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#include <iostream>
 
class Object
{
	public:
	    Object(void){ static unsigned counter = 0; number = counter++; }
	    ~Object(void){ std::cout << number << " has been destroyed!" << std::endl; }
 
	private:
		unsigned number;
};
 
int main()
{
	Object *obj = new Object[100];
	delete[50] obj;
	return 0;
}

prog.cpp: In function ‘int main()’:
prog.cpp:16:9: error: expected ‘]’ before numeric constant
  delete[50] obj;
         ^
prog.cpp:16:9: error: type ‘int’ argument given to ‘delete’, expected pointer
prog.cpp:16:11: error: expected ‘;’ before ‘]’ token
  delete[50] obj;
           ^
prog.cpp:15:10: warning: unused variable ‘obj’ [-Wunused-variable]
  Object *obj = new Object[100];
          ^

Standard output is empty