Merge branch 'release/v0.4.0'

fktn-k · Dec 10, 2024 · 5fdd76e · 5fdd76e
2 parents 05dc36d + e9e87ed
commit 5fdd76e
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diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
@@ -52,32 +52,6 @@ jobs:
       working-directory: ${{github.workspace}}/build
       run: ctest -C ${{matrix.build_type}} --output-on-failure -j ${{env.JOBS}}
 
-  xcode_for_macos12:
-    timeout-minutes: 10
-    runs-on: macos-12
-    strategy:
-      matrix:
-        xcode: [ '13.1', '13.2.1', '13.3.1', '13.4.1', '14.0.1', '14.1', '14.2' ]
-        build_type: [ Debug, Release ]
-    env:
-      DEVELOPER_DIR: /Applications/Xcode_${{matrix.xcode}}.app/Contents/Developer
-      JOBS: 2
-
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: recursive
-
-    - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DFK_YAML_BUILD_TEST=ON
-
-    - name: Build
-      run: cmake --build ${{github.workspace}}/build --config ${{matrix.build_type}} -j ${{env.JOBS}}
-
-    - name: Test
-      working-directory: ${{github.workspace}}/build
-      run: ctest -C ${{matrix.build_type}} --output-on-failure -j ${{env.JOBS}}
-
   xcode_for_macos13:
     timeout-minutes: 10
     runs-on: macos-13
@@ -109,7 +83,10 @@ jobs:
     runs-on: macos-14
     strategy:
       matrix:
-        xcode: [ '14.3.1', '15.0.1', '15.1', '15.2', '15.3', '15.4', '16' ]
+        # The macos-14 runner image will contain only Xcode 15.x versions due to support policy changes.
+        # Xcode 16.x versions are tested with the macos-15 runner image.
+        # See https://github.com/actions/runner-images/issues/10703 for more details.
+        xcode: [ '15.0.1', '15.1', '15.2', '15.3', '15.4' ]
         build_type: [ Debug, Release ]
     env:
       DEVELOPER_DIR: /Applications/Xcode_${{matrix.xcode}}.app/Contents/Developer
@@ -135,7 +112,9 @@ jobs:
     runs-on: macos-15
     strategy:
       matrix:
-        xcode: [ '16' ]
+        # The macos-14 runner image will contain only Xcode 16.x versions.
+        # See https://github.com/actions/runner-images/issues/10703 for more details.
+        xcode: [ '16', '16.1' ]
         build_type: [ Debug, Release ]
     env:
       DEVELOPER_DIR: /Applications/Xcode_${{matrix.xcode}}.app/Contents/Developer

diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
@@ -200,7 +200,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        compiler: [ "3.5", "3.6", "3.7", "3.8", "3.9", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", latest ]
+        compiler: [ "3.4", "3.5", "3.6", "3.7", "3.8", "3.9", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19" ]
         build_type: [ Debug, Release ]
     container: silkeh/clang:${{matrix.compiler}}
 
@@ -270,6 +270,63 @@ jobs:
         cd ${{github.workspace}}/build
         ctest -C ${{matrix.build_type}} --output-on-failure -j ${{env.JOBS}}
 
+  ci_test_older_gcc_versions:
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        build_type: [ Debug, Release ]
+        gcc_ver: [ '4.8', '5', '6' ]
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - name: add repository commonly needed to install GCC
+      run: |
+        sudo apt-get update
+        sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+        sudo apt-get update
+
+    - name: add repository for GCC 4.8 or 5
+      run: |
+        sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5
+        sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32
+        sudo apt-get update
+
+        # for g++-4.8, g++-5
+        sudo apt-add-repository 'deb http://archive.ubuntu.com/ubuntu/ xenial main'
+        sudo apt-add-repository 'deb http://archive.ubuntu.com/ubuntu/ xenial universe'
+
+        sudo apt-get update
+      if: ${{ matrix.gcc_ver == '4.8' || matrix.gcc_ver == '5' }}
+
+    - name: add repository for GCC 6
+      run: |
+        sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5
+        sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32
+        sudo apt-get update
+
+        # for g++-6
+        sudo apt-add-repository 'deb http://archive.ubuntu.com/ubuntu/ bionic main'
+        sudo apt-add-repository 'deb http://archive.ubuntu.com/ubuntu/ bionic universe'
+
+        sudo apt-get update
+      if: ${{ matrix.gcc_ver == '6' }}
+
+    - name: install GCC
+      run: sudo apt-get install --no-install-recommends -y g++-${{matrix.gcc_ver}}
+
+    - name: Configure CMake
+      run: CXX=g++-${{matrix.gcc_ver}} cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DFK_YAML_BUILD_TEST=ON
+
+    - name: Build & Test
+      run: |
+        cmake --build ${{github.workspace}}/build --config ${{matrix.build_type}} -j ${{env.JOBS}}
+        cd ${{github.workspace}}/build
+        ctest -C ${{matrix.build_type}} --output-on-failure -j ${{env.JOBS}}
+
   ci_test_icpx:
     runs-on: ubuntu-latest
     strategy:

