Please, Explain the following i found it as a quiz in a challenge. What this program is going to do and whats its working...

Question

#include <iostream>
using namespace std;
typedef struct {
int bit1 : 1;
int bit2 : 2;
int bit30 : 30;
}bits;
int main() {
cout<<sizeof(bits);
return 0;
}
//Output is 8
//And also explain about the output why it is 8 according to me i was thinking it should be 12 as 3 int(s) are there in the structure and what is the role of : in the structure...

Answer 1

actually bit field was new concept for me...
but now i got it and thanks for your help...
~ swim ~

Answer 2

i also visited there to understand it
https://www.google.com/amp/s/www.geeksforgeeks.org/bit-fields-c/amp/

Answer 3

still not clear... 😬