placement.cc

#include <iostream>

int* foo()
{
  int a;
  return new (&a)int(5);
}

int* bar()
{
  return new int(5);
}

int main()
{
  int *b = foo();
  int *c = bar();
  std::cout<<"*b="<<*b<<" *c="<<*c<<std::endl;
  return 0;
}