rogfer01 added a comment.
In https://reviews.llvm.org/D20561#484421, @jyknight wrote:
> This seems to trigger even for the implicitly generated copier of a packed
> struct. E.g.
>
> #include <sys/epoll.h>
>
> void copyit(epoll_event&out, const epoll_event &in) {
> out = in;
> }
>
>
>
> Is that as intended?
No, it wasn't. It seems to happen as well for the implicit copy constructor as
well.
#include <sys/epoll.h>
void copyit2(epoll_event foo);
void copyit(epoll_event &out) { copyit2(out); }
clang++ -c test.cc
In file included from test.cc:1:
/usr/include/x86_64-linux-gnu/sys/epoll.h:87:8: error: binding reference to
packed member 'data' of class or structure 'epoll_event'
struct epoll_event
^~~~~~~~~~~
test.cc:4:41: note: implicit copy constructor for 'epoll_event' first
required here
void copyit(epoll_event &out) { copyit2(out); }
^
1 error generated.
Repository:
rL LLVM
https://reviews.llvm.org/D20561
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