c++ problem

[sithspawn]

Hey people,

I am writing a uni program and have encountered a bit of a problem. Ill set you up with a basis of what i am trying to do.

I am writing a simulator for a toll booth system. In this i am using a queue abstract to simulate the queues at the toll booth. The number of queues needs to be specified at run time. I am wondering if there is a way i can attatch a variable to the end of a name to make each queue unique.

Basically i want to do something like this:

for (int i = 1; i <= numQueues; i++)
{
QUEUE que&i;
que&i = createQueue();
}

The bit i am asking about is the &i part. i know this isnt the correct way to code this, if there is a correct way. But if anyone can give me an idea of what to do, it would be VERY helpful.

[Iron_Cross]

Use an array of queues. That way you can just refer to them by their index. I haven't used C++ in a while, in C# you'd use an ArrayList (an array that can have a variable number of elements), so I'm not sure if C++ has something similar.

Just add a new "toll booth" to the array for every toll booth you need.

[sithspawn]

yeah i was thinking about doing that. im not too clued up on arrays so i was hoping to be able to avoid that lol.

thanks for the tip

[Iron_Cross]

It's pretty simple. In C# (I know you're using C++, but i'm not too keen on that) You'd make the arraylist then just do something like:

ArrayList arrList = new ArrayList(10);
for(int i = 0; i < 10; i++){
arrList.Add(new Queue());
}
// then you'd access it like this
arrList[1].SomeMethod(); // do stuff with the second queue (since it's zero based)

arrList[4].SomeOtherMethod(); // do more stuff with the 5th queue
//etc

That's the basic idea.

[sithspawn]

thanks for that.

I ended up just biting the bullet and going for the array. its a whole lot neater. Instead of being full of if statements, its full of for statements lol.

thanks for the help works perfectly now