Question

OUTPUT

Fun1 is not fun
9

CODE

#include <stdio.h>

int fun1(void){
    printf("Fun1 is not fun\n");
    return 45%54/5;
}

main()
{
    int c;
    c=fun1();
    printf("%d\n", c);
}  

QUESTION

Why does it output 9 from the 45%54/5? Would this not output 2? The only way I could see this being 9 is by skipping the %, (modulus division operator, right?) then dividing by 5 omitting the 54 completely but that makes no sense to me.

edit: random secondary question. If I name my file test.c, compile it with cc test.c -o test, then type “test”, nothing happens. If I compile under any other name than test, it works fine. What gives?

Answer 1

45 % 54 / 5

is

(45 % 54) / 5

Which evaluates as:

45 % 54 = 45
45 / 5  = 9

---

45 mod 54 is equal to 45. I don’t see how you expect to get 2 regardless of how you order them.