Comp 1572, Winter 2002
Pencil-and-Paper Assignment 5
Assigned Monday, February 11, 2002
Due Monday, February 18, 2002 (At the beginning of class)

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This is pencil-and-paper homework. Write your answers as neatly as possible.
If your handwriting is hard to read, please type your answers.  
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1. Given the following declaration,
   int a[] = {1,2,3,4,5};
   what are the values of the expressions below?
   (a) a - &a[3]
   (b) *(a+4)
   (c) *(a+5)

2. Explain the meaning of each of the following declarations:
   (a) char a[];
   (b) char *b;
   (c) char c[5] = "";
   (d) int d[] = {0,1,2};
   (e) int *e = d+1;
   (f) char *g[];
   (g) char *g[] = {a,b,c};
   (h) char **a;
   (i) char **a = &b;
   (j) typedef int (* C_FN)(char *, const char *);

3. Given that k is an integer array starting at location 2000, 
   kPtr is a pointer to k, and each integer is stored in 4 bytes of memory: 
   (a) What location does kPtr + 5 point to?

   Refer to the second element of k using;
   (b) array subscript notation

   (c) pointer/offset notation with the array name as the pointer

   (d) pointer subscript notation

   (e) pointer/offset notation
  
4. Consider the following function:

   void func( char * string1, const char * string2 )
   {
        int stringsize = sizeof( string1 )/sizeof( char );
        *( string1 + stringsize -1 ) = ‘\0’;
        string1 = string1 + stringsize - 2;
        for ( ; *string2 != '\0'; string1--, string2++ )
        *string1 = *string2;
   }

   Explain in detail what the function func does.
   Write a main function to test func.  
   Attach the program and its execution result.
 
5. Provide the definition for each of the following structures.
   (a) A structure called Address that contains character arrays
       streetAddress[ 25 ], city[ 20 ], state[ 3 ] and zipCode[ 6 ].
   (b) Structure Student that contains arrays firstName[ 15 ] and
       lastName[ 15 ], integer id, floating-point GPA, and 
       variable homeAddress of type struct Address from part (a).
  
6. Say that you have the following in your program:
   int i;
   int *ip;
   int **ipp;
   i = 4000;
   ip = &i;
   ipp = &ip;
   Say that i is stored at memory location 0x606EF0, ip is stored at
   memory location 0x606EF8 and ipp is stored at memory location 0x606F08.
   a)  Draw a map of the memory and fill in the values of each variable.
   b)  What is the value of each of the following (some are not even
       logically valid expressions - note which ones are not):
       i, &i, *i, &ip, ip, *ip, **ip, &*ipp, *ipp, **ipp, &&i, &ipp. 

7. Do problem 6.12 in Deitel and Deitel

8. Do problem 16.7 in Deitel and Deitel