Set Bits Function

Another challenge was given by Fardad today. We have to create a function to set the bits of an integer using the bit pattern of a character and a given position. Here it is:

#include <iostream>
using namespace std;

void setBits(int& number, char ch, int pos){
  for(int i = pos, j = 1; i < pos + 8; (ch&(1<<(j-1))) ? number |= 1 << i - 1 : number &= ~(1 << (i-1)), i++, j++);
}

int main(){ 

  int value1 = 16384; // 100000000000000
  int value2 = 32767; // 111111111111111
  int value3 = 16511; // 100000001111111
  char a = 0xFF;      // 11111111
  char b = 0xAA;      // 10101010
  char c = 0x83;      // 10000011

  setBits(value1, a, 3);
  cout << value1 << endl; // 100001111111100, 17404
  setBits(value2, b, 1); 
  cout << value2 << endl; // 111111110101010, 32682
  setBits(value3, c, 3);
  cout << value3 << endl; // 100001000001111, 16911

  return 0;
}