File streaming, creating file problem

MaZtRHaXoR (20)
Hey there, i'm about to finish my program but i only have one problem,

first here is the code:



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char case2()
{
    goto b;
b:
    count=0;

    {

        cout<<"\n--------"<<endl;
        cout<<"BORROW BOOK";
        cout<<"\n--------"<<endl;

        ifstream si ("books.txt");
        if (si.is_open())
        {

            while (si.good())
            {


                getline(si,line1);
                for (size_t i = 0; i<line1.size(); i++) {
                    if (line1[i] == '#')
                        count++;

                }

            }

            si.close();

        }
        else
        {
            cout<<"There are no books available.";
        }
        sum=0;
        for(j=1; j<count+1; j++) {
            sum+=status[j];
        }

        if (sum==count)
        {
            cout<<"All the books were borrowed"<<endl;
            cout<<"\n\nDo you want another transaction? (Y/N) ";
            cin>>c;
            if (c=='y' || c=='Y') {
                system ("cls");
                mainmenu();
            }
            else
                exit (0);
        }
        else {
            cout<<"What would you like to borrow?\n"<<endl;
            ifstream so ("books.txt");
            if (so.is_open())
            {

                x=0;
                getline(so,line2[1],']');
                ifstream borrowed;
                borrowed.open(line2[1]+".txt");
                if (borrowed.is_open())
                {
                    while (borrowed.good())
                    {
                        status[1]=1;
                    }
                    borrowed.close();
                }
                else
                {
                    status[1]=0;
                }
                borrowed.close();
                if (status[1]==1) {
                    cout<<"[1]"<<line2[1]<<" - Borrowed"<<endl;
                }
                else
                {   cout<<"[1]"<<line2[1]<<" - Available"<<endl;
                }

                for (x=2; x<count+1; x++) {
                    getline(so,line3,'#');
                    getline(so,line4,'>');
                    getline(so,line2[x],']');
                    ifstream borrowed;
                    borrowed.open(line2[x]+".txt");
                    if (borrowed.is_open())
                    {
                        while (borrowed.good())
                        {
                            status[x]=1;
                        }
                        borrowed.close();
                    }
                    else
                    {
                        status[x]=0;
                    }
                    borrowed.close();
                    if (status[x]==1) {
                        cout<<"["<<x<<"]"<<line2[x]<<" - Borrowed"<<endl;
                    }
                    else
                    {   cout<<"["<<x<<"]"<<line2[x]<<" - Available"<<endl;
                    }


                }

                so.close();

            }

            if(count==0)
                cout<<"\n\nThere are no books available.\n\n";
            else if(count==1)
                cout<<"\n\nThere is 1 book available.\n\n";
            else
                cout<<"\n\nThere are "<<count<<" books available.\n\n";




            int booknumber;
            cout<<"Borrow book: ";
            cin>>booknumber;


            if(booknumber<1||booknumber>count) {
                cout<<"There is no such book in the system";
                cout<<"\n\nDo you want another transaction? (Y/N) ";
                cin>>c;
                if (c=='y' || c=='Y') {
                    system ("cls");
                    mainmenu();
                }
                else
                    exit (0);
            }
            else {
                system("cls");
                if (status[booknumber]==1)
                {

                    cout<<"Someone has already borrowed that book. Please choose another book."<<endl;
                    cout<<"\n\nDo you want another transaction? (Y/N) ";
                    cin>>c;
                    if (c=='y' || c=='Y') {
                        system ("cls");
                        mainmenu();
                    }
                    else
                        exit (0);
                }

                else if
                (status[booknumber]==0) {
                    cout<<"Thank you for borrowing!!\n";
                    status[booknumber]=1;
                    cout<<"\nBorrower's Name: ";
                    do {
                        getline(cin, p1.Name);
                    } while(p1.Name == "");
                    cout<<"\nEnter student Number: ";
                    do {
                        getline(cin, p1.Number);
                    } while(p1.Number == "");
                    cout<<"\nEnter student Course: ";
                    do {
                        getline(cin, p1.Course);
                    } while(p1.Course == "");
                    cout<<"\nEnter student Year: ";
                    do {
                        getline(cin, p1.Year);
                    } while(p1.Year == "");
                    ofstream filestream;
                    filestream.open(line2[booknumber]+".txt");
                    filestream<<"This book is borrowed by...\n";
                    filestream<<"\nBorrower's Name: "<<p1.Name;
                    filestream<<"\nStudent Number: "<<p1.Number;
                    filestream<<"\nStudent Course: "<<p1.Course;
                    filestream<<"\nStudent Year: "<<p1.Year;

                    filestream.close();
                }
            }
        }
        cout<<"\n\nDo you want another transaction? (Y/N) ";
        cin>>c;
        if (c=='y' || c=='Y') {
            system ("cls");
            mainmenu();
        }
        else
            exit (0);


    }
    _getch();
    return 0;
}


(pasted only a portion of the program because it wouldn't fit, ill post the whole code in the next post)

all of the problems i encountered is in case 2,
my last problem is on line 180, when i run the program it does not make the txt file which will be a problem because if i run the program again, it will check/search the folder for the similarly named text file and if it finds one that particular booked will be marked as borrowed, it has one instance that it creates a text file though, that is when this is the content of the books.txt

