dafuq?

#include <iostream>
#include <sstream>
using namespace std;

struct binary_t {
string bin;
int bits;
};

binary_t binprint (unsigned int number) {
int bin;
binary_t binary;
binary.bits=0;
stringstream out;

do {
   bin = number%2;
   number/=2;
   binary.bits++;
   out << bin;
   binary.bin=out.str()+binary.bin;
   out.str("");
   } while (number>0);
return binary;
}

int main()
{
char response;
union {
unsigned int a;
float b;
char c;
} blarg;

do {
   cout << "a) unsigned int\nb) float\nc) char\nInput as:";
   cin >> response;
   cin.ignore(255,'\n');
   } while (response!='a'&&response!='b'&&response!='c');
cout << "Input:";
switch (response) {
   case 'a':
      cin >> blarg.a;
      break;
   case 'b':
      cin >> blarg.b;
      break;
   case 'c':
      cin >> blarg.c;
      break;
      }
binary_t binary = binprint(blarg.a);
cout << "unsigned int:" << blarg.a <<endl;
cout << "float:" << blarg.b <<endl;
cout << "char:" << blarg.c <<endl;
cout << "binary:" << binary.bin <<endl;
cout << "number of significant bits:" << binary.bits <<endl;
cin.ignore(255, '\n');
cin.get();
}