Ошибка C2014; Visual Studio 2012

Я нашел этот код для преобразования строки в pdu (septet to octet char)

#include <iostream>
#include <sstream>
#include <iomanip>
#include <string>

std::string toPDU(const std::string &original)
// Converts an ANSI string to PDU format
{
if (original.empty()) {
// Empty string -> nothing to do
return original;
}
std::string result;
// Reserve enough space to hold all characters
result.reserve((original.length() * 7 + 7) / 8);
// Variables for holding the current amount of bits to copy from the next character
size_t bitshift = 1, mask = 0x01;
unsigned char curr = original&#091;0&#093;;  //->> ERROR !!!!!!!!!!!!!!!!!
for (size_t i = 1; i < original.length(); ++i) {
if (bitshift != 0) {
// If bitshift is 0, then curr will be 0, so in effect we should skip a character
// So only do the following when bitshift different from 0

// Add the low bits (using the mask) to the left of the current character
curr += (static_cast<unsigned char>(original&#091;i&#093;) & mask) << (8 - bitshift);
result += curr;
}
// Remember the remaining bits of this character so that we can add them later
curr = (original&#091;i&#093; & ~mask) >> bitshift;
// Cycle bitshift through 0-7 (could also be written as bitshift = (bitshift + 1) mod 8)
bitshift = (bitshift + 1) & 0x7;
// Set the mask to have all bitshift lower bits set
// e.g. bitshift = 3, then mask = 0x07
// bitshift = 5, then mask = 0x1F
// bitshift = 7, then mask = 0x7F
mask = (1 << bitshift) - 1;
}
result += curr;
return result;
}

std::string toHEX(const std::string &original)
// Converts a string to the hexadecimal representation of its characters
{
std::ostringstream os;
os << std::hex << std::uppercase;
for (size_t i = 0; i < original.length(); ++i) {
os << static_cast<unsigned int>(static_cast<unsigned char>(original&#091;i&#093;)) << " ";
}
return os.str();
}

int main()
{
using namespace std;
cout << toHEX(toPDU("hellohello")) << endl;
return 0;
}

И получил эту ошибку в visual studio 2012:

ошибка C2014: команда препроцессора должна начинаться с первого не белого пространства

Я новичок в C ++, кто-нибудь может объяснить, почему эта ошибка происходит? Благодарю.