl.hpp

@@ -12,6 +12,7 @@
 
 #include "msgpack/versioning.hpp"
 #include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/object.hpp"
 
 namespace msgpack {
 

include/msgpack/v3/object_fwd.hpp

@@ -36,7 +36,7 @@ template <typename T>
 struct has_as {
 private:
     template <typename U>
-    static auto check(U*) ->
+    static auto check_(U*) ->
         typename std::enable_if<
             // check v3 specialization
             std::is_same<
@@ -52,9 +52,9 @@ private:
             std::true_type
         >::type;
     template <typename...>
-    static std::false_type check(...);
+    static std::false_type check_(...);
 public:
-    using type = decltype(check<T>(MSGPACK_NULLPTR));
+    using type = decltype(check_<T>(MSGPACK_NULLPTR));
     static constexpr bool value = type::value;
 };
 

include/msgpack/version_master.hpp

@@ -1,3 +1,3 @@
-#define MSGPACK_VERSION_MAJOR    4
-#define MSGPACK_VERSION_MINOR    1
-#define MSGPACK_VERSION_REVISION 1
+#define MSGPACK_VERSION_MAJOR    7
+#define MSGPACK_VERSION_MINOR    0
+#define MSGPACK_VERSION_REVISION 0

make_file_list.sh

@@ -2,7 +2,7 @@
 
 find include -name "*.hpp" -or -name "*.h" | sed -e 's/\s\+/\n/g' | LC_ALL=C sort > cpp_headers.tmp
 
-echo 'SET (msgpackc_HEADERS' > Files.cmake
+echo 'SET (msgpack-cxx_HEADERS' > Files.cmake
 cat cpp_headers.tmp | sed -e 's/^/    /g' >> Files.cmake
 echo ')' >> Files.cmake
 

makedist.sh

@@ -32,7 +32,7 @@ tar --append --file=$filename $prefix/ChangeLog
 tar --append --file=$filename $prefix/NEWS
 tar --append --file=$filename $prefix/COPYING
 tar --append --file=$filename $prefix/README
-tar --append --file=$filename $prefix/msgpack-config.cmake.in
+tar --append --file=$filename $prefix/msgpack-cxx-config.cmake.in
 rm -f $prefix
 
 gzip -f $filename

msgpack-config.cmake.in

@@ -1,9 +0,0 @@
-@PACKAGE_INIT@
-
-include(CMakeFindDependencyMacro)
-
-find_dependency(Boost REQUIRED)
-
-include("${CMAKE_CURRENT_LIST_DIR}/msgpackc-cxx-targets.cmake")
-
-check_required_components(msgpackc-cxx)

msgpack-cxx-config.cmake.in

@@ -0,0 +1,11 @@
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+
+IF (@MSGPACK_USE_BOOST@)
+    find_dependency(Boost REQUIRED)
+ENDIF ()
+
+include("${CMAKE_CURRENT_LIST_DIR}/msgpack-cxx-targets.cmake")
+
+check_required_components(msgpack-cxx)

test-install/CMakeLists.txt

@@ -4,7 +4,7 @@ project(test-install LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-find_package(msgpack REQUIRED)
+find_package(msgpack-cxx REQUIRED)
 
 add_executable(test-install simple.cpp)
-target_link_libraries(test-install PRIVATE msgpackc-cxx)
+target_link_libraries(test-install PRIVATE msgpack-cxx)

test/CMakeLists.txt

@@ -1,6 +1,6 @@
 FIND_PACKAGE (Threads REQUIRED)
 FIND_PACKAGE (ZLIB)
-FIND_PACKAGE (Boost REQUIRED COMPONENTS unit_test_framework system)
+FIND_PACKAGE (Boost REQUIRED COMPONENTS unit_test_framework)
 
 LIST (APPEND check_PROGRAMS
     array_ref.cpp
@@ -8,7 +8,6 @@ LIST (APPEND check_PROGRAMS
     boost_optional.cpp
     boost_string_ref.cpp
     boost_string_view.cpp
-    boost_variant.cpp
     buffer.cpp
     carray.cpp
     cases.cpp
@@ -43,6 +42,7 @@ ENDIF ()
 
 IF (MSGPACK_CXX11 OR MSGPACK_CXX14 OR MSGPACK_CXX17 OR MSGPACK_CXX20)
     LIST (APPEND check_PROGRAMS
+        boost_variant.cpp
         iterator_cpp11.cpp
         msgpack_cpp11.cpp
         reference_cpp11.cpp
@@ -78,8 +78,7 @@ FOREACH (source_file ${check_PROGRAMS})
         $<IF:$<BOOL:${MSGPACK_USE_STATIC_BOOST}>,,BOOST_TEST_DYN_LINK>)
 
