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// PR c++/100370 // { dg-do compile { target c++11 } } using size_t = decltype(sizeof(1)); inline void *operator new (size_t s, void *p) { return p; } int main() { struct s1 { int iv[4]; }; struct s2 { union { char* cp; int* ip; }; }; s2 b; b.ip=new int[8]; new (b.ip+4) s1; // { dg-bogus "-Wplacement-new" } }