Simple std::string replace in C++

Question

I am using the following code for replacing special characters in a system date format in Windows OS.

But I can only replace one character.

Code:

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

int main ()
{
    string str("10/16/13");
    string str2("/");
    str.replace(str.find(str2),str2.length(),"-");
    cout << str << endl;
    return 0;
}

Output:

10-16/13

Answer 1

If you only want to replace single characters then you can use std::replace from the <algorithm> header:

std::replace(str.begin(), str.end(), '/', '-');

This will replace all '/' in your string by '-'.