How do I implement a function that reads each bit of a variable?

Question

The output of printBits('A') suppose to be 0100 0001 but I'm getiing 0100 0001 0100 1101 0000 0000. I can't seem to figure out the problem in my code below.

unsigned char getBit(unsigned char c, int n) {
  return c=(c&(1<<n))>>n;

}


void printBits(unsigned char c) {
  int i=7;
  while(i>=0){
    printf("%d", (getBit(c,i--);
  }
}

Answer 1

Your output seems to match your input just fine, but your output shows you called your print function two more times. The output matches this sequence of calls:

printBits('A');
printBits('M');
printBits('\0');

This is shown here (after fixing a syntax error in your print function).