/* Filename:  strings.cpp

   Author:  Br. David Carlson

   Date:  June 5, 1998

   Revised:  June 26, 2000

   This program reads in a few strings from the keyboard and prints
   them on the screen.  It also copies the last string and appends
   something to the end of it, printing out the results in both cases.
*/

#include <iostream>
using namespace std;

const int MaxString = 12;

typedef char StringType[MaxString];

/* Given:  InStream     An input file stream open for reading.
           StringMax    The maximum number of characters that can be put
                        into String, including the NULL that marks the end
                        of the string.
   Task:   To read up to StringMax - 1 characters from InStream, storing
           them in String, but stopping if a newline is read or end of
           file or an error condition is reached.
   Return: String       The string just read, with a NULL appended to mark
                        the end of the string.  If a newline was read, it
                        is not stored in String.
           The number of characters read into String (not counting the NULL)    
           is returned in the function name.
*/
int MyGetLine(istream & InStream, char * String, int StringMax)
   {
   char Ch;
   int Count, Last;

   Count = 0;
   Last = StringMax - 1;
   Ch = InStream.get();

   while ((Ch != '\n') && (! InStream.fail()))
      {
      if (Count < Last)
         String[Count++] = Ch;
      Ch = InStream.get();
      }

   String[Count] = NULL;
   return Count;
   }


int main(void)
   {
   StringType Message, MsgCopy;
   int Num;

   cout << "Enter a string: ";
   cin >> Message;
   // get the newline so it doesn't go into Message below
   cin.get();
   cout << Message << " was placed into the string." << endl << endl;

   cout << "Enter another string: ";
   MyGetLine(cin, Message, MaxString);
   cout << Message << " was placed into the string." << endl << endl;

   cout << "Enter another string: ";
   Num = MyGetLine(cin, Message, MaxString);
   cout << Message << " was placed into the string." << endl;
   cout << "It contains " << Num << " characters." << endl << endl;

   strcpy(MsgCopy, Message);
   cout << "Copied message contains: " << MsgCopy << endl << endl;

   strcat(MsgCopy, "END");
   cout << "Copied message with END appended: " << MsgCopy
      << endl << endl;

   return 0;
   }