/*
   teststring5.cpp
   CIS 150
   David Klick
   7/3/08
   
   This program demonstrates some common string
   class functions/methods.
*/

#include <iostream>
#include <string>
using std::cin;
using std::cout;
using std::string;

void cont();

int main() {
   int i;
   string s1, s2, s3;
   
   // get two names from user
   cout << "Enter a name: ";
   cin >> s1;
   cout << "Enter another name: ";
   cin >> s2;
   
   // display what was read in
   cout << "You entered: " << s1 << ", " << s2 << '\n';
   
   // compare the names
   if (s1 > s2) cout << s1 << " is greater than " << s2 << '\n';
   else if (s1 < s2) cout << s1 << " is less than " << s2 << '\n';
   else cout << "You entered the same name twice\n";
   
   // display the lengths
   cout << "Length of first string is " << s1.length() << '\n';
   cout << "Length of second string is " << s2.size() << '\n';

   // display each character of s2
   for (i=0; i<s2.size(); i++) cout << s2.at(i) << ' ';
   cout << '\n';
   
   // swap the strings and redisplay
   s1.swap(s2);
   cout << "You entered: " << s1 << ", " << s2 << '\n';
      
   // clear the first string and see if either is empty
   s1.clear();
   if (s1.empty()) cout << "First string is now empty\n";
   if (s2.empty()) cout << "Second string is now empty\n";
   
   // reset strings and build my name up from pieces
   s1 = "Klick";
   s2 = "G.";
   s3 = "David";
   
   s3.append(" ");
   s3.append(s2);
   s3.append(" ");
   s3.append(s1);
   cout << "My name is " << s3 << '\n';  
   
   cont();
   return 0;
}

/*
   void cont();
   
   Arguments: none
   
   Returns: nothing
   
   Clears input buffer and pauses waiting for user 
   to press Enter.
*/
void cont() {
   if (cin.rdbuf()->sungetc() != -1 && cin.get() != '\n') cin.ignore(80,'\n');
   cout << "Press enter to continue...";
   cin.get();
}

/*
   Sample output:
   
   Enter a name: Theodore
   Enter another name: Sandra
   You entered: Theodore, Sandra
   Theodore is greater than Sandra
   Length of first string is 8
   Length of second string is 6
   S a n d r a
   You entered: Sandra, Theodore
   First string is now empty
   My name is David G. Klick
*/