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#include <iostream>
 
using namespace std;
 
struct A
{
  int i;
  static int c;
  A () : i(c++) { cout<<"A() : i("<<i<<")\n"; }
};
int A::c;
 
int main ()
{
  void *p = new A[3];  // good behavior for A* p = new A[3];
  cout<<"p->i = "<<((A*)p)->i<<endl;
  p=sizeof(A)+(char*)p;
  cout<<"p->i = "<<((A*)p)->i<<endl;
  p=sizeof(A)+(char*)p;
  cout<<"p->i = "<<((A*)p)->i<<endl;
}

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• # 1:   hide show   clone   input   711 days 20 hours ago    Success

  result: Success     time: 0s    memory: 2856 kB     returned value: 0

  input: no
  output:

  A() : i(0)
  A() : i(1)
  A() : i(2)
  p->i = 0
  p->i = 1
  p->i = 2