Why can I not call my class's constructor from an instance of that class in C++?

Question

When can an object of a class call the destructor of that class, as if it\'s a regular function? Why can\'t it call the constructor of the same class, as one of its regular

Answer 1

you can invoke the constructor of an instance's class using typeof:

class c
{
public:
   void add() ;
   c();
   ~c() ;
};

void main()
{
 c objC  ;
 objC.add() ;
 objC.~c() ; // this line compiles (but is a bad idea)
 typeof objC otherObjC;  // so does this.
}

This does not affect the value of the instance objC, but creates a new instance otherObjC using objC's class constructor.

Note: this may do something you don't expect if the static type is a baseclass of the dynamic type of the instance you have.