enum type check in C/gcc

Question

See the simple example below. When a function returning one enum is assigned to a variable of a different enum I don\'t get any warning even with <

Answer 1

Probably most of us understand the underlying causes ("the spec says it must work"), but we also agree that this is a cause of a lot of programming errors in "C" land and that the struct wrapping workaround is gross. Ignoring add-on checkers such as lint, here's what we have:

gcc (4.9): No warning available.
microsoft cl (18.0): No warning available.
clang (3.5): YES -Wenum-conversion