数据结构——线性表（c 实现）

#include
#include
using namespace std;


class List
{
public:
	List(int size)
	{
		m_iSize = size;
		m_pList = new int[m_iSize];
		m_iLength = 0;
	}

	~List()
	{
		delete[]m_pList;
		m_pList = NULL;
	}

	void ClearList()
	{
		m_iLength = 0;
	}

	bool ListEmpty()
	{
		if (m_iLength == 0)
		{
			return true;
		}
		else
		{
			return false;
		}
	}

	int ListLength()
	{
		return m_iLength;
	}

	bool GetElem(int i, int* e)
	{
		if (i < 0 || i >= m_iSize)
		{
			return false;
		}
		*e = m_pList[i];
		return true;
	}

	int LocateElem(int* e)
	{
		for (int i = 0; i < m_iLength; i++)
		{
			if (m_pList[i] == *e)
			{
				return i;
			}
		}
		return -1;
	}

	bool PriorElem(int *currentElem, int *preElem)
	{
		int temp = LocateElem(currentElem);
		if (temp == -1)
		{
			return false;
		}
		else
		{
			if (temp == 0)
			{
				return false;
			}
			else
			{
				*preElem = m_pList[temp - 1];
				return true;
			}
		}
	}

	bool NextElem(int *currentElem, int *nextElem)
	{
		int temp = LocateElem(currentElem);
		if (temp == -1)
		{
			return false;
		}
		else
		{
			if (temp == m_iLength - 1)
			{
				return false;
			}
			else
			{
				*nextElem = m_pList[temp + 1];
				return true;
			}
		}
	}

	void ListTraverse()
	{
		for (int i = 0; i < m_iLength; i++)
		{
			cout << m_pList[i] << endl;
		}
	}

	bool ListInsert(int i, int *e)
	{
		if (i < 0 || i > m_iLength)
		{
			return false;
		}
		for (int k = m_iLength - 1; k >= i; k--)
		{
			m_pList[k + 1] = m_pList[k];
		}
		m_pList[i] = *e;
		m_iLength++;
		return true;
	}

	bool ListDelete(int i, int *e)
	{
		if (i < 0 || i >= m_iLength)
		{
			return false;
		}
		*e = m_pList[i];
		for (int k = i + 1; k < m_iLength; k++)
		{
			m_pList[k - 1] = m_pList[k];
		}


		m_iLength--;
		return true;
	}


private:
	int* m_pList;
	int m_iSize;
	int m_iLength;

};


int main(void)
{
	//3 5 7 2 9 1 8
	int e1 = 3;
	int e2 = 5;
	int e3 = 7;
	int e4 = 2;
	int e5 = 9;
	int e6 = 1;
	int e7 = 8;
	int temp = 0;
	List *list1 = new List(10);

	list1->ListInsert(0, &e1);
	list1->ListInsert(1, &e2);
	list1->ListInsert(2, &e3);
	list1->ListInsert(3, &e4);
	list1->ListInsert(4, &e5);
	list1->ListInsert(5, &e6);
	list1->ListInsert(6, &e7);



	list1->ListTraverse();
	
	list1->PriorElem(&e4, &temp);
	cout << "temp:" << temp << endl;

	list1->NextElem(&e4, &temp);
	cout << "temp:" << temp << endl;


	delete list1;

	system("pause");
	return 0;
}