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:
1 decade ago
Please give breif intro of null macro & stddef, Can we use stddef in any case?
Pradeep said:
1 decade ago
I want exact information & use of this function.
Himanshu said:
1 decade ago
NULL macro:
#define NULL 0
#define NULL 0
Jksahu said:
1 decade ago
stddef.h is stands for standard definition called it is uses for some exceptional condition.
Sundar said:
1 decade 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:
1 decade ago
If it necessary to include both the header files?
Chethan said:
1 decade ago
Can any one explain about stddef.h????
Harsh said:
1 decade ago
Please tell me What kind of standard definition?
Sasi said:
1 decade ago
It is also available in stdlib.h library
Shail said:
1 decade ago
What is the function of null marco?
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