     TARGET_LINK_LIBRARIES (${source_file_we}
-        msgpackc-cxx
-        Boost::system
+        msgpack-cxx
         Boost::unit_test_framework
         Threads::Threads
         ZLIB::ZLIB
@@ -109,7 +108,7 @@ ADD_EXECUTABLE (
 )
 
 TARGET_LINK_LIBRARIES (multi_file
-    msgpackc-cxx
+    msgpack-cxx
 )
 
 ADD_TEST (multi_file multi_file)

test/boost_variant.cpp

@@ -264,7 +264,7 @@ BOOST_AUTO_TEST_CASE(pack_convert_variant_float)
     BOOST_CHECK(val2.is_double());
     BOOST_CHECK(fabs(12.34 - val2.as_double()) <= kEPS);
     BOOST_CHECK_NO_THROW(boost::get<double>(val2));
-    BOOST_CHECK(fabs(val2.as_double() - val2.as_double()) <= kEPS);
+    BOOST_CHECK(fabs(val1.as_double() - val2.as_double()) <= kEPS);
 }
 
 BOOST_AUTO_TEST_CASE(object_variant_float)
@@ -277,7 +277,8 @@ BOOST_AUTO_TEST_CASE(object_variant_float)
     BOOST_CHECK(val2.is_double());
     BOOST_CHECK(fabs(12.34 - val2.as_double()) <= kEPS);
     BOOST_CHECK_NO_THROW(boost::get<double>(val2));
-    BOOST_CHECK(fabs(val2.as_double() - val2.as_double()) <= kEPS);
+    BOOST_CHECK(fabs(val1.as_double() - val2.as_double()) <= kEPS);
+    BOOST_CHECK(val1 == val2);
 }
 
