本文实例为大家分享了C++实现顺序表的具体代码，供大家参考，具体内容如下
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#include <iostream>
using namespace std;
typedef int DataType;
class SeqList
{
public:
SeqList()
:_a(NULL)
, _size(0)
, _capacity(0)
{}
SeqList(const SeqList& s)
:_a(new DataType[s._size])
, _size(s._size)
, _capacity(s._capacity)
{
memcpy(_a, s._a, sizeof(DataType)*s._size);
}
SeqList& operator=(const SeqList& s)
{
if (this != &s)
{
DataType* tmp = new DataType[s._size];
delete[] _a;
_a = tmp;
memcpy(_a, s._a, sizeof(DataType)*s._size);
_size = s._size;
_capacity = s._capacity;
}
return *this;
}
//SeqList& operator=(SeqList s) //若传引用会改变引用对象的值
//{
// swap(_a, s._a);
// swap(_size, s._size);
// swap(_capacity, s._capacity);
// return *this;
//}
~SeqList()
{
if (_a)
{
delete[] _a;
}
}
void PushBack(DataType d)
{
CheckCapacity();
_a[_size] = d;
_size++;
}
void PopBack()
{
if (_size > 0)
{
_size--;
}
else
{
cout << "顺序表为空" << endl;
}
}
void PushFront(DataType d)
{
CheckCapacity();
int i = (int)_size;
for (; i > 0; i--)
{
_a[i] = _a[i - 1];
}
_a[0] = d;
++_size;
}
void PopFront()
{
if (_size > 0)
{
int i = 0;
for (; i < (int)_size; i++)
{
_a[i] = _a[i + 1];
}
_size--;
}
else
{
cout << "顺序表为空" << endl;
}
}
void Print()
{
if (_size > 0)
{
int i = 0;
for (; i < (int)_size; i++)
{
cout << _a[i] << " ";
}
cout << endl;
}
else
{
cout << "顺序表为空" << endl;
}
}
void Insert(size_t pos, DataType d) //在pos之前插入一个数据
{
CheckCapacity();
if (_size > 0)
{
if (pos <= 0 || pos > _size)
{
cout << "pos位置非法" << endl;
}
else
{
int i = 0;
for (i = (int)_size + 1; i > pos - 1; i--)
{
_a[i] = _a[i - 1];
}
_a[pos - 1] = d;
_size++;
}
}
else
{
PushFront(d);
}
}
void Erase(size_t pos) //删除pos位置的数据
{
if (_size > 0)
{
if (pos <= 0 || pos > _size)
{
cout << "pos位置非法" << endl;
}
else
{
int i = pos - 1;
for (; i < (int)_size; i++)
{
_a[i] = _a[i + 1];
}
_size--;
}
}
else
{
cout << "顺序表为空,无法进行删除" << endl;
}
}
int Find(DataType d)
{
int i = 0;
for (; i < (int)_size; i++)
{
if (_a[i] == d)
{
return i + 1;
}
}
return 0;
}
private:
void CheckCapacity()
{
if (_size == _capacity)
{
_capacity = _capacity * 2 + 3;
_a = (DataType*)realloc(_a, sizeof(DataType)*_capacity);
}
}
private:
DataType* _a;
size_t _size;
size_t _capacity;
};
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以下为测试函数
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#include "SeqList.h";
void Test1()
{
SeqList s1;
s1.PushBack(1);
s1.PushBack(2);
s1.PushBack(3);
s1.PushBack(4);
s1.Print();
SeqList s2(s1);
s2.Print();
s2.PopBack();
s2.PopBack();
s2.PopBack();
s2.PopBack();
s2.PopBack();
s2.Print();
s2.PushFront(4);
s2.PushFront(3);
s2.PushFront(2);
s2.PushFront(1);
s2.Print();
s2.PopFront();
s2.Print();
s2.PopFront();
s2.PopFront();
s2.PopFront();
s2.PopFront();
s2.PopFront();
SeqList s3;
s3 = s1;
s3.Print();
}
void Test2()
{
SeqList s1;
s1.PushBack(1);
s1.PushBack(2);
s1.PushBack(3);
s1.PushBack(4);
s1.Print();
//s1.Insert(1, 0);
//s1.Print();
/*s1.Erase(1);
s1.Erase(1);
s1.Erase(1);
s1.Erase(1);
s1.Print();*/
int i = s1.Find(5);
cout << i << endl;
}
int main()
{
//Test1();
Test2();
system("pause");
return 0;
}
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://blog.csdn.net/tttjp/article/details/69663442