1 # include <iostream> 2 # include <cstdlib> 3 using namespace std; 4  5 int main() 6 { 7     int *p; 8     if((p = new int(5)) == 0) 9     {10         cout<<"can‘t allocate more memory, terminating.."<<endl;11         exit(1);12     }13     14     cout<<"Before deleting:"<<endl;15     cout<<"p = "<<p<<endl;16     cout<<"*p = "<<*p<<endl<<endl;17     18     delete p;19     20     cout<<"After deleting:"<<endl;21     cout<<"p = "<<p<<endl;22     cout<<"*p = "<<*p<<endl;23     24     return 0;25 }