What is the output of the program #include<stdio.h> int main() { extern int

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Question

What is the output of the program

#include<stdio.h>
int main()
{
    extern int fun(float);
    int a;
    a = fun(3.14);
    printf("%d\n", a);
    return 0;
}
int fun(int aa)
{
	return (int)++aa;
}

Options
A. 3
B. 3.14
C. 0
D. 4
E. Compile Error

Correct Answer

Compile Error

Explanation

2 Errors
1. Type mismatch in redeclaration of fun
2. Type mismatch in parameter aa

More questions

1. Bitwise can be used to reverse a sign of a number.
Options
A. Yes
B. No

Discuss

Correct Answer: No

2. 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

Correct Answer: Yes

3. Bitwise can be used to generate a random number.
Options
A. Yes
B. No

Discuss

Correct Answer: No

4. 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

Correct Answer: False

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

Discuss

Correct Answer: True

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

Discuss

Correct Answer: False

Explanation:

False, the preprocessor cannot trap the errors, it only replaces the macro with the given expression. But the compiler will detect errors.

7. It is necessary that a header files should have a .h extension?
Options
A. Yes
B. No

Discuss

Correct Answer: No

Explanation:

No, the header files have any kind of extension.

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

Discuss

Correct Answer: Yes

9. Bitwise & can be used to check if a bit in number is set or not.
Options
A. True
B. False

Discuss

Correct Answer: True

10. A pointer union CANNOT be created
Options
A. Yes
B. No

Discuss

Correct Answer: No

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What is the output of the program
#include<stdio.h> int main() { extern int fun(float); int a; a = fun(3.14); printf("%d\n", a); return 0; } int fun(int aa) { return (int)++aa; }

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What is the output of the program #include<stdio.h> int main() { extern int fun(float); int a; a = fun(3.14); printf("%d\n", a); return 0; } int fun(int aa) { return (int)++aa; }

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What is the output of the program
#include<stdio.h> int main() { extern int fun(float); int a; a = fun(3.14); printf("%d\n", a); return 0; } int fun(int aa) { return (int)++aa; }