diff --git a/.reuse/templates/fkYAML.jinja2 b/.reuse/templates/fkYAML.jinja2
@@ -1,6 +1,6 @@
  _______   __ __   __  _____   __  __  __
 |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library
-|   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+|   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 
 {% for copyright_line in copyright_lines %}

diff --git a/.reuse/templates/fkYAML_support.jinja2 b/.reuse/templates/fkYAML_support.jinja2
@@ -1,6 +1,6 @@
  _______   __ __   __  _____   __  __  __
 |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-|   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+|   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 
 {% for copyright_line in copyright_lines %}

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [v0.4.0](https://github.com/fktn-k/fkYAML/releases/tag/v0.4.0) (2024-12-10)
+
+[Full Changelog](https://github.com/fktn-k/fkYAML/compare/v0.3.14...v0.4.0)
+
+- Fix round-trip issue in float serialization using scientific notation [\#439](https://github.com/fktn-k/fkYAML/pull/439) ([fktn-k](https://github.com/fktn-k))
+- Fix parsing input which begins with a newline & indentation [\#437](https://github.com/fktn-k/fkYAML/pull/437) ([fktn-k](https://github.com/fktn-k))
+- Fixed bugs in parsing block scalars [\#435](https://github.com/fktn-k/fkYAML/pull/435) ([fktn-k](https://github.com/fktn-k))
+- Emit error if an anchor is specified to an alias [\#434](https://github.com/fktn-k/fkYAML/pull/434) ([fktn-k](https://github.com/fktn-k))
+- Stop throwing parse\_error on string-to-int/float conversion failures if not forced with tag [\#431](https://github.com/fktn-k/fkYAML/pull/431) ([fktn-k](https://github.com/fktn-k))
+- Resolve the C4800 warning when compiled with MSVC [\#430](https://github.com/fktn-k/fkYAML/pull/430) ([fktn-k](https://github.com/fktn-k))
+
+- Support reverse iterations over sequence/mapping nodes [\#440](https://github.com/fktn-k/fkYAML/pull/440) ([fktn-k](https://github.com/fktn-k))
+- Make node iterators compatible with different value type const-ness [\#438](https://github.com/fktn-k/fkYAML/pull/438) ([fktn-k](https://github.com/fktn-k))
+- Add more GCC & Clang versions to use in GitHub Actions workflows [\#436](https://github.com/fktn-k/fkYAML/pull/436) ([fktn-k](https://github.com/fktn-k))
+- Update GitHub Actions workflow jobs using macOS related runner images [\#433](https://github.com/fktn-k/fkYAML/pull/433) ([fktn-k](https://github.com/fktn-k))
+- Support parsing multiline plain scalars [\#432](https://github.com/fktn-k/fkYAML/pull/432) ([fktn-k](https://github.com/fktn-k))
+
 ## [v0.3.14](https://github.com/fktn-k/fkYAML/releases/tag/v0.3.14) (2024-11-16)
 
 [Full Changelog](https://github.com/fktn-k/fkYAML/compare/v0.3.13...v0.3.14)

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.8)
 
 project(
   fkYAML
-  VERSION 0.3.14
+  VERSION 0.4.0
   LANGUAGES CXX)
 
 #############################################################

diff --git a/Makefile b/Makefile
@@ -15,13 +15,13 @@ TOOL_SRCS = $(shell find tool -type f -name '*.cpp' | sort)
 
 # target version definition
 TARGET_MAJOR_VERSION := 0
-TARGET_MINOR_VERSION := 3
-TARGET_PATCH_VERSION := 14
+TARGET_MINOR_VERSION := 4
+TARGET_PATCH_VERSION := 0
 TARGET_VERSION_FULL := $(TARGET_MAJOR_VERSION).$(TARGET_MINOR_VERSION).$(TARGET_PATCH_VERSION)
 VERSION_MACRO_FILE := include/fkYAML/detail/macros/version_macros.hpp
 
 # system
-JOBS = $(($(shell grep cpu.cores /proc/cpuinfo | sort -u | sed 's/[^0-9]//g') + 1))
+JOBS = $(($(shell grep cpu.cores /proc/cpuinfo | sort -u | sed 's/[^0-9]//g') - 1))
 
