Question 1 (18 points total)
Part A (5 points) A C program is to be compiled using the same command line options as were used for assignment 1. The C source code file is new.c, and new is to be the file name of the resulting executable. Write the Linux shell command to do the compilation.




Part B (5 points) In a single sentence identify the difference between the game and game2 programs.



Part C (8 points) Name the 4 segments provided to and available to be used by every executable program.

Question 2 (12 points total, 4 points each part) This C program is compiled on one of the CS department's instructional Linux machines:

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[]) {
   int i, intvalue;

   if ( argc != 4 ) {
      printf("usage:  argvtest int1 int2 int3\n");
      exit(0);
   }

   for ( i = 1; i < argc; i++ ) {
      intvalue = atoi(argv[i]);
      printf("%d\n", intvalue );
   }
   return 0;
}

    argvtest  12   -8   -354

    argvtest  6789 abc 26

    argvtest  13

Question 3 (20 points)
Consider this C program.

#include <stdio.h>
#define ARSIZE 5

int main(int argc, char *argv[]) {
   int arrA[ARSIZE];
   int * arrB[ARSIZE];
   int i;

   for ( i = 0; i < ARSIZE; i++ ) {
      *(arrB + i) = arrA + i;
   }

   for ( i = 0; i < ARSIZE; i++ ) {
      *(arrB[i]) = i * 2;
   }
   return 0;
}

         -------------------------------
         |     |     |     |     |     |   arrA
         |     |     |     |     |     |
         -------------------------------


         -------------------------------
         |     |     |     |     |     |   arrB
         |     |     |     |     |     |
         -------------------------------

Question 4 (10 points)
Write a fragment of C code with a declaration and one statement that contains a buffer overflow error.

Question 5 (20 points total, 2 points each)
Circle each true statement.

• a[i] is equivalent to *(a + i)
  
  
• &(a[i]) is equivalent to a + i
  
  
• In this declaration, the type of x is pointer to an int, and the type of y is int.
  int * x, y;
  
  
• For the declaration
  int * x, y;
  the type of x is pointer to an int, and the type of y is pointer to an int.
  
  
• In code, ptr->next is the same as (*ptr).next
  
  
• In code, ptr->next is the same as ptr.next
  
  
• This C code fragment, when placed within main(), will result in a compiler warning or error.

     int array[20];
     array[100] = -1;
  

• This C code fragment, when placed within main(), will result in a compiler warning or error.

     int array[6];
     int index = 3;
     array[index - 4] = index;
  

• This C code fragment, when placed within main(), will result in a compiler warning or error.

     typedef struct node {
        int value;
        struct node *next;
     } Node;
     Node *ptr;
     ptr = NULL;
     ptr->intvalue = 300;
  

  
  
  
  
  
• In the following C code fragment, the value of variable x does not change, because C implements call by value parameters.

     int x;
     x = 20;
     doubleit(x);
     .
     .
     void doubleit(int y) {
        y = y * 2;
     }
  

Question 6 (20 points total)
A C program contains this definition of a Node structure that is used to create a singly linked list.

typedef struct node {
   int  value;
   struct node *next;
} Node;

   void printNodes( Node *head ) {










   }