Clang fsanitize Notes

• -fsanitize=xxx should be added to the command line for both compiling and linking
• clang can be used to compile cpp files. However, clang++ must be used to link for cpp programs.

clang -fsanitize=undefined -c -o test.o test.cpp
clang++ -fsanitize=undefined -o test test.o

Reference

Clang 7 documentation - UndefinedBehaviorSanitizer