boost_ptree_pointer_test.cxx

#include <cassert>
#include <boost/property_tree/ptree.hpp>

int main()
{
  using namespace boost::property_tree;
  
  ptree pt;
  
  int x = 123;
  class Y { } y;
    
  pt.put("x.ptr", &x);
  pt.put("y.ptr", &y);
  
  auto px = static_cast<decltype(x)*>(pt.get<void*>("x.ptr"));
  auto py = static_cast<decltype(y)*>(pt.get<void*>("y.ptr"));
  
  std::cout
    << px << " " << typeid(px).name() << "\n"
    << &x << " " << typeid(&x).name() << "\n"
    << py << " " << typeid(py).name() << "\n"
    << &y << " " << typeid(&y).name() << "\n"
    ;
  
  assert(px == &x);
  assert(py == &y);
}

result.txt

0x7fffd9d47604 Pi
0x7fffd9d47604 Pi
0x7fffd9d47600 PZ4mainE1Y
0x7fffd9d47600 PZ4mainE1Y