https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127722
--- Comment #8 from Keith Thompson <Keith.S.Thompson at gmail dot com> ---
"GCC does not warn about adjacent case labels with no statement between them,
so that the fallthrough attribute is not needed for common patterns like:"
...
I like it.
To be pedantic, there can also be a declaration between two case
labels, or even an ordinary label:
case 0:
case_1:
case 2:
defau1t:
But perhaps this is the kind of errant pedantry which we should
not put up with.
