How to implement variable argument functions ?
- 1 Answers
- 7224 Views
- HP, I also Faced
- E-Mail Answers
Variable-argument functions in C are inherently unsafe
since there is no language-level mechanism to ensure that
the actual arguments agree in type and number with the
arguments that the function will be using. There are
several ways to implement variable argument functions in C
You can try to implement such function by taking the
address of a formal argument and working your way through
the stack frame.A better alternative is to use the
__builtin_next_arg function on gcc and then work your way
up the stack. You can write your variable argument
functions using the standard macros in <stdarg.h> and
<vararg.h>.
| Is This Answer Correct ? | 8 Yes | 2 No |
Once I have used freopen, how can I get the original stdout (or stdin) back?
What is the function of this pointer?
0 Answers Agilent, ZS Associates,
what is the Output? int a=4 b=3; printf("%d%d%d%d%d%d",a++,++a,a++,a++,++a,a++); printf("%d%d%d%d%d%d",b--,b--,--b,b--,--b,--b);
Linked lists -- can you tell me how to check whether a linked list is circular?
What is console in c language?
Devise a program that inputs a 3 digit number n and finds out whether the number is prime or not. Find out its factors.
How many levels of indirection in pointers can you have in a single declaration?
0 Answers Agilent, ZS Associates,
what is the differnce between AF_INET and PF_INET?
5 Answers Systems Plus, Wipro,
How can you check to see whether a symbol is defined?
When should volatile modifier be used?
What is pre-emptive data structure and explain it with example?
What is hash table in c?
C 
