$ g++-10 -O3 -Werror -c test.cpp
test.cpp: In member function ‘void Container::bar()’:
test.cpp:32:22: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
32 | toolsSetting = PopUnsignedChar();
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
test.cpp:32:22: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
cc1plus: all warnings being treated as errors
test.cpp: In member function ‘void Container::bar()’:
test.cpp:32:22: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
32 | toolsSetting = PopUnsignedChar();
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
test.cpp:32:22: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
cc1plus: all warnings being treated as errors
