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// { dg-do run  }

// Origin: Mark Mitchell 

#include 

struct S {

  ~S ();

};

bool flag;

S* s1;

S* s2;

void* operator new (size_t s)

{

  return malloc (s);

}

void operator delete (void* p)

{

  if (flag && p != s2)

    abort ();

}

S::~S () {

  if (this != s2)

    abort ();

  s1 = 0;

}

int main () {

  s2 = new S;

  s1 = s2;

  // Turn on the check in `operator delete'.

  flag = true;

  delete s1;

  // Turn it off again so that normal shutdown code works.

  flag = false;

}