Try / catch always creates copy of thrown object

trycatch.cpp

#include <cstdint>
#include <functional>
#include <iostream>
#include <map>
#include <string>


class Humanizator
{
public:
  Humanizator () : next_ (0), ps_ () {}
  virtual ~Humanizator () {}

  int name (const void *p)
  {
    if (ps_.find (p) == ps_.end ())
      ps_[p] = next_++;
    return ps_[p];
  }

private:
  int next_;
  std::map<const void *, int> ps_;
};


Humanizator g_humanizator;
std::function<int (const void*)> name = std::bind (&Humanizator::name, &g_humanizator, std::placeholders::_1);


class A
{
public:
  A () {std::cout << "NEW: " << name (this) << std::endl;}
  A (const A& other) {std::cout << "COPY: " << name (&other) << " -> " << name (this) << std::endl;}
  virtual ~A () {std::cout << "DELETE: " << name (this) << std::endl;}
};


int main()
{
  using namespace std;

  // Try / catch always creates a copy of the object by standard, right?
  try
    {
      A a;
      cout << "TRY: " << name (&a) << endl;
      throw a;
    }
  catch (A& ex)
    {
      cout << "CATCH: " << name (&ex) << endl;
    }
  cout << "END" << endl;

  return 0;
}