Answer / manoj ku. dalai

Explaining With the examples.........

1) const char *a="xyz" (string is constant, pointer is not)
*a='x' (error)
a="hi" (legal)

2) char* const a="xyz" (pointer is constant, String is not)
*a='x' (legal)
a="hi" (error)

3) char const *a="xz" (string is constant, pointer is not)
a*='x' (error)
a="hi" (legal)

Answer / susie

Answer :

1. 'const' applies to char * rather than 'a' ( pointer to a
constant char )

*a='F' : illegal

a="Hi" : legal

2. 'const' applies to 'a' rather than to the value of
a (constant pointer to char )

*a='F' : legal

a="Hi" : illegal

3. Same as 1.

Answer / srinivas

The answers for first and third case is fine,but in 2nd
case we cannot assign *a='F',becoz *a points to starting
address of the array you cannot change the value at that
address where the reference to that pointer is lost.

int i=10; main() { extern int i; { int i=20; { const volatile unsigned i=30; printf("%d",i); } printf("%d",i); } printf("%d",i); }

1 Answers  

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Code for 1>"ascii to string" 2>"string to ascii"

1 Answers   Aricent, Global Logic,

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void func1(int (*a)[10]) { printf("Ok it works"); } void func2(int a[][10]) { printf("Will this work?"); } main() { int a[10][10]; func1(a); func2(a); } a. Ok it works b. Will this work? c. Ok it worksWill this work? d. None of the above

1 Answers   HCL,

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Is there any difference between the two declarations, 1. int foo(int *arr[]) and 2. int foo(int *arr[2])

1 Answers  

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main() { int i; clrscr(); for(i=0;i<5;i++) { printf("%d\n", 1L << i); } } a. 5, 4, 3, 2, 1 b. 0, 1, 2, 3, 4 c. 0, 1, 2, 4, 8 d. 1, 2, 4, 8, 16

4 Answers   HCL,

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void main() { static int i; while(i<=10) (i>2)?i++:i--; printf(“%d”, i); }

2 Answers  

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int i; main(){ int t; for ( t=4;scanf("%d",&i)-t;printf("%d\n",i)) printf("%d--",t--); } // If the inputs are 0,1,2,3 find the o/p

2 Answers  

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const int perplexed = 2; #define perplexed 3 main() { #ifdef perplexed #undef perplexed #define perplexed 4 #endif printf("%d",perplexed); } a. 0 b. 2 c. 4 d. none of the above

1 Answers   emc2, HCL,

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main() { int i, j, *p; i = 25; j = 100; p = &i; // Address of i is assigned to pointer p printf("%f", i/(*p) ); // i is divided by pointer p } a. Runtime error. b. 1.00000 c. Compile error d. 0.00000

3 Answers   HCL,

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main() { char *p; p="%d\n"; p++; p++; printf(p-2,300); }

1 Answers  

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union u { union u { int i; int j; }a[10]; int b[10]; }u; main() { printf("\n%d", sizeof(u)); printf(" %d", sizeof(u.a)); // printf("%d", sizeof(u.a[4].i)); } a. 4, 4, 4 b. 40, 4, 4 c. 1, 100, 1 d. 40 400 4

3 Answers   HCL,

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main() { struct date; struct student { char name[30]; struct date dob; }stud; struct date { int day,month,year; }; scanf("%s%d%d%d", stud.rollno, &student.dob.day, &student.dob.month, &student.dob.year); }

1 Answers  

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