Thread: My compiler shuts down when I run this program...

I am using Turbo c++ 4.5, and everytime I run this program weird errors happen and sometimes it shuts down. Im going to replace the compiler but in the meantime I wanted to know if this program works for anyone else.

Code:

#include <iostream.h>
#include <string.h>

#ifndef BUFFER_H
#define BUFFER_H

//class Buffer
class Buffer {
public:
	Buffer();
	~Buffer();

	void Add(int Pos, char *b);
	void ClearBuff();
	void DisplayBuff();

private:
	char *a;
};

#endif

Buffer::Buffer()
{
	a = new char[1999];
}

Buffer::~Buffer()
{
	delete[] a;
}

void Buffer::Add(int Pos, char *b)
{
	int i = 0;

	for (i = 0; i < strlen(b); i++)
	{
		if (Pos+i > 1999 || Pos+i < 0)
			return;
		a[Pos+i] = b[i];
	}
}

void Buffer::ClearBuff()
{
	int i = 0;

	for (i = 0; i < 1999; i++)
		a[i] = ' ';
}

void Buffer::DisplayBuff()
{
	int i = 0;

	for (i = 0; i < 1999; i++)
		cout << a[i];
}

/******************************************************************************/

#ifndef ITEM_H
#define ITEM_H

// class Item
class Item {
public:
	Item();
	Item(char *a, float b);
	~Item();

	float GetPrice() { return Price; }
	char *GetName() { return Name; }

	void operator = (char *a);
	void operator = (float a) { Price = a; }

private:
	float Price;
	char *Name;
};

#endif

Item::Item(): Price(0.0f), Name(NULL)
{
}

Item::Item(char *a, float b): Price(b), Name(NULL)
{
	int i = 0;

	if (Name != NULL)
	{
		if (strlen(Name) == 1)
			delete Name;
		else
			delete[] Name;
	}

	Name = new char[ strlen(a) + 1 ];

	for (i = 0; i < strlen(a); i++)
		Name[i] = a[i];
}

Item::~Item()
{
	if (Name != NULL)
	{
		if (strlen(Name) == 1)
			delete Name;
		else
			delete[] Name;
	}
}

void Item::operator = (char *a)
{
	int i = 0;

	if (Name != NULL)
	{
		if (strlen(Name) == 1)
			delete Name;
		else
			delete[] Name;
	}

	Name = new char[ strlen(a) + 1];

	for (i = 0; i < strlen(a); i++)
		Name[i] = a[i];
}

/******************************************************************************/

int xytobuff(int x, int y);
void AddtoBuff(Buffer a, Item *b);

int main()
{
	Buffer a;
	Item b[5];

	b[0] = "Zanahoria";
	b[0] = 16.00;
	b[1] = "Papa";
	b[1] = 19.90;
	b[2] = "Cebolla";
	b[2] = 9.00;
	b[3] = "Pepino";
	b[3] = 12.50;
	b[4] = "Papaya";
	b[4] = 16.00;
	b[5] = "Sandia";
	b[5] = 26.90;

	a.ClearBuff();
	AddtoBuff(a, b);
	a.DisplayBuff();

	return 0;
}

int xytobuff(int x, int y)
{
	return x + y * 80;
}

void AddtoBuff(Buffer a, Item *b)
{
	int x = 5, y = 1;
	int i = 0;

	while (i < 5)
	{
		a.Add(xytobuff(x, y), b[i].GetName());
		y++;
		i++;
	}
}

I know somethings look stupid but I was just messing around triying to fix it, maybe sometimes I dont free the memory or something like that.