hi guys and gals, here i've got a problem and ask for your kindly help.
why can't we delete an array of type t2 by deleting a 'pointer of type t1(p23)' that is actually pointing to 'new t2[2]', whereas we do can delete an object of type t2 by deleting a 'pointer of type t1(p22)'Code:#include <cstdlib>
#include <cmath>
#include <iosfwd>
#include <iostream>
#include <iterator>
#include <vector>
#include <cstring>
#include <iostream>
#include <stdexcept>
#include <string>
#include <sstream>
using namespace std;
class t1 {
public:
t1() { cout << "t1: " << this << endl; }
virtual ~t1() { cout << "~t1: " << this << endl; }
int a, b, c;
char d, f, g;
};
class t2 : public t1 {
public:
t2() { cout << "t2: " << this << endl; }
~t2() { cout << "~t2: " << this << endl; }
int i1, i2, i3;
};
int main()
{
t1* p11 = new t1;
delete p11; // OK
t1* p12 = new t1[2];
delete [] p12; // OK
t2* p21 = new t2[2];
delete [] p21; // OK
t1* p22 = new t2;
delete p22; // OK
t1* p23 = new t2[2];
delete [] p23; // Core Dump, why?
}
