#include <iostream>
#include "ArrayList.h"

using namespace std;

void ArrayList::LInsert(const LData &data)
{
	if (numOfData > LIST_LEN) {
		cout << "저장이 불가능합니다" << endl;
		return;
	}

	arr[numOfData] = data;
	numOfData++;
}

bool ArrayList::LFirst(LData &data)
{
	if (numOfData == 0)
		return false;

	curPosition = 0;
	data = arr[0];
	return true;
}

bool ArrayList::LNext(LData &data)
{
	if (curPosition >= numOfData - 1)
		return false;

	curPosition++;
	data = arr[curPosition];
	return true;
}

LData ArrayList::LRemove()
{
	int rpos = curPosition;
	int num = numOfData;
	LData rdata = arr[rpos];

	for (int i = rpos; i < num - 1; i++) {
		arr[i] = arr[i + 1];
	}

	numOfData--;
	curPosition--;
	return rdata;
}

int ArrayList::LCount()
{
	return numOfData;
}