#include <iostream>
using namespace std ;


class A1
{
};



//--------------------------------------------------------

int main()
{
  int x1 = 27;             // x is an int
  const int cx = x1;       // cx is a const int
  const int& rx = x1;
  int& lvalueRef = x1 ;

  int* ptr1 = &x1 ;
  const int* ptrc1 = &x1 ;

  decltype( x1 ) x2 =10 ;
  cout <<  typeid( x2 ).name() << endl ;
  //typeid does not give information about
  //constant qualifiers

  decltype( cx ) cx1 =10 ;
  //cx1 is of type const int
  cout <<  typeid( cx1 ).name() << endl ;

  decltype( rx ) rx1 =10 ;
  // rx1 is of type const int&  if a reference is constant then
  // we can assign a rvalue to it
  cout <<  typeid( rx1 ).name() << endl ;

  decltype(lvalueRef) lvalueRef1 = x1 ;
  //need to initialize it here as lvalueRef1 is of type int&

  A1 Obj1A ;
  decltype(Obj1A) Obj2A ;
  //Obj2A is of type A1

  auto rx2 = rx1 ;
  //auto does not retain the const
  //rx2 is of type int
  decltype( auto )  rx3 = rx1 ;
  //The above syntax is stating that
  //rx3 is of type const int&


 return 0 ;
}


//--------------------------------------------------------