I can't speak for CLion or the C++ plugin but in Java in IntelliJ you type: switch (enumVar) hit alt-enter and it gives you the option of filling in the missi

I can't speak for CLion or the C++ plugin but in Java in IntelliJ you type: switch (enumVar) hit alt-enter and it gives you the option of filling in the missing branches. This even applies to partial switch statements missing some of the cases.