nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

nested namespace definition is a C++17 extension; define each namespace separately [-Wc++17-extensions]

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The macos-latest label will migrate to macOS 15 beginning August 4, 2025. For more information see https://github.com/actions/runner-images/issues/12520