 BOOST_AUTO_TEST_CASE(object_with_zone_variant_float)
@@ -291,7 +292,116 @@ BOOST_AUTO_TEST_CASE(object_with_zone_variant_float)
     BOOST_CHECK(val2.is_double());
     BOOST_CHECK(fabs(12.34 - val2.as_double()) <= kEPS);
     BOOST_CHECK_NO_THROW(boost::get<double>(val2));
-    BOOST_CHECK(fabs(val2.as_double() - val2.as_double()) <= kEPS);
+    BOOST_CHECK(fabs(val1.as_double() - val2.as_double()) <= kEPS);
+    BOOST_CHECK(val1 == val2);
+}
+
+BOOST_AUTO_TEST_CASE(pack_convert_variant_float_zero_atdp_positive)
+{
+    std::stringstream ss;
+    msgpack::type::variant val1 = 12.0;
+    BOOST_CHECK(val1.is_uint64_t());
+    BOOST_CHECK_EQUAL(val1.as_uint64_t(), 12);
+    BOOST_CHECK(fabs(12.0 - val1.as_double()) <= kEPS);
+
+    msgpack::pack(ss, val1);
+
+    std::string const& str = ss.str();
+    msgpack::object_handle oh =
+        msgpack::unpack(str.data(), str.size());
+    msgpack::type::variant val2 = oh.get().as<msgpack::type::variant>();
+    BOOST_CHECK(val2.is_uint64_t());
+    BOOST_CHECK_EQUAL(val2.as_uint64_t(), 12);
+    BOOST_CHECK_NO_THROW(boost::get<uint64_t>(val2));
+    BOOST_CHECK(fabs(12.0 - val2.as_double()) <= kEPS);
+    BOOST_CHECK_EQUAL(val1.as_uint64_t(), val2.as_uint64_t());
+}
+
+BOOST_AUTO_TEST_CASE(object_variant_float_zero_atdp_positive)
+{
+    msgpack::type::variant val1 = 12.0;
+    BOOST_CHECK(val1.is_uint64_t());
+    BOOST_CHECK_EQUAL(val1.as_uint64_t(), 12);
+    BOOST_CHECK(fabs(12.0 - val1.as_double()) <= kEPS);
+    msgpack::object obj(val1);
+    msgpack::type::variant val2 = obj.as<msgpack::type::variant>();
+    BOOST_CHECK(val2.is_uint64_t());
+    BOOST_CHECK_EQUAL(val2.as_uint64_t(), 12);
+    BOOST_CHECK_NO_THROW(boost::get<uint64_t>(val2));
+    BOOST_CHECK(fabs(12.0 - val2.as_double()) <= kEPS);
+    BOOST_CHECK_EQUAL(val1.as_uint64_t(), val2.as_uint64_t());
+    BOOST_CHECK(val1 == val2);
+}
+
+BOOST_AUTO_TEST_CASE(object_with_zone_variant_float_zero_atdp_positive)
+{
+    msgpack::zone z;
+    msgpack::type::variant val1 = 12.0;
+    BOOST_CHECK(val1.is_uint64_t());
+    BOOST_CHECK_EQUAL(val1.as_uint64_t(), 12);
+    BOOST_CHECK(fabs(12.0 - val1.as_double()) <= kEPS);
+    msgpack::object obj(val1, z);
+    msgpack::type::variant val2 = obj.as<msgpack::type::variant>();
+    BOOST_CHECK(val2.is_uint64_t());
+    BOOST_CHECK_EQUAL(val2.as_uint64_t(), 12);
+    BOOST_CHECK_NO_THROW(boost::get<uint64_t>(val2));
+    BOOST_CHECK_EQUAL(val1.as_uint64_t(), val2.as_uint64_t());
+    BOOST_CHECK(fabs(12.0 - val2.as_double()) <= kEPS);
+    BOOST_CHECK(val1 == val2);
+}
+
+BOOST_AUTO_TEST_CASE(pack_convert_variant_float_zero_atdp_negative)
+{
+    std::stringstream ss;
+    msgpack::type::variant val1 = -12.0;
+    BOOST_CHECK(val1.is_int64_t());
+    BOOST_CHECK_EQUAL(val1.as_int64_t(), -12);
+    BOOST_CHECK(fabs(-12.0 - val1.as_double()) <= kEPS);
+
+    msgpack::pack(ss, val1);
+
+    std::string const& str = ss.str();
+    msgpack::object_handle oh =
+        msgpack::unpack(str.data(), str.size());
+    msgpack::type::variant val2 = oh.get().as<msgpack::type::variant>();
+    BOOST_CHECK(val2.is_int64_t());
+    BOOST_CHECK_EQUAL(val2.as_int64_t(), -12);
+    BOOST_CHECK_NO_THROW(boost::get<int64_t>(val2));
+    BOOST_CHECK(fabs(-12.0 - val2.as_double()) <= kEPS);
+    BOOST_CHECK_EQUAL(val1.as_int64_t(), val2.as_int64_t());
+}
+
+BOOST_AUTO_TEST_CASE(object_variant_float_zero_atdp_negative)
+{
+    msgpack::type::variant val1 = -12.0;
+    BOOST_CHECK(val1.is_int64_t());
+    BOOST_CHECK_EQUAL(val1.as_int64_t(), -12);
+    BOOST_CHECK(fabs(-12.0 - val1.as_double()) <= kEPS);
+    msgpack::object obj(val1);
+    msgpack::type::variant val2 = obj.as<msgpack::type::variant>();
+    BOOST_CHECK(val2.is_int64_t());
+    BOOST_CHECK_EQUAL(val2.as_int64_t(), -12);
+    BOOST_CHECK_NO_THROW(boost::get<int64_t>(val2));
+    BOOST_CHECK(fabs(-12.0 - val2.as_double()) <= kEPS);
+    BOOST_CHECK_EQUAL(val1.as_int64_t(), val2.as_int64_t());
+    BOOST_CHECK(val1 == val2);
+}
+
+BOOST_AUTO_TEST_CASE(object_with_zone_variant_float_zero_atdp_negative)
+{
+    msgpack::zone z;
+    msgpack::type::variant val1 = -12.0;
+    BOOST_CHECK(val1.is_int64_t());
+    BOOST_CHECK_EQUAL(val1.as_int64_t(), -12);
+    BOOST_CHECK(fabs(-12.0 - val1.as_double()) <= kEPS);
+    msgpack::object obj(val1, z);
+    msgpack::type::variant val2 = obj.as<msgpack::type::variant>();
+    BOOST_CHECK(val2.is_int64_t());
+    BOOST_CHECK_EQUAL(val2.as_int64_t(), -12);
+    BOOST_CHECK_NO_THROW(boost::get<int64_t>(val2));
+    BOOST_CHECK(fabs(-12.0 - val2.as_double()) <= kEPS);
+    BOOST_CHECK_EQUAL(val1.as_int64_t(), val2.as_int64_t());
+    BOOST_CHECK(val1 == val2);
 }
 
