Stack of istreams

GAH! this is giving me gray hairs. how the jeef do i write a class for a stack of type istream? i don't need a template, since this is only to be used for istream.

here's the basic stuff i have written so far:

Code:

---

#ifndef _ISSTACK_H
#define _ISSTACK_H

#include <iostream.h>
#include <fstream.h>

class ISStack{
        private:
                int count_, size_;
                istream **stack_;
        public:
                ISStack();
                ISStack(const ISStack &);
                ~ISStack();
                void push(istream *);
                istream* pop();
                void increaseSize();
};

#endif;

---

count_ = the amount of stuff in the array
size_ = maximum amount of stuff in the array
istream ** stack_ = the array of pointers to istreams

i have a copy constructor so i can pass this array of pointers by value, if necessary. i have a destructor because it's a dynamic data structure that needs to be deallocated when i'm finished with it. as this stands, ISStack(), ISStack(const ISStack &), ~ISStack, void push(istream *), and void increaseSize() work. it's the pop() that i'm having a trouble with.

is there anyone on this board who has written a class for istream stacks, or knows where i can get a nice and simple one? hell, even a plain-old stack class is fine, as long as it is VERY EASILY modifiable to support istreams and can compile using g++ 2.95.

thanks in advance
edk

Hmm, is there any particular reason you can't use the standard C++ stack template? I'm pretty sure it would save you a lot of trouble. Just include the 'stack' header. Check a reference for usage, or just read through the header file itself. It's pretty easy to use. (g++ 2.95.x has this header, btw.)

I'd recommend using STL containers like vector, deque, map, and so on... They're very effective and modificable.

Ex:
vector<WhatEverClass*> V1;
V1.push_back(&object);

...and so on... see your help files.