C: What is the difference between ++i and i++?

Question

In C, what is the difference between using ++i and i++, and which should be used in the incrementation block of a for loop?

Answer 1

You can think of internal conversion of that as a multiple statements;

• case 1

i++;

you can think it as,

i;
i = i+1;

• case 2

++i;

you can think it as,

i = i+i;
i;