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

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

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-# Copyright 2021-2024 Andrey Semashev
+# Copyright 2021-2025 Andrey Semashev
 #
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
@@ -71,12 +71,14 @@ jobs:
               - g++-8
           - toolset: gcc-9
             cxxstd: "11,14,17,2a"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - g++-9
           - toolset: gcc-10
             cxxstd: "11,14,17,20"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - g++-10
           - toolset: gcc-11
@@ -91,18 +93,28 @@ jobs:
               - g++-12
           - toolset: gcc-13
             cxxstd: "11,14,17,20,23"
-            os: ubuntu-latest
+            os: ubuntu-24.04
-            container: ubuntu:23.04
             install:
               - g++-13
+          - toolset: gcc-14
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-24.04
+            install:
+              - g++-14
+          - toolset: gcc-15
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-latest
+            container: ubuntu:25.04
+            install:
+              - g++-15
           - name: UBSAN
-            toolset: gcc-11
+            toolset: gcc-13
             cxxstd: "11,14,17,20,23"
             ubsan: 1
             build_variant: debug
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
-              - g++-11
+              - g++-13
 
           # Linux, clang
           - toolset: clang
@@ -181,13 +193,15 @@ jobs:
           - toolset: clang
             compiler: clang++-9
             cxxstd: "11,14,17,2a"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - clang-9
           - toolset: clang
             compiler: clang++-10
             cxxstd: "11,14,17,20"
-            os: ubuntu-20.04
+            os: ubuntu-latest
+            container: ubuntu:20.04
             install:
               - clang-10
           - toolset: clang
@@ -231,62 +245,72 @@ jobs:
           - toolset: clang
             compiler: clang++-16
             cxxstd: "11,14,17,20,2b"
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
               - clang-16
-            sources:
+              - g++-11
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-16 main"
+            gcc_toolchain: 11
-            source_keys:
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
           - toolset: clang
             compiler: clang++-17
             cxxstd: "11,14,17,20,23"
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
               - clang-17
-            sources:
+              - g++-11
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-17 main"
+            gcc_toolchain: 11
-            source_keys:
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
           - toolset: clang
-            compiler: clang++-17
+            compiler: clang++-18
-            cxxstd: "11,14,17,20,23"
+            cxxstd: "11,14,17,20,23,26"
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
-              - clang-17
+              - clang-18
-              - libc++-17-dev
+              - g++-13
-              - libc++abi-17-dev
+          - toolset: clang
-            sources:
+            compiler: clang++-19
-              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-17 main"
+            cxxstd: "11,14,17,20,23,26"
-            source_keys:
+            os: ubuntu-24.04
-              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+            install:
+              - clang-19
+          - toolset: clang
+            compiler: clang++-20
+            cxxstd: "11,14,17,20,23,26"
+            os: ubuntu-latest
+            container: ubuntu:25.04
+            install:
+              - clang-20
+          - toolset: clang
+            compiler: clang++-20
+            cxxstd: "11,14,17,20,23,26"
             cxxflags: -stdlib=libc++
             linkflags: -stdlib=libc++
+            os: ubuntu-latest
+            container: ubuntu:25.04
+            install:
+              - clang-20
+              - libc++-20-dev
+              - libc++abi-20-dev
           - name: UBSAN
             toolset: clang
-            compiler: clang++-15
+            compiler: clang++-18
-            cxxstd: "11,14,17,20,2b"
+            cxxstd: "11,14,17,20,23,26"
             cxxflags: -stdlib=libc++
             linkflags: -stdlib=libc++
             ubsan: 1
             build_variant: debug
-            os: ubuntu-22.04
+            os: ubuntu-24.04
             install:
-              - clang-15
+              - clang-18
-              - libc++-15-dev
+              - libc++-18-dev
-              - libc++abi-15-dev
+              - libc++abi-18-dev
 
-          - toolset: clang
-            cxxstd: "11,14,17,20,2b"
-            os: macos-12
-          - toolset: clang
-            cxxstd: "11,14,17,20,2b"
-            os: macos-13
           - toolset: clang
             cxxstd: "11,14,17,20,2b"
             os: macos-14
+          - toolset: clang
+            cxxstd: "11,14,17,20,23"
+            os: macos-15
 
-    timeout-minutes: 20
+    timeout-minutes: 30
     runs-on: ${{matrix.os}}
     container: ${{matrix.container}}
 
