why we need function pointers?
- 3 Answers
- 5318 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / kirankumaryakkala
a pointer that holds the address of a function.
in writing the interrupt service routines(isr),memory virus
programs, etc..
as simply, if u wanna execute one function out of two or
more funcitons( the selection based dynamically)
ex. int add(int a, int b)
int sub(int a, int b)
int mul(int a, int b)
int (*ptr)(int a, int b) //function pointer declaration to
hold a function that takes two integers, returns one integer
here,
ptr= it can assign any function name that is going to execute
| Is This Answer Correct ? | 11 Yes | 2 No |
Answer / naman patidar
Apart from above mentioned usage function pointer are used
by event listeners and callback utilities in multi threaded
applications.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / gajendra
Function Pointers are pointers, i.e. variables, which point to the address of a function. You must keep in mind,
that a running program gets a certain space in the main-memory. Both, the executable compiled program code
and the used variables, are put inside this memory.
| Is This Answer Correct ? | 0 Yes | 0 No |
How do I send escape sequences to control a terminal or other device?
what are bit fields in c?
Where static variables are stored in memory in c?
What is the use of function in c?
Explain what is meant by 'bit masking'?
How can my program discover the complete pathname to the executable from which it was invoked?
What are types of functions?
what do the 'c' and 'v' in argc and argv stand for?
Why c is called top down?
what is c?
Explain 'bit masking'?
what will be the output of this program? void main() { int a[]={5,10,15}; int i=0,num; num=a[++i] + ++i +(++i); printf("%d",num); }
C 
