源代码来自C++ Primer Plus 第六版，第四章​

// delete.cpp -- using the delete operator
#include <iostream>
#include <cstring>      // or string.h
using namespace std;
char * getname(void);   // function prototype
int main()
{
  char * name;        // create pointer but no storage

  name = getname();   // assign address of string to name
  cout << name << " at " << (int *) name << "\n";
  delete [] name;     // memory freed

  name = getname();   // reuse freed memory
  cout << name << " at " << (int *) name << "\n";
  delete [] name;     // memory freed again
  return 0;
}

char * getname()        // return pointer to new string
{
  char temp[80];      // temporary storage
  cout << "Enter last name: ";
  cin >> temp;
  char * pn = new char[strlen(temp) + 1];
  strcpy(pn, temp);   // copy string into smaller space

  return pn;          // temp lost when function ends
}