encryption.cpp

《c＋＋大学教程实验指导书》源码

// Chapter 5 of C++ How to Program
// Exercise2.cpp

#include <iostream>

using std::cout;
using std::endl;

/* Write the prototype for function encrypt */
/* Write the prototype for function decrypt */

int main()
{
   // create a string to encrypt
   char string[] = "this is a secret!";

   cout << "Original string is: " << string << endl; 

   encrypt( string );
   cout << "Encrypted string is: " << string << endl;

   decrypt( string );
   cout << "Decrypted string is: " << string << endl;

   return 0;

} // end main

// encrypt data
void encrypt( char e[] )
{
   /* Write implementation for function encrypt */

} // end function encrypt

// decrypt data
void decrypt( char *ePtr )
{
   /* Write implementation for function decrypt */

} // end function decrypt


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 * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
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