what is difference between ++i and i+=1 from any point of view

Question

This is a question from kn king\'s c programming : a modern approach. I can\'t understand the solution given by him:-

The expression ++i is equivalent to (i          


        

Answer 1

Difference between both are: ++ is a unary operator while + is a binary operator.... If we consider execution time: i++ is more faster than i=i+1. No of machine cycles differs to execute the same set of code, thats the reason ++ operators are always prefered for Loops. Refer to this thread for more info