@@ -303,6 +327,22 @@ jobs:
                 echo "GHA_CONTAINER=${{matrix.container}}" >> $GITHUB_ENV
                 if [ -f "/etc/debian_version" ]
                 then
+                    # Use Azure APT mirrors in containers to avoid HTTP errors due to DDoS filters triggered by lots of CI jobs launching concurrently.
+                    # Note that not all Ubuntu versions support "mirror+file:..." URIs in APT sources, so just use Azure mirrors exclusively.
+                    # Note also that on recent Ubuntu versions DEB822 format is used for source files.
+                    APT_SOURCES=()
+                    if [ -d "/etc/apt/sources.list.d" ]
+                    then
+                        readarray -t APT_SOURCES < <(find "/etc/apt/sources.list.d" -type f -name '*.sources' -print)
+                    fi
+                    if [ -f "/etc/apt/sources.list" ]
+                    then
+                        APT_SOURCES+=("/etc/apt/sources.list")
+                    fi
+                    if [ "${#APT_SOURCES[@]}" -gt 0 ]
+                    then
+                        sed -i -E -e 's!([^ ]+) (http|https)://(archive|security)\.ubuntu\.com/ubuntu[^ ]*(.*)!\1 http://azure.archive.ubuntu.com/ubuntu/\4!' "${APT_SOURCES[@]}"
+                    fi
                     apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
                     if [ "$(apt-cache search "^python-is-python3$" | wc -l)" -ne 0 ]
                     then
@@ -504,14 +544,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - toolset: msvc-14.0
-            cxxstd: "14"
-            addrmd: 32,64
-            os: windows-2019
-          - toolset: msvc-14.2
-            cxxstd: "14,17,20,latest"
-            addrmd: 32,64
-            os: windows-2019
           - toolset: msvc-14.3
             cxxstd: "14,17,20,latest"
             addrmd: 32,64
@@ -521,11 +553,11 @@ jobs:
             addrmd: 32,64
             os: windows-2022
           - toolset: gcc
-            cxxstd: "11,14,17,2a"
+            cxxstd: "11,14,17,20,23"
             addrmd: 64
-            os: windows-2019
+            os: windows-2022
 
-    timeout-minutes: 20
+    timeout-minutes: 30
     runs-on: ${{matrix.os}}
 
     steps:

README.md

@@ -18,8 +18,8 @@ Boost.Parameter, part of collection of the [Boost C++ Libraries](https://github.
 
 Branch          | GitHub Actions | AppVeyor | Test Matrix | Dependencies |
 :-------------: | -------------- | -------- | ----------- | ------------ |
-[`master`](https://github.com/boostorg/parameter/tree/master) | [![GitHub Actions](https://github.com/boostorg/parameter/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/parameter/actions?query=branch%3Amaster) | [![AppVeyor](https://ci.appveyor.com/api/projects/status/e9iptg55otiv040a/branch/master?svg=true)](https://ci.appveyor.com/project/Lastique/parameter/branch/master) | [![Tests](https://img.shields.io/badge/matrix-master-brightgreen.svg)](http://www.boost.org/development/tests/master/developer/parameter.html) | [![Dependencies](https://img.shields.io/badge/deps-master-brightgreen.svg)](https://pdimov.github.io/boostdep-report/master/parameter.html)
+[`master`](https://github.com/boostorg/parameter/tree/master) | [![GitHub Actions](https://github.com/boostorg/parameter/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/boostorg/parameter/actions?query=branch%3Amaster) | [![AppVeyor](https://ci.appveyor.com/api/projects/status/e9iptg55otiv040a/branch/master?svg=true)](https://ci.appveyor.com/project/Lastique/parameter/branch/master) | [![Tests](https://img.shields.io/badge/matrix-master-brightgreen.svg)](https://regression.boost.io/master/developer/parameter.html) | [![Dependencies](https://img.shields.io/badge/deps-master-brightgreen.svg)](https://pdimov.github.io/boostdep-report/master/parameter.html)
-[`develop`](https://github.com/boostorg/parameter/tree/develop) | [![GitHub Actions](https://github.com/boostorg/parameter/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/parameter/actions?query=branch%3Adevelop) | [![AppVeyor](https://ci.appveyor.com/api/projects/status/e9iptg55otiv040a/branch/develop?svg=true)](https://ci.appveyor.com/project/Lastique/parameter/branch/develop) | [![Tests](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](http://www.boost.org/development/tests/develop/developer/parameter.html) | [![Dependencies](https://img.shields.io/badge/deps-develop-brightgreen.svg)](https://pdimov.github.io/boostdep-report/develop/parameter.html)
+[`develop`](https://github.com/boostorg/parameter/tree/develop) | [![GitHub Actions](https://github.com/boostorg/parameter/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/boostorg/parameter/actions?query=branch%3Adevelop) | [![AppVeyor](https://ci.appveyor.com/api/projects/status/e9iptg55otiv040a/branch/develop?svg=true)](https://ci.appveyor.com/project/Lastique/parameter/branch/develop) | [![Tests](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](https://regression.boost.io/develop/developer/parameter.html) | [![Dependencies](https://img.shields.io/badge/deps-develop-brightgreen.svg)](https://pdimov.github.io/boostdep-report/develop/parameter.html)
 
