Many people have their compilers set to enforce these things, and many of us go a step further and make our compiler warnings into errors so it’s impossible to

Many people have their compilers set to enforce these things, and many of us go a step further and make our compiler warnings into errors so it’s impossible to build a program with these errors. That’s very commonplace, and C++ does it just fine. Missing cases in enums and at least 100 other very common matters can be checked at compile time in C++, the only difference is that it’s not the default as it is in some other languages.