How to print byte representation of a simple struct in C++

bytes.cpp

#include <iostream>

struct a
{
 int b;
 double c;
};

using namespace std;
int main()
{
 a aa;
 aa.b = 0;
 aa.c = 0.112;
 cout << aa.b << " | " << aa.c << endl;
 unsigned char* pointer = (unsigned char*)&aa;
 while (pointer < (unsigned char*)&aa + sizeof(a))
 {
   if ((pointer >= (unsigned char*)&aa + sizeof(aa.b)) && (pointer < (unsigned char*)&aa.c))
   {
        cout << " # ";
   }
   else
   {
     cout << " " << (int)(*pointer) << " ";
   }
   pointer++;
   if (pointer == (unsigned char*)&aa.c) cout << "|";
 }
 cout << endl;
}