4.bind绑定

#include <iostream>
#include <string>
#include <boost/bind.hpp>
#include <boost/function.hpp>
#include <vector>
#include <algorithm>
#include <functional>
#include <stdlib.h>
using namespace std;
using namespace boost;


//function函数包装器
void mainC()
{
    //atoi  //char * to  int
    boost::function<int(char *)> fun = atoi;
    cout << fun("123") + fun("234") << endl;
    fun = strlen;
    cout << fun("123") + fun("234") << endl;
    cin.get();
}

//函数包装器指定某个参数
void mainD()
{
    boost::function<int(char *)> fun = atoi;
    cout << fun("123") + fun("234") << endl;
    fun = boost::bind(strcmp, "ABC", _1);
    cout << fun("123") << endl;
    cout << fun("ABC") << endl;
    cin.get();
}


//类中有绑定函数
class manager
{
public:
    //调用绑定的函数
    void allstart()
    {
        for (int i = 0; i < 15; i++)
        {
            if (workid)
            {
                workid(i);
            }
        }
    }

    //绑定调用
    void setcallback(boost::function<void(int)> newid)
    {
        workid = newid;
    }

public:
    //绑定一个函数
    boost::function<void(int)> workid;
};

//worker类
class worker
{
public:
    void run(int toid)
    {
        id = toid;
        cout << id << "工作" << endl;
    }
public:
    int id;
};


void main()
{
    manager m;
    worker w;

    //类的成员函数需要对象来调用
    //给manager类的成员函数绑定了一个默认的函数,以及对象
    m.setcallback(boost::bind(&worker::run, &w, _1));
    //调用
    m.allstart();
    cin.get();
}