How to determine when a C++11 move is synthesized?

Jeffrey Walton
Thu Jan 7 04:17:00 GMT 2016

> Second, we got a warning under Cygwin x86_64, and we really did not
> understand it. The warning is/was:
>     Warning: defaulted move assignment operator of X will move assign
>     virtual base class Y multiple times
> It seems to me the diagnostic is telling me I should provide it. Also
> see
My bad... That's a Clang warning on OX S under Xcode 7, IIRC. But I
use GCC for my heavy lifting, so I was trying to get GCC to tell me
where the compiler is generating those functions.


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