loop's counter i as I++ vs. i+1 as position in an array

Question

I\'ve made a loop with i as it\'s counter variable.
Inside that loop I\'m comparing cells of an array.
I\'m wondering what\'s the difference between array[i++] (or a

Answer 1

Let's define i=0, then

• i++ will return 0 and afterwards increment i to 1
  (post increment: returns value, afterwards increase)
• ++i will increment i to 1 and afterwards return 1
  (pre increment: increases, afterwards return value)
• ì+1 will not increment i and return 1
  (addition: only return the result, doesn't touch the variable)

I assume, you don't want to increment i by itself, only add 1 to access an index with a different offset.