feat: require C++23 ranges container support

.github/workflows/build.yml

@@ -18,8 +18,8 @@ jobs:
     name: ${{ matrix.preset }} / ${{ matrix.os }} / ${{ matrix.compiler }}
     runs-on: ${{ matrix.os }}
     env:
-      CC: ${{ matrix.compiler == 'gcc' && 'gcc' || 'clang' }}
-      CXX: ${{ matrix.compiler == 'gcc' && 'g++' || 'clang++' }}
+      CC: ${{ matrix.compiler == 'gcc' && 'gcc-14' || 'clang' }}
+      CXX: ${{ matrix.compiler == 'gcc' && 'g++-14' || 'clang++' }}
       CCACHE_DIR: ${{ github.workspace }}/.ccache
       CCACHE_MAXSIZE: 200M
     strategy:
@@ -43,6 +43,9 @@ jobs:
         name: Load CI env
         shell: bash
         run: cat .github/ci.env >> "$GITHUB_ENV"
+      - name: Install GCC 14
+        if: runner.os == 'Linux' && matrix.compiler == 'gcc'
+        run: sudo apt-get update && sudo apt-get install -y gcc-14 g++-14
       - uses: conan-io/setup-conan@v1
         with:
           version: ${{ env.CONAN_VERSION }}
@@ -101,18 +104,19 @@ jobs:
     name: coverage / ubuntu-latest / gcc
     runs-on: ubuntu-latest
     env:
-      CC: gcc
-      CXX: g++
+      CC: gcc-14
+      CXX: g++-14
       CCACHE_DIR: ${{ github.workspace }}/.ccache
       CCACHE_MAXSIZE: 200M
+      GCOV_EXECUTABLE: gcov-14
     steps:
       - uses: actions/checkout@v7
       - *load-ci-env
+      - run: sudo apt-get update && sudo apt-get install -y ccache mold gcc-14 g++-14
       - uses: conan-io/setup-conan@v1
         with:
           version: ${{ env.CONAN_VERSION }}
           cache_packages: true
-      - run: sudo apt-get update && sudo apt-get install -y ccache mold
       - uses: actions/cache@v6
         with:
           path: .ccache
@@ -129,6 +133,9 @@ jobs:
 
   lint:
     runs-on: ubuntu-latest
+    env:
+      CC: clang
+      CXX: clang++
     steps:
       - uses: actions/checkout@v7
       - *load-ci-env

.github/workflows/codeql.yml

@@ -19,6 +19,9 @@ jobs:
   analyze:
     name: codeql / ubuntu-latest / cpp
     runs-on: ubuntu-latest
+    env:
+      CC: gcc-14
+      CXX: g++-14
     permissions:
       actions: read
       contents: read
@@ -29,6 +32,7 @@ jobs:
       # Tool pins live in .github/ci.env, shared across workflows.
       - name: Load CI env
         run: cat .github/ci.env >> "$GITHUB_ENV"
+      - run: sudo apt-get update && sudo apt-get install -y gcc-14 g++-14
       - uses: github/codeql-action/init@v4
         with:
           languages: c-cpp

.github/workflows/template.yml

@@ -22,13 +22,14 @@ jobs:
     name: rename / ubuntu-latest / gcc
     runs-on: ubuntu-latest
     env:
-      CC: gcc
-      CXX: g++
+      CC: gcc-14
+      CXX: g++-14
     steps:
       - uses: actions/checkout@v7
       # Tool pins live in .github/ci.env, shared across workflows
       - name: Load CI env
         run: cat .github/ci.env >> "$GITHUB_ENV"
+      - run: sudo apt-get update && sudo apt-get install -y gcc-14 g++-14
       - uses: conan-io/setup-conan@v1
         with:
           version: ${{ env.CONAN_VERSION }}

CMakeLists.txt

@@ -13,6 +13,7 @@ project(
 include(CTest)
 
 set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_CXX_SCAN_FOR_MODULES OFF)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(CMAKE_COLOR_DIAGNOSTICS
     ON

README.md

@@ -86,9 +86,9 @@ stable across toolchain changes.
 - [mold](https://github.com/rui314/mold) or [LLD](https://lld.llvm.org/) (optional, Linux only; used
   automatically to link first-party targets when on PATH, with mold preferred)
 - [Doxygen](https://www.doxygen.nl) (optional; required only for `make docs`)
-- A compiler and standard library with working C++23 support
-  - [GCC](https://gcc.gnu.org/) 13+
-  - [LLVM Clang](https://llvm.org/) 17+
+- A compiler and standard library with C++23 `std::ranges::to` support
+  - [GCC](https://gcc.gnu.org/) 14+
+  - [LLVM Clang](https://llvm.org/) 17+ with libc++ 17+ or libstdc++ 14+
   - [Apple Clang](https://developer.apple.com/xcode/) 17+ recommended
   - [MSVC](https://visualstudio.microsoft.com/) 2022 (17.10+) on Windows
 

src/main.cpp

@@ -31,7 +31,7 @@ void run()
 // NOLINTNEXTLINE(bugprone-exception-escape)
 int main(int argc, char* argv[])
 {
-    CLI::App app{"C++23 project template demo"};
+    CLI::App app{"C++23 project template"};
     app.set_version_flag("--version", std::string{cpp_boilerplate::version});
 
     try {

src/split.cpp

@@ -1,14 +1,18 @@
 #include <cpp_boilerplate/split.hpp>
 
+#include <ranges>
 #include <string_view>
 #include <vector>
 
+#if !defined(__cpp_lib_ranges_to_container) || __cpp_lib_ranges_to_container < 202202L
+#error "cpp-boilerplate requires C++23 std::ranges::to support"
+#endif
+
 namespace cpp_boilerplate {
 
 std::vector<std::string_view> split_views_vec(std::string_view record, char delimiter)
 {
-    auto view = split_views(record, delimiter);
-    return {view.begin(), view.end()};
+    return std::ranges::to<std::vector>(split_views(record, delimiter));
 }
 
 } // namespace cpp_boilerplate