rjmccall wrote: Ah right, I'd forgotten that some ABIs use that array trick to get it to pass by reference, and you're right that that makes it ill-formed to simply assign around.
I like your idea of specifically making it UB to copy with `memcpy` etc and just advising that people use va_copy. https://github.com/llvm/llvm-project/pull/98146 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
