Need help with this program I'm trying to make

**Sshakey6791** · 12-01-2008

I'm trying to make a program that ask you to make a user name and password and store it but i have no idea how to store it. here's what i have so far it is just the basic out line so you know what I'm talking about.

Code:

#include <iostream>
#include <stdio.h>
#include <string>


using namespace std;

string C_UserName; // Creat a username
string C_PassWord; // creat a password
char UserName[26]; // If you all ready have an account
char PassWord[26]; // if you all ready have an account

string CreatAcc; // Creating a account or not.

int main() {

	cout << "Creat Account \n>";
	cin >> CreatAcc;

	if ( ( CreatAcc == "Yes" ) || ( CreatAcc == "yes" ) ) {


		cout << "Creat Username \n>";
		getline (cin, C_UserName);

		cout << "Creat Password \n>";
		getline(cin, C_PassWord);


	} else if ( ( CreatAcc == "No" ) || ( CreatAcc == "no" ) ) {

		cout << "Enter your Username \n>";
		cin >> UserName;

		cout << "Enter your Password \n>";
		cin >> PassWord;

	} else {

		cout << "ERROR!!!!\n";

	}



	system ( "Pause" );
	
	return(0);
	
}

remember this is a basic out line not even close to being done.

**tabstop** · 12-01-2008

Store it where? In a variable? In a file? Somewhere in the ether?

**Sshakey6791** · 12-01-2008

Store it somewhere so i can get it later like a database.... can you do database in C++..... and if not then mostly a file.

**rags_to_riches** · 12-01-2008

SQLite is a small, free, public-domain database that would be a suitable one with which to start.

**Sshakey6791** · 12-01-2008

Thanks, i will have to try that, Now can anyone saw me how to do it with files

**matsp** · 12-01-2008

What have you done so far, with regards to files?

--
Mats

**Sshakey6791** · 12-01-2008

Nothing to big i know most of the basics

**hauzer** · 12-01-2008

Don't forget that database is just an organized file.

**matsp** · 12-01-2008

Originally Posted by Sshakey6791

Nothing to big i know most of the basics

Ok, so why don't have TRY to do something - the point is that you can post to forums and copy the results forever without learning how to ACTUALLY do ANYTHING (except post and copy on forums - which is a useful skill, but not quite as useful as learning things for yourself).

Post your attempt - if you don't know where to start, try the cprogramming.com tutorials for file handling in C++.

--
Mats

**Elkvis** · 12-01-2008

Originally Posted by tabstop

Store it where? In a variable? In a file? Somewhere in the ether?

I prefer to use a rift in space/time to store my data in a subspace field. it seems much more secure than memory, which goes away when power is cut, and even more secure than a disk which can fail at any time. the added bonus is that when I travel through time to observe the history of the universe, my data is accessible from any point in space/time, since it resides in an area outside our universe.

**Elysia** · 12-01-2008

Move those global variables inside main, too.

**Sshakey6791** · 12-01-2008

ether way the variables work why would it matter ?

**laserlight** · 12-01-2008

Originally Posted by Sshakey6791

ether way the variables work why would it matter ?

When you begin to introduce functions other than main, you may find that the variables do not work as you expected, since you may get confused between variables in local scope and those in global scope.

Maintenance and bug fixing becomes more difficult because it is harder to reason about the state of a global variable, so it is harder to determine the full effects of a change that involves a global variable. Your functions become harder to reuse because they are tightly coupled to the global variables.

**Elysia** · 12-01-2008

Originally Posted by Wikipedia

The use of global variables makes software harder to read and understand. Since any code anywhere in the program can change the value of the variable at any time, understanding the use of the variable may entail understanding a large portion of the program. They make separating code into reusable libraries more difficult because many systems (such as DLLs) don't directly support viewing global variables in other modules. They can lead to problems of naming because a global variable makes a name dangerous to use for any other local or object scope variable. A local variable of the same name can shield the global variable from access, again leading to harder to understand code. The setting of a global variable can create side effects that are hard to understand and predict. The use of globals make it more difficult to isolate units of code for purposes of unit testing, thus they can directly contribute to lowering the quality of the code.

http://en.wikipedia.org/wiki/Global_variables

**Sshakey6791** · 12-01-2008

Thanks Never looked at it that way.....

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