compile
command_line: C:\mingw64\bin\g++.exe -ID:/a/btck/btck/include -isystem C:/vcpkg/installed/x64-mingw-static/include -O2 -std=gnu++20 -MD -MT test/cpp/CMakeFiles/btck.test.cpp.dir/transaction.cpp.obj -MF test\cpp\CMakeFiles\btck.test.cpp.dir\transaction.cpp.obj.d -o test/cpp/CMakeFiles/btck.test.cpp.dir/transaction.cpp.obj -c D:/a/btck/btck/test/cpp/transaction.cpp
working_directory: "D:/a/btck/btck/build"
Target: btck.test.cpp
Target Type: EXECUTABLE
Source: D:/a/btck/btck/test/cpp/transaction.cpp
Language: C++
Config: Release
stderr:
In file included from D:/a/btck/btck/test/cpp/transaction.cpp:8:
D:/a/btck/btck/include/btck/btck.hpp:488:7: warning: 'btck::Chain' has a field 'btck::Chain::impl_' whose type uses the anonymous namespace [-Wsubobject-linkage]
488 | class Chain : public detail::range<Chain const>
| ^~~~~