Dynamic directory names

This is a discussion on Dynamic directory names within the C++ Programming forums, part of the General Programming Boards category; There is a precise order to things. You're basically expecting this to work a = myvar + 2; cin >> ...

  1. #16
    and the hat of wrongness Salem's Avatar
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    There is a precise order to things.

    You're basically expecting this to work
    a = myvar + 2;
    cin >> myvar; // type in 5
    // here you're expecting a to be 5 + 2, and it simply isn't going to happen.

    Read strings in, THEN build them up with your other data.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

  2. #17
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    Question

    Like I said, I'm somewhat new to this, so if theres something that should be placed different, please tell me (I'm not taking any classes, so no, I'm not trying to cheat).

    Here's what I've got after some minor modification:

    Code:
    #include <iostream>
    #include <fstream>
    #include <sys/stat.h>
    #include <unistd.h>
    #include <stdio.h>
    
    using namespace std;
    
    int main()
    {
        std::string newusername;
        std::string newuserpassword;
    
        {
         
        cout<<"Please enter a user name to use (one word only, 30 letters): ";
        cin>>newusername;
        cin.ignore();
        
        cout<<"\n"<<newusername<<" is now being used as your username.\n\n";
        cout<<"Enter a password to use for "<<newusername<<"'s account: ";
        cin>>newuserpassword;
        cin.ignore();
        
        cout<<"\nPlease wait while your account ('"<<newusername<<"') is created...";
        cout<<"\n\nCreating User Folder...";
        
        mkdir("C:/Program Files/MUMS/");
        std::string newDir="C/Program Files/MUMS/"+newusername;
        mkdir(newDir.c_str());
        
        cout<<"\nCreating Username File...";
        
        std::string unfile="C:/Program Files/MUMS/";
        unfile+=newusername;
        unfile+="/username.mums";
        
        ofstream usernamecreate;
        usernamecreate.open(unfile.c_str());
        usernamecreate<<newusername<<endl;
        usernamecreate.close();
            
        cout<<"\n"<<newusername<<"'s User Name file successfully created!...";
        
        cout<<"\nCreating Password File...";
    
        std::string pfile="C:/Program Files/MUMS/";
        pfile+=newusername;
        pfile+="/password.mums";
        
        ofstream userpasswordcreate;
        userpasswordcreate.open(pfile.c_str());
        userpasswordcreate<<newuserpassword<<endl;
        userpasswordcreate.close();
        
        cout<<"\n"<<newusername<<"'s Password saved successfully!...";
        
        cout<<"\n\nDone!";
        cout<<"\n\nYour User Name is '"<<newusername<<"' and your password is '"<<newuserpassword<<"'.\n"
              "Make sure that you know these, as there is no way of retirieving\nthis information.";
        cin.get();
        }
    }

  3. #18
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    Can anybody at least give me a clue...?

    FlyingIsFun1217

  4. #19
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    >> Can anybody at least give me a clue...?
    Do you have a question?

  5. #20
    Reverse Engineer maxorator's Avatar
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    Quote Originally Posted by Daved
    >> Can anybody at least give me a clue...?
    Do you have a question?
    I think his question is "What should I do?"
    "The Internet treats censorship as damage and routes around it." - John Gilmore

  6. #21
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    Precisely

    I have looked and looked, but just can't see where I screwed up...

    FlyingIsFun1217

  7. #22
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    What is the problem? What is not working? Your original problem is fixed, so all I see is code that looks fine at first glance. Does it fail to compile? Does it fail to do what you want it to? Explain what you want help with.

  8. #23
    and the hat of wrongness Salem's Avatar
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    Well I did this
    Code:
        std::string newDir="C/Program Files/MUMS/"+newusername;
        int err = mkdir(newDir.c_str());
        cout << err << endl;
    Which printed
    Creating User Folder...-1

    So I looked at what you were doing, and pretty soon spotted something missing
    Code:
    std::string newDir="C:/Program Files/MUMS/"+newusername;
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

  9. #24
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    Wow... talk about feeling really stupid!

    Thanks everybody for helping me on this... I have now completed a somewhat large chunk of my very large (to me) planned program!

    Thanks again to everybody who was patient to me

    FlyingIsFun1217

  10. #25
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    Here we go again (bump...)

    I've now tried to combine this with another program that I have, basically to encrypt and decrypt a password for saving in a file.

    Heres what I have:

    Code:
    #include <iostream>
    #include <fstream>
    #include <sys/stat.h>
    #include <unistd.h>
    #include <stdio.h>
    
    using namespace std;
    
    int main()
    {
        std::string newusername;
        std::string newuserpassword;
    
        {
    
        cout<<"Please enter a user name to use (one word only, 30 letters): ";
        cin>>newusername;
        cin.ignore();
    
        cout<<"\n"<<newusername<<" is now being used as your username.\n\n";
        cout<<"Enter a password to use for "<<newusername<<"'s account: ";
        cin>>newuserpassword;
        cin.ignore();
    
        cout<<"\nPlease wait while your account ('"<<newusername<<"') is created...";
        cout<<"\n\nCreating User Folder...";
    
        mkdir("C:/Program Files/MUMS/");
        std::string newDir="C:/Program Files/MUMS/"+newusername;
        mkdir(newDir.c_str());
    
        cout<<"\nCreating Username File...";
    
        std::string unfile="C:/Program Files/MUMS/";
        unfile+=newusername;
        unfile+="/username.mums";
    
        ofstream usernamecreate;
        usernamecreate.open(unfile.c_str());
        usernamecreate<<newusername<<endl;
        usernamecreate.close();
    
        cout<<"\n"<<newusername<<"'s User Name file successfully created!...";
    
        cout<<"\nCreating Password File...";
    
        std::string pfile="C:/Program Files/MUMS/";
        pfile+=newusername;
        pfile+="/password.mums";
    
        ofstream userpasswordcreate;
        userpasswordcreate.open(pfile.c_str());
    
        void encode(std::string& pass) {
    
        for (unsigned int i = 0; i != pass.size(); ++i) {
            pass.at(i) += 7;
            }
        }
    
        encode(newuserpassword);
    
        userpasswordcreate<<newuserpassword<<endl;
        userpasswordcreate.close();
    
        void decode(std::string& code) {
    
        for (unsigned int i = 0; i != code.size(); ++i) {
            code.at(i) -= 7;
            }
        }
    
        decode(newuserpassword);
    
        cout<<"\n"<<newusername<<"'s Password saved successfully!...";
    
        cout<<"\n\nDone!";
        cout<<"\n\nYour User Name is '"<<newusername<<"' and your password is '"<<newuserpassword<<"'.\n"
              "Make sure that you know these, as there is no way of retirieving\nthis information.";
        cin.get();
        }
    }
    Thanks for the help,

    FlyingIsFun1217

    ------------EDIT------------
    Nevermind, I moved the voids...

    I really have to start thinking of these things before I post...

    FlyingIsFun1217
    Last edited by FlyingIsFun1217; 11-11-2006 at 04:19 AM.

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