"Thinkinginc++" 65, using delete void* may be an error

/*** book: "thinkinginc++" * Function: Use delete void* may error * Time: October 5, 2014 14:31:43* Author: cutter_point*/#include <iostream> Using namespace Std;class object{    void* data;//a void* type pointer    const int size;    const char Id;public:    Object (int sz, char c): Size (SZ), ID (c)    {        data=new char[size];        cout<< "Create a Class" <<id<< ", size =" <<size<<endl;    }    destructor, output a paragraph of the execution of the destructor, and then the destructor data array    ~object () {cout<< "destruction of this class" <<id<<endl; delete [] data;}; int main () {    object* a=new Object (+, ' a ');    Delete A;    void* b=new Object (+, ' B ');    Delete B;   The result of the display is that B does not call the destructor    //Because it does not know what type B is, then the result of the program execution is that the object memory of B is recycled, but the    class content within//class is not destructor,    return 0;}

"Thinkinginc++" 65, using delete void* may be an error