[Dev-C++] RE: need help using cin.getline()

[<dA-Vin-G> <vin...@ed...>]

I dont really know if this is right or not, I'm still learning C++ but I think I can help at this problem of yours. I had experience in programming other languages and I hope it helps...

I actually debugged you code. It wasn't really the program's error but a LOGICAL ERROR - that is, the syntax is right, the compiler says it is right, but what it does is "wrong". Still with me?

My solution, I added the following line(s) to your code. Fortunately it worked. I hope this works...

char AbsorbKey[2];
cin.getline(AbsorbKey, 50);

I added them to the "void menu()" function. It now looks like this:

void menu() { 
    Book *storedBooks= new Book [20]; 
    unsigned short int counter=1; 

    int exit=1; 
    while(exit) { 
        unsigned short int menuChoice; 
        cout << "\n\n ***Welcome to the Library of
        E-Books***\n\n\n"; 
        cout << " (1) View Sample Book Info\n"; 
        cout << " (2) Store New Book Info\n"; 
        cout << " (3) Search Book Info\n"; 
        cout << " (4) Leave the Library\n\n\n"; 
        cout << " Enter Choice #: "; 
        cin >> menuChoice; 

        // This is what I added =>
        
        char AbsorbKey[2];
        cin.getline(AbsorbKey, 50); 
        
        // :~

        switch(menuChoice) { 

            //...

        }//end switch(menuChoice) 

        delete [] storedBooks; 

    }//end while loop 

}//end menu() 

Explanation:
I don't really know how or why it happened. I arrived at this solution because when I was debugging it (without the lines I added), I noticed that the first byte of bAuthor always changes to "/00" or simply a empty character. And then, it would pass the cin.getline() and assumed that there was already input from the user.

A hunch - a character that cant be read by "cin >> int" was passed to "cin.getline(char[], int)". The function thought that it had already recieved the input it needed.

I dont think this is the right explanation. But I hope it works for you... It worked for me



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