 // str

test/buffer.cpp

@@ -90,6 +90,7 @@ BOOST_AUTO_TEST_CASE(fbuffer)
     fbuf.write("a", 1);
     fbuf.write("a", 1);
     fbuf.write("a", 1);
+    fbuf.write("", 0);
 
     fflush(file);
     rewind(file);

test/msgpack_cpp11.cpp

@@ -252,6 +252,9 @@ struct equal_to : std::equal_to<Key> {
 template <class Key>
 struct set_allocator : std::allocator<Key> {
     using std::allocator<Key>::allocator;
+
+    template<class U>
+    struct rebind { using other = set_allocator<U>; };
 };
 
 // C++ named requirement Allocator implies that the first template type
@@ -262,6 +265,9 @@ struct set_allocator : std::allocator<Key> {
 template <typename KeyValuePair>
 struct map_allocator_impl : std::allocator<KeyValuePair> {
     using std::allocator<KeyValuePair>::allocator;
+
+    template<class U>
+    struct rebind { using other = map_allocator_impl<U>; };
 };
 
 template <class Key, class T>
@@ -270,6 +276,9 @@ using map_allocator = map_allocator_impl<std::pair<const Key, T>>;
 template <class T>
 struct allocator : std::allocator<T> {
     using std::allocator<T>::allocator;
+
+    template<class U>
+    struct rebind { using other = allocator<U>; };
 };
 
 } // namespace test
@@ -861,8 +870,6 @@ BOOST_AUTO_TEST_CASE(no_def_con_array_simple_buffer)
     BOOST_CHECK(val1 == val2);
 }
 
-#if !defined(MSGPACK_NO_BOOST)
-
 BOOST_AUTO_TEST_CASE(system_clock)
 {
     std::chrono::system_clock::time_point val1;
@@ -1428,8 +1435,6 @@ BOOST_AUTO_TEST_CASE(high_resolution_clock_impl_now)
     BOOST_CHECK(val1 == val3);
 }
 
-#endif // !defined(MSGPACK_NO_BOOST)
-
 
 BOOST_AUTO_TEST_CASE(timespec_pack_convert_zero)
 {

test/msgpack_cpp17.cpp

@@ -461,4 +461,52 @@ BOOST_AUTO_TEST_CASE(carray_byte_object_with_zone)
     }
 }
 
+#if defined(MSGPACK_USE_STD_VARIANT_ADAPTOR)
+
+BOOST_AUTO_TEST_CASE(variant_pack_unpack_as) {
+    std::stringstream ss;
+    std::variant<bool, int, float, double> val1{1.0};
+    msgpack::pack(ss, val1);
+    std::string const& str = ss.str();
+    msgpack::object_handle oh =
+        msgpack::unpack(str.data(), str.size());
+    std::variant<bool, int, float, double> val2 =
+        oh.get().as<std::variant<bool, int, float, double> >();
+    BOOST_CHECK(val1 == val2);
+    BOOST_CHECK_THROW((oh.get().as<std::variant<bool>>()), msgpack::type_error);
+
+    {
+      std::stringstream same_ss;
+      std::variant<int, float, int> same_expected{std::in_place_index<2>, 2};
+      msgpack::pack(same_ss, same_expected);
+      std::string const& same_str = same_ss.str();
+      msgpack::object_handle same_oh =
+          msgpack::unpack(same_str.data(), same_str.size());
+      std::variant<int, float, int> same_actual = same_oh->as<std::variant<int, float, int>>();
+      BOOST_CHECK(same_expected == same_actual);
+    }
+
+    {
+      std::stringstream same_ss;
+      std::variant<int, int> same_expected{std::in_place_index<1>, 2};
+      msgpack::pack(same_ss, same_expected);
+      std::string const& same_str = same_ss.str();
+      msgpack::object_handle same_oh =
+          msgpack::unpack(same_str.data(), same_str.size());
+      std::variant<int, int> same_actual = same_oh->as<std::variant<int, int>>();
+      BOOST_CHECK(same_expected == same_actual);
+    }
+}
+
+BOOST_AUTO_TEST_CASE(variant_with_zone) {
+    msgpack::zone z;
+    std::variant<bool, int, float, double> val1{1.0};
+    msgpack::object obj(val1, z);
+    std::variant<bool, int, float, double> val2 = obj.as<std::variant<bool, int, float, double>>();
+    BOOST_CHECK(val1 == val2);
+    BOOST_CHECK_THROW((obj.as<std::variant<bool>>()), msgpack::type_error);
+}
+
+#endif // defined(MSGPACK_USE_STD_VARIANT_ADAPTOR)
+
 #endif // MSGPACK_CPP_VERSION >= 201703