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// PR c++/52796 // { dg-do run { target c++11 } } inline void *operator new(__SIZE_TYPE__ s, void *p) { return p; } struct A { int i; template<class... Ts> A(Ts&&... ts): i(ts...) { } }; static union { unsigned char c[sizeof(A)]; int i; }; int main() { i = 0xdeadbeef; new(c) A; if (i != 0) __builtin_abort(); }