Pointers Questions and Answers

main ( ) { char *a [ ]  = {"jaya", "mahe", "chandra", "buchi"}; printf ("%d", sizeof (a) / sozeof (char *)); }

main ( ) { char *p = "abc"; char *q = "abc123"; while (*p++=*q++) { printf ("%c%c, *p, *q); } } What will be the output of the above ?

What is the result of the expression for the following declaration ? int A [ ] = {1, 2, 3, 4, 5 }; *A + 1 - *A +3

Which are valid ? (i)Pointers can be added; (ii)Pointers can be subtracted. (iii)Integers can be added to pointers.

x = malloc (y). Which off the following statements is correct ?

p and q are pointers to the same type of data items. Which of these are valid ? (i) *(p+q) (ii) *(P-q) (iii) *p-*q

int *i; float *f; char *c; Which are the valid castings ? (i) (int *) &c (ii) (float *) &c (iii) (char *) &i                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

int a = 'a', d = 'd'; char *b = "b", **c = "cr"; main ( ) { mixup (a, b, &c); } mixup (int p1, char *p2, chr **p3) { int *temp; ... } What is the value of a and b in mixup at the beginning ?

main ( ) { char s [ ] = "S.T.S.", *A; print (s); { print (char *p) { while (*p ! = '\0') { if (*p ! = '' . ') printf ("%c", *p); p++; } } What is the output?

Find the output void main() { int a[5]={2, 3, 4, 5}, *c=a; (*c) --; printf ("d", *c); }