 ### License
 

appveyor.yml

@@ -1,6 +1,6 @@
 # Copyright 2017 Edward Diener
 # Copyright 2017 Cromwell D. Enage
-# Copyright 2021-2022 Andrey Semashev
+# Copyright 2021-2025 Andrey Semashev
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at
 # http://boost.org/LICENSE_1_0.txt)
@@ -25,8 +25,12 @@ environment:
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
     - ARGS: toolset=msvc-14.3 address-model=32,64 cxxstd=14,17,20,latest
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
-    - ARGS: toolset=clang-win address-model=32,64 cxxstd=14,17,latest
+    - ARGS: toolset=clang-win address-model=64 cxxstd=14,17,latest
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      ENV_SCRIPT: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    - ARGS: toolset=clang-win address-model=32 cxxstd=14,17,latest
+      ENV_SCRIPT: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars32.bat
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
     - ARGS: toolset=gcc address-model=32 cxxstd=11,14,1z
       PATH: C:\cygwin\bin;%PATH%
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
@@ -36,12 +40,15 @@ environment:
     - ARGS: toolset=gcc address-model=32 cxxstd=11,14
       PATH: C:\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin;%PATH%
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - ARGS: toolset=gcc address-model=64 cxxstd=11,14,1z
-      PATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;%PATH%
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
     - ARGS: toolset=gcc address-model=64 cxxstd=11,14,1z
       PATH: C:\mingw-w64\x86_64-7.3.0-posix-seh-rt_v5-rev0\mingw64\bin;%PATH%
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - ARGS: toolset=gcc address-model=64 cxxstd=11,14,17,2a
+      PATH: C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;%PATH%
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - ARGS: toolset=gcc address-model=32 cxxstd=11,14,17,2a
+      PATH: C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;%PATH%
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
 
 install:
   - set GIT_FETCH_JOBS=8
@@ -64,4 +71,5 @@ install:
 build: off
 
 test_script:
+  - if not "%ENV_SCRIPT%" == "" call "%ENV_SCRIPT%"
   - b2 -j %NUMBER_OF_PROCESSORS% libs/parameter/test %ARGS%

config/Jamfile.v2

@@ -0,0 +1,8 @@
+# Copyright Andrey Semashev 2025.
+#
+# 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)
+
+exe graph_supported : graph_supported.cpp : <library>/boost/graph//boost_graph ;
+explicit graph_supported ;

config/graph_supported.cpp

@@ -0,0 +1,18 @@
+/*
+ *             Copyright Andrey Semashev 2025.
+ * 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)
+ */
+
+// This test checks whether the portion of Boost.Graph that is used by Boost.Parameter tests
+// is compatible with the current compiler. The headers listed below are used in Boost.Parameter tests.
+
+#include <boost/graph/graph_traits.hpp>
+#include <boost/graph/properties.hpp>
+#include <boost/graph/depth_first_search.hpp>
+#include <boost/graph/adjacency_list.hpp>
+
+int main()
+{
+}

test/Jamfile.v2

@@ -1,5 +1,7 @@
 # Copyright David Abrahams, Daniel Wallin 2006.
 # Copyright Cromwell D. Enage 2017.
+# Copyright Andrey Semashev 2025.
+#
 # 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)
@@ -305,7 +307,6 @@ alias parameter_literate_tests
         :
             <define>BOOST_PARAMETER_MAX_ARITY=5
             <define>BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY=6
-            <library>/boost/graph//boost_graph
         :
         :
             <preserve-target-tests>off
@@ -426,9 +427,10 @@ alias parameter_literate_tests
         :
         :
         :
+            [ check-target-builds ../config//graph_supported "Boost.Graph compiles" : <library>/boost/graph//boost_graph : <build>no ]
+
             <define>BOOST_PARAMETER_MAX_ARITY=5
             <define>BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY=6
-            <library>/boost/graph//boost_graph
         :
         :
             <preserve-target-tests>off

test/literate/default-expression-evaluation0.cpp

@@ -8,8 +8,6 @@ BOOST_PARAMETER_NAME(root_vertex)
 BOOST_PARAMETER_NAME(index_map)
 BOOST_PARAMETER_NAME(color_map)
 
-#include <boost/graph/depth_first_search.hpp> // for dfs_visitor
-
 BOOST_PARAMETER_FUNCTION((bool), depth_first_search, tag,
     (required
         (graph, *)