Decimal value to binary string

dectobinstr.cpp

#include <iostream>
#include <string>
#include <stdint.h>
using namespace std;

int main(int argc, char **argv)
{
  uint32_t Dec = 1234;
  uint32_t Comp = 1 << 31;
  string BinStr;
  for(int i = 0; i<=31; i++)
  {
    if((Comp & Dec) != 0)
    {
      BinStr.append("1");
    }
    else
    {
      BinStr.append("0");
    }
    Comp >>= 1;
  }
  cout << BinStr << endl;
  return 0;
}