 ###############################################
 #   documentation of the Makefile's targets   #

diff --git a/README.md b/README.md
@@ -90,19 +90,15 @@ Currently, the following compilers are known to work and used in GitHub Actions
 
 | Compiler                   | Operating System                                                                                               |
 | -------------------------- | -------------------------------------------------------------------------------------------------------------- |
-| AppleClang 13.0.0.13000029 | [macOS 12](https://github.com/actions/runner-images/blob/main/images/macos/macos-12-Readme.md)                 |
-| AppleClang 13.1.6.13160021 | [macOS 12](https://github.com/actions/runner-images/blob/main/images/macos/macos-12-Readme.md)                 |
-| AppleClang 14.0.0.14000029 | [macOS 12](https://github.com/actions/runner-images/blob/main/images/macos/macos-12-Readme.md)                 |
 | AppleClang 14.0.0.14000029 | [macOS 13](https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md)                 |
 | AppleClang 14.0.3.14030022 | [macOS 13](https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md)                 |
-| AppleClang 14.0.3.14030022 | [macOS 14](https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md)                 |
 | AppleClang 15.0.0.15000040 | [macOS 13](https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md)                 |
 | AppleClang 15.0.0.15000040 | [macOS 14](https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md)                 |
 | AppleClang 15.0.0.15000100 | [macOS 13](https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md)                 |
 | AppleClang 15.0.0.15000100 | [macOS 14](https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md)                 |
 | AppleClang 15.0.0.15000309 | [macOS 14](https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md)                 |
-| AppleClang 16.0.0.16000026 | [macOS 14](https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md)                 |
 | AppleClang 16.0.0.16000026 | [macOS 15](https://github.com/actions/runner-images/blob/main/images/macos/macos-15-Readme.md)                 |
+| Clang 3.4.2                | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | Clang 3.5.2                | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | Clang 3.6.2                | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | Clang 3.7.1                | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
@@ -122,14 +118,18 @@ Currently, the following compilers are known to work and used in GitHub Actions
 | Clang 16.0.6               | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | Clang 17.0.6               | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | Clang 18.1.6               | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
+| Clang 19.1.4               | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
+| GCC 4.8.5                  | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
+| GCC 5.3.1                  | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
+| GCC 6.4.0                  | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 7.5.0                  | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 8.5.0                  | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 9.5.0                  | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 10.5.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 11.4.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 12.3.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 13.3.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
-| GCC 14.1.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
+| GCC 14.2.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | IntelLLVM 2024.1.2         | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | MinGW-64 8.1.0             | [Windows Server 2019](https://github.com/actions/runner-images/blob/main/images/windows/Windows2019-Readme.md) |
 | MinGW-64 12.2.0            | [Windows Server 2022](https://github.com/actions/runner-images/blob/main/images/windows/Windows2022-Readme.md) |

diff --git a/docs/examples/CMakeLists.txt b/docs/examples/CMakeLists.txt
@@ -3,15 +3,26 @@
 #############################
 
 add_library(example_common_config INTERFACE)
-target_include_directories(
+target_link_libraries(
   example_common_config
   INTERFACE
-    ${CMAKE_CURRENT_BINARY_DIR}/include
+    ${FK_YAML_TARGET_NAME}
 )
-target_link_libraries(
+target_compile_options(
   example_common_config
   INTERFACE
-    ${FK_YAML_TARGET_NAME}
+    # MSVC
+    $<$<CXX_COMPILER_ID:MSVC>:
+      /wd4996 # examples contain deprecated APIs.
+    >
+    # GNU
+    $<$<CXX_COMPILER_ID:GNU>:
+      -Wno-deprecated-declarations # examples contain deprecated APIs.
+    >
+    # Clang
+    $<$<CXX_COMPILER_ID:Clang>:
+      -Wno-deprecated-declarations #examples contain deprecated APIs.
+    >
 )
 
 ###############################
@@ -23,13 +34,14 @@ foreach(TUT_SRC_FILE ${TUT_SRC_FILES})
   file(RELATIVE_PATH REL_TUT_SRC_FILE ${CMAKE_CURRENT_SOURCE_DIR} ${TUT_SRC_FILE})
   string(REPLACE ".cpp" "" TUT_SRC_FILE_BASE ${REL_TUT_SRC_FILE})
   add_executable(${TUT_SRC_FILE_BASE} ${TUT_SRC_FILE})
-  target_link_libraries(${TUT_SRC_FILE_BASE} ${FK_YAML_TARGET_NAME})
+  target_link_libraries(${TUT_SRC_FILE_BASE} example_common_config)
 
   add_custom_command(
     TARGET ${TUT_SRC_FILE_BASE}
     POST_BUILD
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_SOURCE_DIR}/example.yaml $<TARGET_FILE_DIR:${TUT_SRC_FILE_BASE}>
     COMMAND $<TARGET_FILE:${TUT_SRC_FILE_BASE}> > ${CMAKE_CURRENT_SOURCE_DIR}/${TUT_SRC_FILE_BASE}.output
+    WORKING_DIRECTORY $<TARGET_FILE_DIR:${TUT_SRC_FILE_BASE}>
   )
 endforeach()
 
