To increment or decrement the value of a variable while executing loops,why do we use the postfix operator....why not prefix??

Answer 1

it doesn't matter in most cases and postfix version is older

Answer 2

okay...thanks

Answer 3

I use prefix unless there a reason not to. Normally, the compiler will optimize both to the same performance, but logically postfix uses more steps. Compare how a naive C++ compiler could implement it:

int naivePrefix(int& x) {
x = x + 1;
return x;
}

int naivePostfix(int& x) {
int y = x;
x = x + 1;
return y;
}

[edit] fixed. post and pre were swapped.

Answer 4

we can use both. its depend on coder how he/she want to use

Answer 5

any of them can be used

Answer 6

Better use prefix as it runs before compilation..