NULL pointer and void pointer in c ++

NULL pointer and void pointer in c ++
NULL Pointer nullptr previously used 0 or NULL to express NULL pointers:
The NULL macro of C/C ++ is a macro with many potential bugs. Some databases define it as an integer 0, while others define it as (void *) 0. It's okay in the C era. However, in the C ++ era, this will cause many problems.
C ++ 11 uses the nullptr keyword, which is a null pointer with more accurate expression and type security.

# Include

 
  
Using namespace std; int main (){//! Void voidObject; error. The void * pv variable of the void type cannot be declared; // you can declare the void pointer int I = 5; pv = & I; // void type pointer pointing to integer variable int * pint = static_cast

  
   
(Pv); // convert the void pointer to the int pointer cout <"* pint =" <* pint <endl; return 0 ;}