@@ -44,13 +56,14 @@ foreach(EX_SRC_FILE ${EX_SRC_FILES})
   file(RELATIVE_PATH REL_EX_SRC_FILE ${CMAKE_CURRENT_SOURCE_DIR} ${EX_SRC_FILE})
   string(REPLACE ".cpp" "" EX_SRC_FILE_BASE ${REL_EX_SRC_FILE})
   add_executable(${EX_SRC_FILE_BASE} ${EX_SRC_FILE})
-  target_link_libraries(${EX_SRC_FILE_BASE} ${FK_YAML_TARGET_NAME})
+  target_link_libraries(${EX_SRC_FILE_BASE} example_common_config)
 
   add_custom_command(
     TARGET ${EX_SRC_FILE_BASE}
     POST_BUILD
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_SOURCE_DIR}/input.yaml $<TARGET_FILE_DIR:${EX_SRC_FILE_BASE}>
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_SOURCE_DIR}/input_multi.yaml $<TARGET_FILE_DIR:${EX_SRC_FILE_BASE}>
     COMMAND $<TARGET_FILE:${EX_SRC_FILE_BASE}> > ${CMAKE_CURRENT_SOURCE_DIR}/${EX_SRC_FILE_BASE}.output
+    WORKING_DIRECTORY $<TARGET_FILE_DIR:${EX_SRC_FILE_BASE}>
   )
 endforeach()
diff --git a/docs/examples/ex_basic_node_add_anchor_name.cpp b/docs/examples/ex_basic_node_add_anchor_name.cpp
@@ -1,6 +1,6 @@
 //  _______   __ __   __  _____   __  __  __
 // |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 // |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 //
 // SPDX-FileCopyrightText: 2023-2024 Kensuke Fukutani <fktn.dev@gmail.com>

diff --git a/docs/examples/ex_basic_node_add_tag_name.cpp b/docs/examples/ex_basic_node_add_tag_name.cpp
@@ -1,6 +1,6 @@
 //  _______   __ __   __  _____   __  __  __
 // |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 // |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 //
 // SPDX-FileCopyrightText: 2023-2024 Kensuke Fukutani <fktn.dev@gmail.com>

diff --git a/docs/examples/ex_basic_node_alias_of.cpp b/docs/examples/ex_basic_node_alias_of.cpp
@@ -1,6 +1,6 @@
 //  _______   __ __   __  _____   __  __  __
 // |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 // |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 //
 // SPDX-FileCopyrightText: 2023-2024 Kensuke Fukutani <fktn.dev@gmail.com>

diff --git a/docs/examples/ex_basic_node_at_basic_node.cpp b/docs/examples/ex_basic_node_at_basic_node.cpp
@@ -1,6 +1,6 @@
 //  _______   __ __   __  _____   __  __  __
 // |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 // |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 //
 // SPDX-FileCopyrightText: 2023-2024 Kensuke Fukutani <fktn.dev@gmail.com>

diff --git a/docs/examples/ex_basic_node_at_compatible_type.cpp b/docs/examples/ex_basic_node_at_compatible_type.cpp
@@ -1,6 +1,6 @@
 //  _______   __ __   __  _____   __  __  __
 // |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 // |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 //
 // SPDX-FileCopyrightText: 2023-2024 Kensuke Fukutani <fktn.dev@gmail.com>

diff --git a/docs/examples/ex_basic_node_begin.cpp b/docs/examples/ex_basic_node_begin.cpp
@@ -1,6 +1,6 @@
 //  _______   __ __   __  _____   __  __  __
 // |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 // |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 //
 // SPDX-FileCopyrightText: 2023-2024 Kensuke Fukutani <fktn.dev@gmail.com>

diff --git a/docs/examples/ex_basic_node_boolean_type.cpp b/docs/examples/ex_basic_node_boolean_type.cpp
@@ -1,6 +1,6 @@
 //  _______   __ __   __  _____   __  __  __
 // |   __| |_/  |  \_/  |/  _  \ /  \/  \|  |     fkYAML: A C++ header-only YAML library (supporting code)
-// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.3.14
+// |   __|  _  < \_   _/|  ___  |    _   |  |___  version 0.4.0
 // |__|  |_| \__|  |_|  |_|   |_|___||___|______| https://github.com/fktn-k/fkYAML
 //
 // SPDX-FileCopyrightText: 2023-2024 Kensuke Fukutani <fktn.dev@gmail.com>

diff --git a/docs/examples/ex_basic_node_const_iterator.output b/docs/examples/ex_basic_node_const_iterator.output