ECE 263/264Lab 8

Due: Friday Oct 31Warm up exerciseswe will discuss the following

Pointer s

Passing pointers to functions

Returning pointers from functions

Arithmetic

Introduction to strings

Run this code below:

#include int main()

{

int a[3] = {10, 12, 10};

printf(" a is %d\n", a);

printf(" a+1 is %d\n",a+1);

printf(" a+2 is %d\n",a+2);

printf(" *a is %d\n",*a);

printf(" *(a+1) is %d\n", *(a+1));

printf(" *(a+2) is %d\n", *(a+2));

printf(" address of a[0] is %d\n", &a[0]);

printf(" address of a[1] is %d\n", &a[1]);

printf(" address of a[2] is %d\n", &a[2]);

return 0;

}

Given the following declarations:

char AR[10]; short WW[13]; double M[100]; char *cp; short *sp; short *sp2; double *dp;

Suppose:

AR is located at address 500 WW is locates at address 2100 M is located at address 3340

Determine the following:

a) dp after executing dp = &M[5];

b) cp after executing cp = &AR[4];

c) dp after executing dp = M+9;

d) Suppose we execute sp=WW; and then we execute sp = sp+5. Now determine sp

e) Determine sp sp2

After executing sp=&WW[7]; and sp2=&WW[2]Consider the following declarations:

short T[3] = {6, 17, 3};

short *sp =T;

short x;

a) x = 10 - *sp+1;

b) x = 10 - *(sp+1)

c) x = 10 - *(T+2)

d) X = 10 - *(&T[1])

d) What is *(sp+3)

Lab 8 (this is to be turned in)

Palindrome is a string that is the same as backwards or forwards

otto

ababa

noon

ababbbbaba

In this lab we will work with strings (so we will be using character arrays).

In this lab we will define a char array:

1. Write a function computeLength and call this functionin main to ompute the length of the string str2. if the string str is of length 0 the program will terminate

3. Call this function with str1 in main and output your result

Now write a function isPalindrome(str) that returns a 1 if str is a palindrome and 0 otherwise. To get full credit use isReversePrefix in your functionint computeLength(char *str);

int isPalindrome (char *str);