Strict aliasing rules are hard -- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69776 …
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@BRIAN_____ clang compiled the test case correctly without it:-) And it took me some time to find this solution. -
@BRIAN_____ Roughly speaking, volatile breaks the ties p<->pi and p<->pd and, hence, pi<->pd. Or so I think.
End of conversation
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