C - How does sizeof() of a function call works?

Question

I have a following line in C:

printf("size of sizeof is %d
", sizeof(printf("lol!
")));

Am I getting the size of a function pointer here?

question from:https://stackoverflow.com/questions/65645466/c-how-does-sizeof-of-a-function-call-works

Answer 1

Here, sizeof evaluates the return type of printf. (Here an int)