Alternative to C++ to_string if not available in platform. It happens :)

to_str.cpp

std::string to_str(int num){
	std::string str = "";

	std::string nums[10];
	nums[0] = "0";	nums[1] = "1";	nums[2] = "2";	nums[3] = "3";	nums[4] = "4";
	nums[5] = "5";	nums[6] = "6";	nums[7] = "7";	nums[8] = "8";	nums[9] = "9";

	if(num == 0)	return nums[0];
	int d = pow(10, 1.0 + floor(log10(num)));
	while (d /= 10)	str += nums[(num / d) % 10];
	return str;
}