[Issue 18449] dmd allows to compile `extern(C++) class` even though it should be extern(C++) struct; should give error

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18449

--- Comment #2 from Timothee Cour <timothee.cour2 at gmail.com> ---
reopening and changed title to:

dmd allows to compile `extern(C++) class` even though it should be extern(C++)
struct; should give error

is that fixable or fundamentally hard to detect when key method is defined ?

--