// ptr16.cpp 		By: Aiman Hanna -  ©1993-2006 Aiman Hanna

// Simple program that gets strings from the user and displays them back.
// Notice that the program crashed at some point. Why?

// Key Points: 	1) Memory allocation. 


#include <iostream.h>
#include <string.h>

int main()
{
char str1[10], 
str2[6], ans = 'y';		// Declare 2 strings
do
  {
  cout << " Enter your first string. It must be less than 10 characters: ";
  cin >> str1;
  cout << " Now enter the second one. It must be less than 6 characters: ";
  cin >> str2;

  cout << " \n The first sting entered was :" << str1 << "\n";
  cout << " and the second one is: " << str2 << "\n";

  cout << " Do you want to continue? Enter 'y' if so; any other key otherwise: " ;
  cin >> ans;
  } while ( ans == 'y' );

return 0;
}




/*

// The following is the result of compilation
//Compilation successful

// We executed the program using two different machines. 
// Here are the results from both of them
  
//================================================================
// The following is the result of running the program on machine 1
//================================================================
Enter your first string. It must be less than 10 characters: this is a test
 Now enter the second one. It must be less than 6 characters:
 The first sting entered was :this
 and the second one is: is
 Do you want to continue? Enter 'y' if so; any other key otherwise:                
 	// The program terminated at this point, since the character entered was not 'y'

 // Run again. Note that spaces, tabs and new line characters are ignored by ">>"
 
 Enter your first string. It must be less than 10 characters: this is y
 Now enter the second one. It must be less than 6 characters:
 The first sting entered was :this
 and the second one is: is
 Do you want to continue? Enter 'y' if so; any other key otherwise:  Enter your first string. It must be less than 10 characters: he
llo again
 Now enter the second one. It must be less than 6 characters:
 The first sting entered was :hello
 and the second one is: again
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: hello third time
 Now enter the second one. It must be less than 6 characters:
 The first sting entered was :hello
 and the second one is: third
	// The program terminated at this point, since the character entered was not 'y'


// Run again. 
 Enter your first string. It must be less than 10 characters: this-is-9
 Now enter the second one. It must be less than 6 characters: hello

 The first sting entered was :this-is-9   		 //  This is actually 10, the return key is part of the string
 and the second one is: hello
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
  Enter your first string. It must be less than 10 characters: this-is-11
 Now enter the second one. It must be less than 6 characters: How?!

 The first sting entered was :this-is-11How?!
 and the second one is: How?!
 Do you want to continue? Enter 'y' if so; any other key otherwise: n



 // Run the program again. Watch how strings behave!!

 Enter your first string. It must be less than 10 characters: it-is-8
 Now enter the second one. It must be less than 6 characters: this-is-more-than-6

 The first sting entered was :it-is-8
 and the second one is: this-is-more-than-6
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: BY_LUCK!
 Now enter the second one. It must be less than 6 characters: will-this-time-the-test-pass-too?

 The first sting entered was :BY_LUCK!
 and the second one is: will-this-time-the-test-p{°Öz(				   // This is what we call " garbage "
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: LUCK_#_2
 Now enter the second one. It must be less than 6 characters: they-say-Can-not-depend-on-luck-you-may-crash-if-hit-illegal-memory_!!!!!

Memory fault(coredump)								   // Program crashed

*/



//================================================================
// The following is the result of running the program on machine 2
//================================================================
/*
 Enter your first string. It must be less than 10 characters: this-is-9
 Now enter the second one. It must be less than 6 characters: hello

 The first sting entered was :this-is-9
 and the second one is: hello
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: this-is-11
 Now enter the second one. It must be less than 6 characters: How?!

 The first sting entered was :this-is-11
 and the second one is: How?!
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: it-is-8
 Now enter the second one. It must be less than 6 characters: this-is-more-than-6

 The first sting entered was :more-than-6
 and the second one is: this-is-more-than-6
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: BY_LUCK!
 Now enter the second one. It must be less than 6 characters: will-this-time-the-test-pass-too?

 The first sting entered was :s-time-the-test-pass-too?
 and the second one is: will-this-time-the-test-pass-too?
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: LUCK_#_2
 Now enter the second one. It must be less than 6 characters: they-say-Can-not-depend-on-luck-you-may-crash-if-hit-illegal-memory_!!!!!

 The first sting entered was :-Can-not-depend-on-luck-you-may-crash-if-hit-illegal-memory_!!!!!
 and the second one is: they-say-Can-not-depend-on-luck-you-may-crash-if-hit-illegal-memory_!!!!!
 Do you want to continue? Enter 'y' if so; any other key otherwise: y
 Enter your first string. It must be less than 10 characters: LUCK_#_3
 Now enter the second one. It must be less than 6 characters: they-say-Can-not-depend-on-luck-you-may-crash-if-hit-illegal-memory_!!!!!Here-is-a-terribly-long-string-surely-mofre-than-6-characters!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Press any key to continue (Notice that the program did not crash but it did NOT terminate normally since no response was given by the program)


*/