Quick Question about <fstream>

[garrows]

Is there a way to make it to where it does not overwrite the file everytime you run the program? I have this so far but it overwrites what I wrote to the document the last time.
Thanks garrows

ofstream outputFile;
outputFile.open("Password.txt");
outputFile << "Your password is:";

[keskiverto]

The open() takes two arguments:
http://www.cplusplus.com/reference/fstream/ofstream/open/

[Cubbi]

Make sure to read the descriptions of the functions you call, it's a huge help

The description of the function you're calling here can be found in both C++ references:
http://www.cplusplus.com/reference/fstream/basic_ofstream/open/
http://en.cppreference.com/w/cpp/io/basic_ofstream/open

It sounds like you're looking for the app (append) open mode

also note that using two-phase init is a bad habit;

    std::ofstream outputFile("Password.txt", std::ios::app);
    outputFile << "Your password is:\n";

demo: http://coliru.stacked-crooked.com/a/08aa63892373c45a

[garrows]

Chubbi Sorry for the bad habbit, I didn't quite understand what you said, Ill post my code in here

#include <iostream>
#include <cstdlib>
#include <ctime>
#include <string>
#include <Windows.h>
#include <fstream>
#include <conio.h>
#include <stdio.h>
#include <limits>
#include <stdexcept>
#include <string.h>
#include <cctype>
using namespace std;


static const char alphanum[] =
"0123456789"
"!@#$%^&*"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz";
int size = sizeof(alphanum) - 1;

int main()

{
int length;
ofstream outputFile("Password.txt", ios::app);
outputFile.open("Password.txt");
if (outputFile.is_open())
{
    outputFile << "File successfully opened" <<endl;
}
else
{
    cout << "Error opening file" <<endl;
}
outputFile << "Your password is:";

	//password length
	cout << "Welcome to garrow's password generator" <<endl;
	Sleep(1500);
	cout << "...............Please Hold..............." <<endl;
	Sleep(5000);
	system("cls");
	cout << "Please enter the amount of characters you want your password to be."<<endl;
	cin >> length;
	char a;
	cout << "Are you sure?(Y/N)" <<endl;
	cin >> a;
	Sleep(250);
	system("cls");
    switch (toupper( a ))
    {
        case 'Y':{ cout << "Your password is" <<endl;
	//-----------------------password generation-------------------
	char pwd[1000] = {0};
    srand(time(0));
    for (int password = 0; password < length; password++)
   {
    pwd[password] = alphanum[rand() % size];
    cout << pwd[password];
}
	outputFile << " " << pwd << " " <<endl;
	outputFile.close();
	Sleep(99999999999999);
	return 0;}
	break;
        case 'N':{

       cout << "Please enter the correct amount of characters you want your password to be." <<endl;
       cin >> length;
       cout << "Your password is" <<endl;
	//-----------------------password generation-------------------
	char pwd[1000] = {0};
    srand(time(0));
    for (int password = 0; password < length; password++)
   {
    pwd[password] = alphanum[rand() % size];
    cout << pwd[password];
}
	outputFile << " " << pwd << " " <<endl;
	outputFile.close();
	Sleep(99999999999999);
	return 0;

        }
    }
}

What im trying to do is have the code not create a new document everytime but instead create a new line in the document then write the 2nd run password or 3rd run password.

-Garrows

[Cubbi]

After fixing line 27 (which opens the file in append mode), you forgot to remove line 28 (which opens the file in replace mode)