NOT(~) vs NEGATION(!)

Question

#include 

using namespace std;
int main(int argc, char *argv[]) 
{
   int i=-5;
   while(~(i))
   {
      cout<         


        

Answer 1

! is true/false logic flipping

! means any nonzero becomes 0, and 0 becomes 1

eg1. !0b1010 -> 0b0000

eg2. !0b0000 -> 0b0001

eg3. !0b1111 -> 0b0000

generalised, out = in?0:1

while...

~ is bit flipping

~ means flip each and every bit

eg1. ~0b1010 -> 0b0101

eg2. ~0b0000 -> 0b1111

eg3. ~0b1111 -> 0b0000

generalised, out = in^0b1111