Thread: append file?

  1. #1
    Unregistered
    Guest

    Question append file?

    I am very new to programming and would like to append information to a file (not write over existing text)

    I am using Microsoft visual c++ and here is my write to file code
    (writes all the information over existing text)


    #include<iostream.h>
    #include<fstream.h>

    void main()
    {

    //declare variables

    char firstname[10];//allow upto 10 characters long ?
    char surname[10];
    char age[10];
    char gender[10];

    //get input from user

    cout<<"enter your christian name : ";
    cin>>firstname;//set firstname to name entered by user

    cout<<"enter your surname : ";
    cin>>surname;//set surname to name entered by user

    cout<<"enter your age : ";
    cin>>age;//set age to input entered from user

    cout<<"male or femele ? ";
    cin>>gender;//set gender to inputfrom user

    //setup new output stream (give it a name)

    ofstream outfile;

    //target it to a text file
    //then open it ready for data transfer

    outfile.open("C:\\outtest.txt");

    //send data

    outfile<<surname<<endl;
    outfile<<firstname<<endl;
    outfile<<age<<endl;
    outfile<<gender<<endl;
    //this just appended the text one after the other
    //so how do I append all the text to the end of a file?

    cout<<endl<<"file written\n";


    }

  2. #2
    Registered User
    Join Date
    Sep 2001
    Posts
    2
    When you create the file open it to append

    ofstream file(file_name,ios::app);
    file<<surname<<endl;
    .;
    .;
    This will automactically append anything you output to the end of the file you have opened

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