How to deal with a wrapping counter in embedded C

Question

I need to deal with a counter that gives me ticks for my application. The counter is 32bits so what i need to know is how to deal with it when it wraps. for example:

I h

Answer 1

Assuming you're dealing with unsigned types, you can check for wrapping pretty easily --

if (timestamp + shifftime < timestamp) 
    it_wrapped();