C Programming - Pointers - Discussion
Discussion Forum : Pointers - General Questions (Q.No. 3)
3.
In which header file is the NULL macro defined?
Answer: Option
Explanation:
The macro "NULL" is defined in locale.h, stddef.h, stdio.h, stdlib.h, string.h, time.h, and wchar.h.
Discussion:
48 comments Page 4 of 5.
Gourav Sharma said:
2 decades ago
Please give breif intro of null macro & stddef, Can we use stddef in any case?
Pradeep said:
2 decades ago
I want exact information & use of this function.
Himanshu said:
2 decades ago
NULL macro:
#define NULL 0
#define NULL 0
Jksahu said:
2 decades ago
stddef.h is stands for standard definition called it is uses for some exceptional condition.
Sundar said:
2 decades ago
@Vanitha
Include any one of the header files stdio.h or stddef.h, it is enough to use NULL.
Anyhow, including the both header files stdio.h and stddef.h WILL NOT create any problem.
Have a nice day!
Include any one of the header files stdio.h or stddef.h, it is enough to use NULL.
Anyhow, including the both header files stdio.h and stddef.h WILL NOT create any problem.
Have a nice day!
Vanitha said:
2 decades ago
If it necessary to include both the header files?
Chethan said:
2 decades ago
Can any one explain about stddef.h????
Harsh said:
2 decades ago
Please tell me What kind of standard definition?
Sasi said:
2 decades ago
It is also available in stdlib.h library
Shail said:
2 decades ago
What is the function of null marco?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers