指向成员函数错误的指针

Pointer to member function error

当我编译以下代码时,出现以下错误。谁能帮我解决这个问题。谢谢。

错误:ISO C++ 禁止使用绑定成员函数的地址来形成指向成员函数的指针。说‘&foo::abc’[-fpermissive]

boost::thread testThread(boost::bind(&f.abc, f));

................................................ .........^

#include <iostream>
#include <boost/asio.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/thread.hpp>

class foo
{
    private:

    public:
    foo(){}

    void abc()
    {
        std::cout << "abc" << std::endl;
    }
};

int main()
{
    foo f;

    boost::thread testThread(&f.abc, f);

    return 0;
}

错误信息再清楚不过了

Say ‘&foo::abc’

boost::thread testThread(boost::bind(&foo::abc, f));
//                                   ^^^^^^^

另外,不需要boost::bind,这个应该也可以

boost::thread testThread(&foo::abc, f);

请注意,这两者都会复制 f,如果您想避免使用以下任一方法

testThread(&foo::abc, &f);
testThread(&foo::abc, boost::ref(f));

现在,为什么 main()class zoo 的成员函数??

按照错误提示,将f.abc替换为foo::abc:

boost::thread testThread(boost::bind(&foo::abc, f));

使用:

    boost::thread testThread(boost::bind(&foo::abc, f));

照@Praetorian 说的去做。一切正常:

//Title of this code
//Compiler Version 18.00.21005.1 for x86

#include <iostream>
#include <boost/asio.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/thread.hpp>

class zoo;

class foo
{
    private:

    public:
    foo(){}

    void abc()
    {
        std::cout << "abc" << std::endl;
    }
};

class zoo
{
    public:
    int main()
    {
        foo f;

        boost::thread testThread(boost::bind(&foo::abc, &f));
        testThread.join();
        return 0;
    }
}; 

int main()
{
    zoo{}.main();
}

直播:http://rextester.com/XDE37483