// compile & generate coverage data using:
-// clang++ -g -o test-linux_x86_64 -fsanitize=address -fsanitize-coverage=edge *.cpp
+// clang++ -g -o test-linux_x86_64 -fsanitize=address -fsanitize-coverage=bb test.cpp foo.cpp
// ASAN_OPTIONS="coverage=1" ./test-linux_x86_64 && mv test-linux_x86_64.*.sancov test-linux_x86_64.sancov
// ASAN_OPTIONS="coverage=1" ./test-linux_x86_64 1 && mv test-linux_x86_64.*.sancov test-linux_x86_64-1.sancov