As far as I know, many experienced C++ programmers have a list of warnings they use for their projects and it varies by industry since different compilers will have different flags. When I was working on bigger C++ projects, one of the senior programmers would configure the warnings for everyone.

An easy start is to use `-Wall -Wextra -Wpedantic` for gcc and clang compilers. I would now add `-Wdeprecated-copy-dtor` to the list but I only learned about it writing this article.