Or if you're using clang you can just -Weverything Which does actually turn on all warnings (so you'll probably want to add things like -Wno-unused -Wno-pad

Or if you're using clang you can just -Weverything Which does actually turn on all warnings (so you'll probably want to add things like -Wno-unused -Wno-padded). Under gcc, '-Wall -Wextra -Wpedantic' does not enable all warnings. There are still more than 40 flags you have to give if you really want all of them. The reason why boggles my mind to this day.