Question

C++ STL list 中对结构体的remove方法的使用

代码如下：程序编译报错，请高手解决！
#include <iostream>
#include <list> //使用list队列添加的头文件
using namespace std; //使用命名空间std
struct student{
char* name; //姓名
int age; //年龄
char* city; //城市
char* tel; //电话
};
int main()
{
student s[] = {
{"Xu",10,"Beijing","88888888"},
{"Zhang",12,"Shanghai","22222222"},
{"He",15,"Guangzhou","11111111"}
};
// 装入链表数据
list<student> l;
l.push_back(s[0]);
l.push_back(s[1]);
l.push_back(s[2]);
student li = {"Li",15,"Guangzhou","11111111"};
//元素头部插入
l.push_front(li); // 头部插入元素Li,15,Guangzhou,11111111
//元素尾部插入
student lend = {"Wang",18,"Wuhan","33333333"};
l.push_back(lend);

// remove的使用，这里不知道该如何填写，例如我要删除："Wang",18,"Wuhan","33333333这条
//该如何写remvoe方法呢？
// 请高手在这里加上代码

//遍历打印链表
list<student>::iterator i,iend;
iend = l.end();
cout<<"姓名 年龄 城市 电话"<<endl;
cout<<"--------------------------------"<<endl;
for(i=l.begin();i!=iend;i++){
cout<<(*i).name<<" ";
cout<<(*i).age<<" ";
cout<<(*i).city<<" ";
cout<<(*i).tel<<" "<<endl;
}
cout<<"--------------------------------"<<endl;
return 0;
}

Answer 1

给：

#include <iostream>
#include <list>   //使用list队列添加的头文件
using namespace std;               //使用命名空间std
struct student{
 char* name;  //姓名
 int age;     //年龄
 char* city;  //城市
 char* tel;   //电话
};
int main()
{
 student s[] = {
  {"Xu",10,"Beijing","88888888"},
        {"Zhang",12,"Shanghai","22222222"},
        {"He",15,"Guangzhou","11111111"}
 };
 // 装入链表数据
 list<student> l;
 l.push_back(s[0]);
 l.push_back(s[1]);
 l.push_back(s[2]);
 student li = {"Li",15,"Guangzhou","11111111"};
 //元素头部插入
 l.push_front(li); // 头部插入元素Li,15,Guangzhou,11111111
 //元素尾部插入
 student lend = {"Wang",18,"Wuhan","33333333"};  
  l.push_back(lend);

//加的代码******************************************
 list<student>::iterator iter;
 for( iter=l.begin();iter!=l.end();++iter)
 {
 		if( !strcmp(iter->name,"Wang"))
 			iter = l.erase(iter);
 }
 
 //遍历打印链表
 list<student>::iterator i,iend;
 iend = l.end();
  cout<<"姓名    年龄    城市    电话"<<endl;
 cout<<"--------------------------------"<<endl;
 for(i=l.begin();i!=iend;i++){
  cout<<(*i).name<<"      ";
        cout<<(*i).age<<"     ";
  cout<<(*i).city<<"    ";
     cout<<(*i).tel<<"     "<<endl;
 }
 cout<<"--------------------------------"<<endl;
 return 0;
}

Answer 2

C/C++ code

// remove_if example使用list队列添加的头文件

#include <iostream>
#include <algorithm>
using namespace std;

bool IsOdd (int i) { return ((i%2)==1); }
int main () {
int myints[] = {1,2,3,4,5,6,7,8,9}; // 1 2 3 4 5 6 7 8 9
// bounds of range:
int* pbegin = myints; // ^
int* pend = myints+sizeof(myints)/sizeof(int); // ^ ^
pend = remove_if (pbegin, pend, IsOdd); // 2 4 6 8 ? ? ? ? ?
// ^ ^
cout << "range contains:";
for (int* p=pbegin; p!=pend; ++p)
cout << " " << *p;
cout << endl;
return 0;
}

Answer 3

C/C++ code

// remove_if example

#include <iostream>
#include <algorithm>
using namespace std;

bool IsOdd (int i) { return ((i%2)==1); }
int main () {
int myints[] = {1,2,3,4,5,6,7,8,9}; // 1 2 3 4 5 6 7 8 9
// bounds of range:
int* pbegin = myints; // ^
int* pend = myints+sizeof(myints)/sizeof(int); // ^ ^
pend = remove_if (pbegin, pend, IsOdd); // 2 4 6 8 ? ? ? ? ?
// ^ ^
cout << "range contains:";
for (int* p=pbegin; p!=pend; ++p)
cout << " " << *p;
cout << endl;
return 0;
}