C++ comments and inline functions arrived with C99, which was 21 years ago, not C11. With C11, itself now an obsolete standard from 9 years ago, we get the _Gen

C++ comments and inline functions arrived with C99, which was 21 years ago, not C11. With C11, itself now an obsolete standard from 9 years ago, we get the _Generic keyword. Avoiding the _Generic keyword is difficult. One might try using the sizeof operator.