Creating a file in a certain directory

This is a discussion on Creating a file in a certain directory within the C++ Programming forums, part of the General Programming Boards category; How can i create a text file in a certain directory using ofstream? Also, how can i access a text ...

  1. #1
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    Creating a file in a certain directory

    How can i create a text file in a certain directory using ofstream?

    Also, how can i access a text file in a certain directory using ifstream?

    Any help is Apreciated. Thx.

    ~BC17

  2. #2
    Confused Magos's Avatar
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    Code:
    ifstream ReadFile;
    ofstream WriteFile;
    
    //Open a file in an absolute folder
    ReadFile.open("C:\\MyFolder\\MyFile.ext", ios::in);
    
    //Open a file in a subfolder (from the one the exe is in)
    WriteFile.open("MyFolder\\MyFile.ext", ios::out);
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  3. #3
    Carnivore ('-'v) Hunter2's Avatar
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    For WriteFile, shouldn't it be ios::out?
    Just Google It. √

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    Thankyou very much. This knowledge will help my with my database program.

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    Code:
    ofstream test;
    test.open("C:Program Files\\Phonebook\\filename.txt", ios::out);
    test<<data;  //inputs a string into the file data is a character array
    test.close();
    
    fstream test1;
    test1.open("C:Program Files\\Phonebook\\filename.txt", ios::in);
    test1>>str; //retrieves string inputted to the file and stores it 
                        //as str( a character array)
    test.close();
    for some reason the file is not being created
    Anyone know why?

  6. #6
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    err sorry the \\ is in my program code(just not in the post) still doesn't work tho

    Also, is the ios necessary?

    Code:
    ofstream test;
    test.open("C:\\Program Files\\Phonebook\\filename.txt", ios::out);
    test<<data;  //inputs a string into the file data is a character array
    test.close();
    
    fstream test1;
    test1.open("C:\\Program Files\\Phonebook\\filename.txt", ios::in);
    test1>>str; //retrieves string inputted to the file and stores it 
                        //as str( a character array)
    test.close();

  7. #7
    Confused Magos's Avatar
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    Try this and see what happens:
    Code:
    ofstream test;
    test.open("C:\\Program Files\\Phonebook\\filename.txt", ios::out);
    if(test.fail())
    {
       cout << "Unable to save!" << endl;
       return 0;
    }
    test<<data;  //inputs a string into the file data is a character array
    test.close();
    
    fstream test1;
    test1.open("C:\\Program Files\\Phonebook\\filename.txt", ios::in);
    if(test1.fail())
    {
       cout << "Unable to load!" << endl;
       return 0;
    }
    test1>>str; //retrieves string inputted to the file and stores it 
                        //as str( a character array)
    test.close();
    MagosX.com

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    Teach a man to fish and you feed him for a lifetime.

  8. #8
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    unable to save

  9. #9
    Confused Magos's Avatar
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    Originally posted by bc17
    unable to save
    Hm weird, outfiles rarely fail since if they exists they are overwritten, and if they don't exists they are created. Are you sure the folder (Program Files/Phonebook) exists?
    MagosX.com

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    Teach a man to fish and you feed him for a lifetime.

  10. #10
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    It's there, and if it wasn't then shouldn't it be created anyways?
    Last edited by bc17; 11-24-2002 at 01:05 PM.

  11. #11
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    I took out the ios:ut and the ios::in, then changed the file and folder names to be 8 characters or under(im using Borland Turbo C++ ver 3.0, a dos based compiler). That solved the problem

    Code:
    test.open("C:\\PB\\filename.txt");
    if(test.fail())
    {
       cout << "Unable to save!" << endl;
       return 0;
    }
    test<<data;  //inputs a string into the file data is a character array
    test.close();
    
    fstream test1;
    test1.open("C:\\PB\\filename.txt");
    if(test1.fail())
    {
       cout << "Unable to load!" << endl;
       return 0;
    }
    test1>>str; //retrieves string inputted to the file and stores it 
                        //as str( a character array)
    test.close();
    Last edited by bc17; 11-25-2002 at 11:26 AM.

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