关于for_each的使用

[qq342634980]

class Door {
public:
void open() const {
cout << "open door horizontally" << endl;
}

void close() const {
cout << "close door horizontally" << endl;
}
};

class DoorController {
protected:
vector<Door> _doorVec;

public:
void addDoor(Door aDoor) {
_doorVec.push_back(aDoor);
}

void openDoor() const {
for_each(_doorVec.begin(), _doorVec.end(), mem_fun_ref(&Door::open));
}
};

void main() {
DoorController dc;
dc.addDoor(Door());
dc.addDoor(Door());
dc.openDoor();
}
报错'mem_fun_ref' : cannot convert parameter 1 from 'void (__thiscall Door::*)(void) const' to 'void (__thiscall Door::*)(void)'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast，是什么问题？

[無_1024]

发了两遍了 这个函数你自己实现的时候参数类型不统一

[LAIER903]

for_each()?这个函数是自己写的吗？

[pengzhixi]

vs2008 和dev-cpp都没问题

[qq120848369]

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

class Door 
{
public:
	void open() const 
	{
		cout << "open door horizontally" << endl;
	}

	void close() const
	{
		cout << "close door horizontally" << endl;
	}
};

class DoorController 
{
protected:

	vector<Door> _doorVec;

public:
	void addDoor(Door aDoor) 
	{
		_doorVec.push_back(aDoor);
	}

	void openDoor() const 
	{
		for_each(_doorVec.begin(), _doorVec.end(), mem_fun_ref(&Door::open));
	}
};

int main()
{
	DoorController dc;
	dc.addDoor(Door());
	dc.addDoor(Door());
	dc.openDoor();

	return 0;
}

VC2008无压力，本来就应该用const版本的。

[苍蝇①号]

在g++下面没有问题的

[luciferisnotsatan]

[Quote=引用 2 楼 laier903 的回复:]

for_each()?这个函数是自己写的吗？
[/Quote]
for_each是标准库提供的算法

楼主你用的是什么编译器？