What will be the output of the program in 16 bit platform (Turbo C under DOS)? #

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Question

What will be the output of the program in 16 bit platform (Turbo C under DOS)?

#include<stdio.h>

int main()
{
    int fun();
    int i;
    i = fun();
    printf("%d\n", i);
    return 0;
}
int fun()
{
    _AX = 1990;
}

Options
A. Garbage value
B. 0 (Zero)
C. 1990
D. No output

Correct Answer

1990

Explanation

Turbo C (Windows): The return value of the function is taken from the Accumulator _AX=1990.

But it may not work as expected in GCC compiler (Linux).

More questions

1. Bitwise | can be used to set a bit in number.
Options
A. Yes
B. No

Discuss

Correct Answer: Yes

2. Can we have an array of bit fields?
Options
A. Yes
B. No

Discuss

Correct Answer: No

3. By default structure variable will be of auto storage class
Options
A. Yes
B. No

Discuss

Correct Answer: Yes

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

Discuss

Correct Answer: No

5. 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

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

Discuss

Correct Answer: No

7. 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

8. 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

9. 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.

10. 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.

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What will be the output of the program in 16 bit platform (Turbo C under DOS)?
#include<stdio.h> int main() { int fun(); int i; i = fun(); printf("%d\n", i); return 0; } int fun() { _AX = 1990; }

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What will be the output of the program in 16 bit platform (Turbo C under DOS)? #include<stdio.h> int main() { int fun(); int i; i = fun(); printf("%d\n", i); return 0; } int fun() { _AX = 1990; }

More questions

More in C Programming:

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What will be the output of the program in 16 bit platform (Turbo C under DOS)?
#include<stdio.h> int main() { int fun(); int i; i = fun(); printf("%d\n", i); return 0; } int fun() { _AX = 1990; }