  Book name : Book Name 1
] Author name : Author 1
# Book number : 1

> Book name : Book Name 2
] Author name : Author 2
# Book number : 2


> Book name : Book Name 3
] Author name : Author 3
# Book number : 3

> Book name : Book Name 4
] Author name : Author 4
# Book number : 4

> Book name : Book Name 5
] Author name : Author 5
# Book number : 5


but when it creates the file, it will get "Book name : Book name 1" but since windows doesn't accept the : character in filenames, it will stop making the file. when i change the : character it won't create the text file.
help :(
Last edited on
MaZtRHaXoR (20)
remaining code:

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#include<conio.h>
#include<iostream>
#include<fstream>
#include<string>
#include<windows.h>
#include<vector>

using namespace std;


string line,line1,line3,line4;
char c;
int d,j,x;
int count=0;
vector<string> line2(100);
int status[100];
int sum;
void gotoxy (short row, short col)


{
    COORD coord = {row,col};
    SetConsoleCursorPosition ( GetStdHandle ( STD_OUTPUT_HANDLE ), coord );
}

struct book {
    string bname;
    string aname;
    string bnumber;
};
struct stud
{
    string Name;
    string Number;
    string Course;
    string Year;
};

stud p1;


char case1();
char case2();
char case3();
char mainmenu();

int main ()
{

    cout<< "\n\n\nWelcome to Library Books Management System\n\n\n";
    system ("pause");
    system ("cls");
    mainmenu();
    _getch();
    return 0;
}




char case1()
{
    {
        fstream si;
        si.open("books.txt");
        char buffer [225];
        ifstream fin("books.txt");
        if(fin)
        {
            char ff;
            while(fin.get(ff))
                cout<<ff;
        }
        fin.close();
        ofstream fout("books.txt",ios::app);
        if (!fout)
        {
            cout<<"unable to open for appending.\n";
            return (1);
        }
        int a,b,c=0;
        cout<<"\n--------"<<endl;
        cout<<"ADD BOOK";
        cout<<"\n--------"<<endl;
        cout<<"How many books will you add?: "<<endl;
        cin>>a;
        book p[300];
        for (b=0; b<a; b++) {
            cout<<endl;
            cout<<"Enter book name: ";
            do {
                getline (cin,p[b].bname);
            }
            while
            (p[b].bname =="");
            cout<<"Enter author name: ";
            do {
                getline (cin,p[b].aname);
            }
            while
            (p[b].aname =="");
            cout<<"Enter book number: ";
            cin>>p[b].bnumber;
        }
        cout<<"\n\nYou added "<<a<<" books\n\n";
        for (b=0; b<a; b++) {
            fout<<"> Book name: "<<p[b].bname<<endl;
            fout<<"] Author name: "<<p[b].aname<<endl;
            fout<<"# Book number: "<<p[b].bnumber<<endl;
            fout<<endl;


        }
        cin.ignore(0,'\n');
        cin.getline(buffer,225);
        fout<<buffer<<"\n";
        fout.close();
        fin.open("books.txt");
        if (!fin)
        {
            cout<<"Unable to open for reading.\n";
            return (1);
        }
        char ff;
        while (fin.get(ff))
            cout<<ff;
        fin.close();

        cout<<"\n\nDo you want another transaction? (Y/N) ";
        char character;
        cin>>character;
        if (character=='y' || character=='Y') {
            system ("cls");
            mainmenu();
        }
        else if (character=='n'||character=='N')
            exit(0);
        else if(character!='y'||character!='Y'||character!='n'||character!='N')
        {
            cout<<"pls..."<<endl<<"just answer yes or no..";
            system("pause");
        }
        else
            exit (0);


    }
    _getch();
    return 0;
}

//INSERT CASE2 CODE HERE//

char case3()
{
    {

        ifstream si ("books.txt");
        if (si.is_open())
        {
            while (si.good())
            {
                getline(si,line);
                cout<<line<<endl;
            }
            si.close();
        }
        else
        {
            cout<<"Unable to open file";
        }

        cout<<"\n\nDo you want another transaction? (Y/N) ";
        cin>>c;
        if (c=='y' || c=='Y') {
            system ("cls");
            mainmenu();
        }
        else
            exit (0);


    }
    _getch();
    return 0;
}

char mainmenu()
{
    cout<<"\n--------------------------------------------------------------------------------"<<endl;
    gotoxy (31,2);
    cout<<"Library Book System"<<endl;
    cout<<"--------------------------------------------------------------------------------"<<endl;
    cout<<"\n[1] Add book\n[2] Borrow book\n[3] Check available books\n[4] Quit";
    cout<<"\n\nSelect Transaction: ";
    cin>>d;
    system ("cls");
    book p[200];
    switch (d) {
    case 1:
        case1();
    case 2:
        case2();
    case 3:
        case3();
    case 4:
        exit (0);
        break;
    }
    _getch ();
    return 0;
}
MaZtRHaXoR (20)
BUMP :( Please help me my deadline is on January 5 :)
Last edited on
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