从另一个类的成员函数的类中的线程

Question

有人能告诉我怎样才能运行一个新的线程与成员函数从不同类的对象作为这个类的成员函数？什么即时尝试做我仍然得到错误。

no match for call to '(std::thread) (void (Boo::*)(), Boo&)'|
no match for call to '(std::thread) (void (Foo::*)(), Foo*)'|

#include <iostream> 
#include <thread> 
using namespace std; 
class Boo 
{ 
public: 
    void run() 
    { 
     while(1){} 
    } 
}; 

class Foo 
{ 
public: 
    void run() 
    { 
     t1(&Boo::run,boo); 
     t2(&Foo::user,this); 
    } 
    void user(); 
    ~Foo(){ 
     t1.join(); 
     t2.join(); 
    } 
private: 
    std::thread t1; 
    std::thread t2; 
    Boo boo; 
}; 
int main() 
{ 
    Foo foo; 
    foo.run(); 
} 

Answer 1

您需要使用operator=到建设

以下工作示例（see it in action）后分配线程：

#include <thread> 
#include <iostream> 

class Boo 
{ 
public: 
    void run() 
    { 
     int i = 10; 
     while(i--) 
     { 
      std::cout << "boo\n";; 
     } 
    } 
}; 

class Foo 
{ 
public: 
    void run() 
    { 
     t1 = std::thread(&Boo::run,boo); // threads already default constructed 
     t2 = std::thread(&Foo::user,this); // so need to *assign* them 
    } 

    void user() 
    { 
     int i = 10; 
     while(i--) 
     { 
      std::cout << "foo\n";; 
     } 
    } 

    ~Foo() 
    { 
     t1.join(); 
     t2.join(); 
    } 

private: 
    std::thread t1; 
    std::thread t2; 
    Boo boo; 
}; 

int main() 
{ 
    Foo foo; 
    foo.run(); 
}