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- Question
Will the following functions work?
int f1(int a, int b) { return ( f2(20) ); } int f2(int a) { return (a*a); }
Options- A. Yes
- B. No
- Correct Answer
- Yes
ExplanationYes, It will return the value 20*20 = 400Example:
#include <stdio.h> int f1(int, int); /* Function prototype */ int f2(int); /* Function prototype */ int main() { int a = 2, b = 3, c; c = f1(a, b); printf("c = %d\n", c); return 0; } int f1(int a, int b) { return ( f2(20) ); } int f2(int a) { return (a * a); }Output:
c = 400
More questions
- 1. By default structure variable will be of auto storage class
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 2. Bitwise can be used to reverse a sign of a number.
Options- A. Yes
- B. No Discuss
Correct Answer: No
- 3. 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
- 4. Bitwise can be used to generate a random number.
Options- A. Yes
- B. No Discuss
Correct Answer: No
- 5. 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
- 6. 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
- 7. 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.- 8. 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.- 9. Bitwise | can be used to set multiple bits in number.
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 10. Bitwise & can be used to check if a bit in number is set or not.
Options- A. True
- B. False Discuss
Correct Answer: True
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