[Bug c++/61414] enum class bitfield size-checking failure

[tromey at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61414

--- Comment #1 from Tom Tromey <tromey at gcc dot gnu.org> ---
Jonathan pointed out that this is not really a bug because
an enumeration with a fixed underlying type has a different
definition of its underlying values.

However, the bug still exists if the underlying type is not fixed:

enum class K {
  V = 27
};

struct S {
  K v : 6;
};

barimba. g++ --syntax-only -pedantic -std=c++11 /tmp/q.cc
/tmp/q.cc:6:9: warning: ‘S::v’ is too small to hold all values of ‘enum class
K’ [enabled by default]
   K v : 6;
         ^