栈实现10进制到8进制的转换

#include<iostream>
#include<string>
#include<stack>
using namespace std;
string conversion(int num){
stack<int> intstack;
int temp;
string str,strtemp;
while (num){
intstack.push(num % 8);
num = num / 8;
}
while (!intstack.empty()){
temp = intstack.top();
intstack.pop();
strtemp = to_string(temp);
str += strtemp;
}
return str;
}
int main()
{
string s;
s = conversion(1348);
cout << s << endl;
}