Chapter 5 Practice Problem #3

**Tay** · 01-13-2015

Hi, I'm having problems with this practice problem and I need a little help.

The problem is:

"Modify your password program from before to put all of the password checking logic into a seperate function, apart from the rest of the program."

Here is my code:

Code:

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

void password()
{
    string checkpassword;
     if (checkpassword == "taylor")
    {
        cout << "Access Allowed";
    }
    else
    {
        cout << "Wrong password";
    }
}

int main()
{
    cout << "Enter password: ";
    cin >> password();
}

So far, I have gone over Variables, If/Else statements, Loops, and this chapter's topic of functions so my knowledge is a bit limited. All help will be appreciated.

**Tay** · 01-13-2015

I'm sorry it's from chapter 6.

**grumpy** · 01-13-2015

Input tends to direct data into variables. Variables then get passed to functions.

Input does not go directly into a function. But that is what your code implies.

If you don't understand what I just said, you need to go over material you've completed already, with a view to learning it properly. You're skipping over things, and resulting to guesswork. Your guesses are flawed.

**Elysia** · 01-14-2015

Separate data and instructions. Instructions take data as input and transforms it into some other data as output. Data is information we're processing. Password is data. Functions are instructions. Functions process data. Information cannot store data. Information can only process data. Therefore, this code is flawed because a function cannot store data.

Store data into variables.
Pass those variables into functions to process data. That's how it's done.

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