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CuriousTab

Functions problems

  • 1. If int is 2 bytes wide.What will be the output of the program? 
    #include <stdio.h>
void fun(char**);

int main()
{
    char *argv[] = {"ab", "cd", "ef", "gh"};
    fun(argv);
    return 0;
}
void fun(char **p)
{
    char *t;
    t = (p+= sizeof(int))[-1];
    printf("%s\n", t);
}

  • Options
  • A. ab
  • B. cd
  • C. ef
  • D. gh
    • Discuss
  • 2. What will be the output of the program? 
    #include<stdio.h>

int addmult(int ii, int jj)
{
    int kk, ll;
    kk = ii + jj;
    ll = ii * jj;
    return (kk, ll);
}

int main()
{
    int i=3, j=4, k, l;
    k = addmult(i, j);
    l = addmult(i, j);
    printf("%d, %d\n", k, l);
    return 0;
}

  • Options
  • A. 12, 12
  • B. 7, 7
  • C. 7, 12
  • D. 12, 7
    • Discuss
  • 3. What will be the output of the program? 
    #include<stdio.h>
int i;
int fun1(int);
int fun2(int);

int main()
{
    extern int j;
    int i=3;
    fun1(i);
    printf("%d,", i);
    fun2(i);
    printf("%d", i);
    return 0;
}
int fun1(int j)
{
    printf("%d,", ++j);
    return 0;
}
int fun2(int i)
{
    printf("%d,", ++i);
    return 0;
}
int j=1;

  • Options
  • A. 3, 4, 4, 3
  • B. 4, 3, 4, 3
  • C. 3, 3, 4, 4
  • D. 3, 4, 3, 4
    • Discuss
  • 4. What will be the output of the program? 
    #include<stdio.h>
int sumdig(int);
int main()
{
    int a, b;
    a = sumdig(123);
    b = sumdig(123);
    printf("%d, %d\n", a, b);
    return 0;
}
int sumdig(int n)
{
    int s, d;
    if(n!=0)
    {
        d = n%10;
        n = n/10;
        s = d+sumdig(n);
    }
    else
        return 0;
    return s;
}

  • Options
  • A. 4, 4
  • B. 3, 3
  • C. 6, 6
  • D. 12, 12
    • Discuss
  • 5. What will be the output of the program? 
    #include<stdio.h>

int addmult(int ii, int jj)
{
    int kk, ll;
    kk = ii + jj;
    ll = ii * jj;
    return (kk, ll);
}

int main()
{
    int i=3, j=4, k, l;
    k = addmult(i, j);
    l = addmult(i, j);
    printf("%d %d\n", k, l);
    return 0;
}

  • Options
  • A. 12 12
  • B. No error, No output
  • C. Error: Compile error
  • D. None of above
    • Discuss
  • 6. What will be the output of the program? 
    #include<stdio.h>

int main()
{
    void fun(char*);
    char a[100];
    a[0] = 'A'; a[1] = 'B';
    a[2] = 'C'; a[3] = 'D';
    fun(&a[0]);
    return 0;
}
void fun(char *a)
{
    a++;
    printf("%c", *a);
    a++;
    printf("%c", *a);
}

  • Options
  • A. AB
  • B. BC
  • C. CD
  • D. No output
    • Discuss
  • 7. What will be the output of the program? 
    #include<stdio.h>
int fun(int, int);
typedef int (*pf) (int, int);
int proc(pf, int, int);

int main()
{
    printf("%d\n", proc(fun, 6, 6));
    return 0;
}
int fun(int a, int b)
{
   return (a==b);
}
int proc(pf p, int a, int b)
{
   return ((*p)(a, b));
}

  • Options
  • A. 6
  • B. 1
  • C. 0
  • D. -1
    • Discuss
  • 8. What will be the output of the program? 
    #include<stdio.h>
int i;
int fun();

int main()
{
    while(i)
    {
        fun();
        main();
    }
    printf("Hello\n");
    return 0;
}
int fun()
{
    printf("Hi");
}

  • Options
  • A. Hello
  • B. Hi Hello
  • C. No output
  • D. Infinite loop
    • Discuss
  • 9. What will be the output of the program? 
    #include<stdio.h>

int main()
{
    int i=1;
    if(!i)
        printf("CuriousTab,");
    else
    {
        i=0;
        printf("C-Program");
        main();
    }
    return 0;
}

  • Options
  • A. prints "CuriousTab, C-Program" infinitely
  • B. prints "C-Program" infinetly
  • C. prints "C-Program, CuriousTab" infinitely
  • D. Error: main() should not inside else statement
    • Discuss
  • 10. What will be the output of the program? 
    #include<stdio.h>
int fun(int(*)());

int main()
{
    fun(main);
    printf("Hi\n");
    return 0;
}
int fun(int (*p)())
{
    printf("Hello ");
    return 0;
}

  • Options
  • A. Infinite loop
  • B. Hi
  • C. Hello Hi
  • D. Error
    • Discuss

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