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On Fri, Nov 25, 2016 at 1:42 AM, Daniel Berlin <dberlin at dberlin.org> wrote: > What is the purpose of the union there? > The purpose of the union is to increase portability by ensuring that the placement new is not being performed on insufficiently sized or aligned memory. > I ask because pretty much no compiler will respecting the unioning without > visible accesses in all

...mentioned, not with placement new but with a call to a function taking int * and float *, and passing the same address (call site was union). — Mehdi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20161125/2592a7e6/attachment.html>