template <class T> struct is_object;

// C++ program to illustrate
// std::is_object template
  
#include <iostream>
#include <type_traits>
using namespace std;
  
// main program
int main()
{
    class gfg {
    };
  
    cout << boolalpha;
    cout << "is_object:" << endl;
    cout << "sam: " << is_object<gfg>::value << '\n';
    cout << "sam&: " << is_object<gfg&>::value << '\n';
    cout << "int: " << is_object<int>::value << '\n';
    cout << "int&: " << is_object<int&>::value;
    return 0;
}

is_object:
sam: true
sam&: false
int: true
int&: false

// C++ program to illustrate
// std::is_object template
  
#include <iostream>
#include <type_traits>
using namespace std;
  
// main program
int main()
{
    class geeks {
    };
  
    cout << boolalpha;
    cout << "is_object:" << endl;
    cout << "float: " << is_object<float>::value << '\n';
    cout << "float&: " << is_object<float&>::value << '\n';
    cout << "raj: " << is_object<geeks>::value << '\n';
    cout << "raj&: " << is_object<geeks&>::value << '\n';
    cout << "char: " << is_object<char>::value << '\n';
    cout << "char&: " << is_object<char&>::value;
  
    return 0;
}

is_object:
float: true
float&: false
raj: true
raj&: false
char: true
char&: false