typedef Related doubts?

[rajeshs]

Thank you very much for your valuable reply,

now i am getting to know about typedef

If any body knows about advantages of using function pointers please help me?

[jacek]

If any body knows about advantages of using function pointers please help me?

Function pointers are used when a value isn't enough --- you can use them to pass around different behaviours. The classic examples are qsort() and callbacks. In OO world, FP were replaced by functional objects (a.k.a. functors).