Pointers

What will be the output of the program ?

#include

int main()
{
    char str[] = "peace";
    char *s = str;
    printf("%s\n", s++ +3);
    return 0;
}

What will be the output of the following C code?

#include 
    int main()
    {
        int i = 97, *p = &i;
        foo(&p);
        printf("%d ", *p);
        return 0;
    }
    void foo(int **p)
    {
        int j = 2;
        *p = &j;
        printf("%d ", **p);
    }

How many number of pointer (*) does C have against a pointer variable declaration?

What is the output of the code below?

int main()
{
int i = 10;
int *const p = &i;
foo(&p);
printf("%d\n", *p);
}
void foo(int **p)
{
int j = 11;
*p = &j;
printf("%d\n", **p);
}

If the size of integer is 4bytes, What will be the output of the program?

#include

int main()
{
    int arr[] = {12, 13, 14, 15, 16};
    printf("%d, %d, %d\n", sizeof(arr), sizeof(*arr), sizeof(arr[0]));
    return 0;
}

What is the output of this C code?

int main()
{
char *p = NULL;
char *q = 0;
if (p)
printf(" p ");
else
printf("nullp");
if (q)
printf("q\n");
else
printf(" nullq\n");
}

Which of the following changes can correct the program so that it prints “Geeks Quiz”?

#include  
  
void myStrcat(char *a, char *b) 
{ 
    int m = strlen(a); 
    int n = strlen(b); 
    int i; 
    for (i = 0; i <= n; i++) 
       a[m+i]  = b[i]; 
} 
  
int main() 
{ 
    char *str1 = "Geeks "; 
    char *str2 = "Quiz"; 
    myStrcat(str1, str2); 
    printf("%s ", str1); 
    return 0; 
} 

What is the output of this C code?

void main()
{
int x = 0;
int *ptr = &x;
printf("%d\n", *ptr);
}

How many bytes are occupied by near, far and huge pointers (DOS)?

Which of the following is the correct syntax to send an array as a parameter to function?