Discussion
What is the output of this C code?
int *i;
int main()
{
if (i == NULL)
printf("true\n");
return 0;
}
Answer: A
Correct answer: true
i is at file scope with no initialiser, so it is zero-initialised - and for a pointer that means the null pointer. The comparison with NULL therefore succeeds and true is printed.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development