question about classes

I've written a class that is supposed to add songs to a cd track. I need to keep track of the number of songs added to the compact disc so I'm trying to implement a counter within a member function called AddTrack. I've set the counter to zero in the constructor - like other variables, but for some reason my counter starts out with a negative value even though I've set it to zero. Am I placing the counter in the right place? I have it declared in my private class.

Thanks for any suggestions.

post some code... maybe your calling your constructor wrong? try an unsigned int...

What type of variable is your counter? (Please say unsigned int or int, or even char) ((if you can't say that now, change it and then say it))

I am having problems with the variable named tot_time. I've used cout statements to debug and that's the only variable that is not initializing to zero. It's giving me something like 27000.

Do I need to keep the counter somewhere else? Maybe as a function somewhere? I've looked at this too long and I am stuck.

Thanks for any help or suggestions.

Here's my .cpp file.

Code:

---

// Constructor that initializes class CompactDisc 
CompactDisc::CompactDisc() {
  // initialize members
  name = " ";
  title = " ";
  artist = " ";
  seconds = 0;
  no_of_songs = 0;
  tot_time = 0;
  track = 0;
  total = 0;
}
// Function that adds track to cd
int CompactDisc::AddTrack(String na, int sec) {
  seconds = sec;
  name = na;
  tot_time = tot_time +  seconds;

  if ((tot_time >= 4440) || (no_of_songs > 10)) {
    tot_time = tot_time - seconds;
    return 0;
  }
  else {
    no_of_songs += 1;
    array[no_of_songs] = name;
    array_sec[no_of_songs] = seconds;
    return 1;
  }
}

---

Here's my .h file.

Code:

---

class CompactDisc {

public: 
  CompactDisc();  //constructor
  CompactDisc(String, String);  //constructor that takes artist and title of album
  int AddTrack(String, int);  //adds track and returns value of 1 if doesn't exceed limits
  void PrintTrack(int);  // accepts track number to print
  int  TrackCount();  //  returns # of tracks added to cd
  int track;  // counter for track # 
  int total;

private:
  String title; //title of album
  String artist;  //artist of album
  String name;  //name of song
  int seconds;  //time
  String array [10];  //  array to store songs for corresponding track #
  int array_sec[10];  //  array to store times for each song
  int tot_time;  //  counter for total time on compact disc
  int no_of_songs;  //  index for array that holds number of songs on compact disc
};

---

i just took a quick look... i can't see anything wrong except you didn't include the h file in the cpp file... looks like it should be working, unless i didn't see something or it has to do with some other code...

Code:

---

CompactDisc::CompactDisc() {
  // initialize members
  name = " ";
  title = " ";
  artist = " ";
  seconds = 0;
  no_of_songs = 0;
  tot_time = 0;
  track = 0;
  total = 0;
}

---

try this:

Code:

---

// Constructor that initializes class CompactDisc 
CompactDisc::CompactDisc() {
  // initialize members
  name[0] = NULL;
  title[0] = NULL;
  artist[0]= NULL;
  seconds = 0;
  no_of_songs = 0;
  tot_time = 0;
  track = 0;
  total = 0;
}

---

Thanks! I got my progrma to run. :)