#include <iostream>
 
using std::cout;
using std::cin;
using std::endl;
 
int main(){
     bool bits[] = {0, 1, 0, 0, 0, 0, 0, 1};
     char c = 0;
     for(int i = 0; i < 8; i++)
           c += (bits[i] >> i); // 0 or 1 times 2 to the ith power
     cout << c << endl; // should print out A
     cin.get();
     return 0;
}

char boolsToChar(bool* bools){
     char c = 0;
     for( int i = 0; i < 8; i++ )
          if( bools[i] ) 
              c += pow(2,i);
     return c;
}

    bool bits[] = {1, 0, 0, 0, 0, 0, 1, 0};
    char c = 0;
    for(int i = 0; i < 8; i++)
           c += (bits[i] << i); // 0 or 1 times 2 to the ith power
    cout << c << endl; // should print out A
    cin.get();

#include <iostream>
 
struct octet {
  union {
    char val;
    struct {
      unsigned h : 1;
      unsigned g : 1;
      unsigned f : 1;
      unsigned e : 1;
      unsigned d : 1;
      unsigned c : 1;
      unsigned b : 1;
      unsigned a : 1;
    };
  };
};
 
int main() {
  bool bits[] = {0, 1, 1, 0, 0, 0, 0, 1};
 
  octet o;
  o.a = bits[0];
  o.b = bits[1];
  o.c = bits[2];
  o.d = bits[3];
  o.e = bits[4];
  o.f = bits[5];
  o.g = bits[6];
  o.h = bits[7];
 
  std::cout << o.val; // 01100001 = 'a'
  std::cin.ignore();
}