C++ STL List队列用法（实例）

#include <iostream>
#include <list>
#include <numeric>
#include <algorithm>

using namespace std;

//创建一个list容器的实例LISTINT
typedef list<int> LISTINT;

//创建一个list容器的实例LISTCHAR
typedef list<char> LISTCHAR;

void main(void)
{
//--------------------------
//用list容器处理整型数据
//--------------------------
//用LISTINT创建一个名为listOne的list对象
LISTINT listOne;
//声明i为迭代器
LISTINT::iterator i;

//从前面向listOne容器中添加数据
listOne.push_front (2);
listOne.push_front (1);

//从后面向listOne容器中添加数据
listOne.push_back (3);
listOne.push_back (4);

//从前向后显示listOne中的数据
cout<<"listOne.begin()--- listOne.end():"<<endl;
for (i = listOne.begin(); i != listOne.end(); ++i)
cout << *i << " ";
cout << endl;

//从后向后显示listOne中的数据
LISTINT::reverse_iterator ir;
cout<<"listOne.rbegin()---listOne.rend():"<<endl;
for (ir =listOne.rbegin(); ir!=listOne.rend();ir++) {
cout << *ir << " ";
}
cout << endl;

//使用STL的accumulate(累加)算法
int result = accumulate(listOne.begin(), listOne.end(),0);
cout<<"Sum="<<result<<endl;
cout<<"------------------"<<endl;

//--------------------------
//用list容器处理字符型数据
//--------------------------

//用LISTCHAR创建一个名为listOne的list对象
LISTCHAR listTwo;
//声明i为迭代器
LISTCHAR::iterator j;

//从前面向listTwo容器中添加数据
listTwo.push_front ('A');
listTwo.push_front ('B');

//从后面向listTwo容器中添加数据
listTwo.push_back ('x');
listTwo.push_back ('y');

//从前向后显示listTwo中的数据
cout<<"listTwo.begin()---listTwo.end():"<<endl;
for (j = listTwo.begin(); j != listTwo.end(); ++j)
cout << char(*j) << " ";
cout << endl;

//使用STL的max_element算法求listTwo中的最大元素并显示
j=max_element(listTwo.begin(),listTwo.end());
cout << "The maximum element in listTwo is: "<<char(*j)<<endl;
}

#include <iostream>
#include <list>

using namespace std;
typedef list<int> INTLIST;

//从前向后显示list队列的全部元素
void put_list(INTLIST list, char *name)
{
INTLIST::iterator plist;

cout << "The contents of " << name << " : ";
for(plist = list.begin(); plist != list.end(); plist++)
cout << *plist << " ";
cout<<endl;
}

//测试list容器的功能
void main(void)
{
//list1对象初始为空
INTLIST list1;
//list2对象最初有10个值为6的元素
INTLIST list2(10,6);
//list3对象最初有3个值为6的元素
INTLIST list3(list2.begin(),--list2.end());

//声明一个名为i的双向迭代器
INTLIST::iterator i;

//从前向后显示各list对象的元素
put_list(list1,"list1");
put_list(list2,"list2");
put_list(list3,"list3");

//从list1序列后面添加两个元素
list1.push_back(2);
list1.push_back(4);
cout<<"list1.push_back(2) and list1.push_back(4):"<<endl;
put_list(list1,"list1");

//从list1序列前面添加两个元素
list1.push_front(5);
list1.push_front(7);
cout<<"list1.push_front(5) and list1.push_front(7):"<<endl;
put_list(list1,"list1");

//在list1序列中间插入数据
list1.insert(++list1.begin(),3,9);
cout<<"list1.insert(list1.begin()+1,3,9):"<<endl;
put_list(list1,"list1");

//测试引用类函数
cout<<"list1.front()="<<list1.front()<<endl;
cout<<"list1.back()="<<list1.back()<<endl;

//从list1序列的前后各移去一个元素
list1.pop_front();
list1.pop_back();
cout<<"list1.pop_front() and list1.pop_back():"<<endl;
put_list(list1,"list1");

//清除list1中的第2个元素
list1.erase(++list1.begin());
cout<<"list1.erase(++list1.begin()):"<<endl;
put_list(list1,"list1");

//对list2赋值并显示
list2.assign(8,1);
cout<<"list2.assign(8,1):"<<endl;
put_list(list2,"list2");

//显示序列的状态信息
cout<<"list1.max_size(): "<<list1.max_size()<<endl;
cout<<"list1.size(): "<<list1.size()<<endl;
cout<<"list1.empty(): "<<list1.empty()<<endl;

//list序列容器的运算
put_list(list1,"list1");
put_list(list3,"list3");
cout<<"list1>list3: "<<(list1>list3)<<endl;
cout<<"list1<list3: "<<(list1<list3)<<endl;

//对list1容器排序
list1.sort();
put_list(list1,"list1");

//结合处理
list1.splice(++list1.begin(), list3);
put_list(list1,"list1");
put_list(list3,"list3");
}