bitwise XOR operator function

[wreck99]

I compiled a simple program:

#include<iostream>
#include<cstdlib>
#include<string>
#include<fstream>
using namespace std;

int main()
{
    string s="a";
    string k="5";
    k = k^s;
    system("PAUSE");
}

I got an error:no match for 'operator^'.I don't know what bitwise XOR does and i want to find it out by a simple program.Please help me out.Sorry for wasting your time on such simple questions.
Thank you for reading.

[Peter87]

Bitwise operators only work with integers.

[AbstractionAnon]

std::string doesn't support the bitwise XOR operator.
Change the type of s and k to char and you will be fine.
Note: You will need to change the values assigned to 'a' and '5' (single quotes).

[wreck99]

thanks very much

#include<iostream>
#include<cstdlib>
#include<string>
#include<fstream>
using namespace std;

int main()
{
    string s="a";
    string k="5";
    k[0] = k[0]^s[0];
    cout<<k;
    system("PAUSE");
}

This also worked.Thanks again.