C++ Coding for Password with requirements

[kg16w]

Hey guys! I got super behind in my C++ class and I feel like I dont really know what I am doing. I've been trying to piece together from other examples of password coding, but I got a little lost in the sauce. Anyways, the requirements for this program is that the user is to type a password, be told if their password meets the requirements, and then verify their password by typing it again. The requirements are that the password have 1 uppercase 1 lowercase a symbol and is at least 8 digits long. My coding is not complete, so I know it wont run, however this is what I have so far:

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

void PassReq(string& input)
{
    int n = input.length();

    bool lowercase = false, uppercase = false;
    bool special = false;
    string normalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890 ";

    for (int i = 0; i < n; i++) {
        if (islower(input[i]))
            lowercase = true;
        if (isupper(input[i]))
            uppercase = true;

        size_t special = input.find_first_not_of(normalChars);
        if (special != string::npos)
            special = true;
    }

    if (lowercase && uppercase && special && (n >= 8))
        cout << "Password Valid" << endl;
    else
        cout << "Password Invalid. Please try again." << endl;
}

int main()
{
    cout << "Please type your password:" << endl; 
    cin >>  >> endl;
    PassReq(input);
    return 0;
}

My question is what would I use to clarify that the user is inputting a password because when I tried to declare "char PassWord" I was told it was incompatiable with my void. Also after passing the requirements, how do I turn it into a loop that checks one more time? I got stuck and could really use some help. Please let me know :) thanks

[rproffitt]

This sounds like you need a primer on strings. Time to find a tutorial on strings. How about: https://www.tutorialspoint.com/cplusplus/cpp_strings.htm as it gets into C style strings and new spiiffy C++ strings.