Post incriment in C

Question

Why whe i give a++ as argument for printf it takes a+1 and not just a. Isnt it just a normal function?
https://code.sololearn.com/cK9JXw25bWml/?ref=app

Answer 1

the variable x = 5

var = x++ - the var variable will collect the value 5 and then the sum x + 1, ie a = 6 and var = 5

var = ++x - the code adds a + 1 first and then stores the value inside var, ie a = 6 and var = 6

Answer 2

Because the print statement is in the next line, after the post increment is done.

Answer 3

Thank you all ... 😀