convert bin to dec stuck in infinite loop

[Elzcode]

So we have to convert dec into bin oct and hex. The bin has to use a while loop and right now mine is in an infinite loop. I thought that doing 'bin++' adds 1 to the variable so this does not happen?
Also to convert decimal to binary, don't you find the modulus of the number then divide it by 2??? - It doesn't seem to be working.
I'm so confused, i'm not even a computer science major, i'm graphic design and I wanted to learn a bit of programming (like c++) so I know what developers are doing to make the apps I design (front-end) work.
Can someone explain in lay-man's terms whats going on? I think I get the whole concept of the loops and everything it's just implementing them is difficult. My book is just saying the same thing over and over; 'while (expression) statement;'

* Also, sorry if the code isn't formatted, I didn't know if copy/paste is all I need to do*

#include "stdafx.h"
#include <iostream>

using namespace std;


int _tmain(int argc, _TCHAR* argv[])
{
int low;
int high;

int a;
int bin2;




cout << "Enter the low number: ";
cin >> low;
cout << "Enter the high number: ";
cin >> high;

cout << "Decimal Binary Octal Hexadecimal" << endl;
for (a = low; a <= high; a++)
{
cout << a << "\t" << endl;
}

int bin = low;
while (bin <= high)
{
bin = low % 2;
low /= 2;
bin2 = low;
cout << bin2 << "\t" << endl;
bin++;
}
return 0;


Thanks in advanced!

[liuyang]

in the while statement, you have bin <= high. that means the following block of code will repeat executing whenever bin <= high.

look into the block, you're changing bin every time, and it's not likely to be reducing.

[dhayden]

The other problem is the nasty bit that you're extracting the least significant binary digit first, but you want to print that one last. You can handle this easily with a simple C char array and fill it in backwards:

string toBinary(unsigned int num)
{
    char buf[30];
    buf[29] = 0;
    char *cp = buf+29;

    if (num == 0) return "0";   // special case for zero.

    while (num) {
        --cp;
        int digit = num%2;  // get the least significant digit
        *cp = '0' + digit;      // digit 0 -> character '0'. Digit 1 -> character '1'
        num /= 2;
    }
    return cp;
}

Line 15 converts the C string to a std::string and returns it.