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Home ‣ C Programming ‣ Functions See What Others Are Saying!
  • Question

  • If a function contains two return statements successively, the compiler will generate warnings. Yes/No?


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • Yes 

    Explanation
    Yes. If a function contains two return statements successively, the compiler will generate "Unreachable code" warnings.

    Example:

    
#include<stdio.h>
int mul(int, int); /* Function prototype */

int main()
{
    int a = 4, b = 3, c;
    c = mul(a, b);
    printf("c = %d\n", c);
    return 0;
}
int mul(int a, int b)
{
   return (a * b);
   return (a - b); /* Warning: Unreachable code */
}

    Output:
    c = 12

    More questions

    • 1. Is it necessary that in a function which accepts variable argument list there should be at least be one fixed argument?

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 2. Bitwise can be used to generate a random number.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 3. A function that receives variable number of arguments should use va_arg() to extract the last argument from the variable argument list.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Bitwise & can be used to check if more than one bit in a number is on.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The preprocessor can trap simple errors like missing declarations, nested comments or mismatch of braces.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. It is necessary that a header files should have a .h extension?

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 7. Bitwise | can be used to set multiple bits in number.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 8. Bitwise & can be used to check if a bit in number is set or not.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A pointer union CANNOT be created

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 10. What will be the output of the program? 
      #include<stdio.h>
#include<stdlib.h>

int main()
{
    union test
    {
        int i;
        float f;
        char c;
    };
    union test *t;
    t = (union test *)malloc(sizeof(union test));
    t->f = 10.10f;
    printf("%f", t->f);
    return 0;
}

    • Options
    • A. 10
    • B. Garbage value
    • C. 10.100000
    • D. Error
      • Discuss

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