C++ Lists: A Simple List Of Items

This example illustrates a simple list of items such as a list of integers, characters, etc.

Header File: List.h

//---------------------------------------------------------------------------
#ifndef ListH
#define ListH
//---------------------------------------------------------------------------
const int MaxItems = 100;
typedef double ItemType;

class FList
{
public:
    FList();
    virtual ~FList();
    int Count() const;
    bool Add(const ItemType NewItem);
    ItemType Retrieve(const int Pos);
    bool Delete(const int Pos);

private:
    int Counter;
    ItemType Item[MaxItems];
    const Index(const int Pos) const;
};
//---------------------------------------------------------------------------
#endif

Source File: List.cpp

//---------------------------------------------------------------------------
#pragma hdrstop

#include "List.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
FList::FList()
    : Counter(0)
{
}
//---------------------------------------------------------------------------
FList::~FList()
{
}//---------------------------------------------------------------------------
int FList::Count() const
{
    return Counter;
}
//---------------------------------------------------------------------------
const FList::Index(const int Pos) const
{
    return Pos-1;
}
//---------------------------------------------------------------------------
bool FList::Add(const ItemType NewItem)
{
    if( (Counter < 0) || (Counter > MaxItems) )
        return false;
    else
    {
        Item[Counter] = NewItem;
        Counter++;
        return true;
    }
}
//---------------------------------------------------------------------------
ItemType FList::Retrieve(const int Pos)
{
    if( (Pos < 0) || (Pos > Counter) )
        return 0;
    else
        return Item[Pos];
}
//---------------------------------------------------------------------------
bool FList::Delete(const int Pos)
{
    if( (Pos < 0) || (Pos > Counter) )
        return false;
    else
    {
        for(int i = Pos+1; i <= Counter; i++)
            Item[Index(i-1)] = Item[Index(i)];
        Counter--;
        return true;
    }
}
//---------------------------------------------------------------------------

Source File: Main.cpp

//---------------------------------------------------------------------------
#include <iostream>
#include <conio>
using namespace std;
#pragma hdrstop
#include "List.h"
//---------------------------------------------------------------------------

#pragma argsused
int main(int argc, char* argv[])
{
    FList List;

    List.Add(1240.42);
    List.Add(283.15);
    List.Add(42.48);
    List.Add(582.12);
    List.Add(60.14);
    List.Add(8022.28);

    cout << "List of items";
    for(int i = 0; i < List.Count(); i++)
        cout << "\nItem No." << i + 1 << ": " << List.Retrieve(i);
    cout << "\nNumber of items: " << List.Count() << " items\n\n";

    List.Delete(5);
    List.Delete(2);
    cout << "List of items";
    for(int i = 0; i < List.Count(); i++)
        cout << "\nItem No." << i + 1 << ": " << List.Retrieve(i);
    cout << "\nNumber of items: " << List.Count() << " items\n\n";

    cout << "Press any key to continue...";
    getch();
    return 0;
}
//---------------------------------------------------------------------------