是否可以将重载方法传递给std :: thread [英] Is it possible to pass overloaded method to std::thread

问题描述

我是线程技术的新手，我正尝试将重载方法传递给std :: thread，如下例所示

i am new to threading, i am trying to pass overloaded methods to std::thread like below example

#include <iostream>    
#include <thread>    

int do_calculation(int x)    
{    
   std::cout<<x;    
}    

float do_calculation(float x)    
{    
   std::cout<<x;    
}    

int main()    
{    
   std::thread t1(do_calculation,20);    
   std::thread t2(do_calculation,200.0f);    
   return 0;    
}

但是程序没有编译并抛出错误 no matching function for call to 'std::thread::thread(<unresolved overloaded function type>, int)' std::thread t1(do_calculation,20);

but the program is not compiling and throwing error that no matching function for call to 'std::thread::thread(<unresolved overloaded function type>, int)' std::thread t1(do_calculation,20);

有没有办法在线程中调用重载方法?

Is there a way to call overloaded methods in thread?

推荐答案

您将需要强制转换函数以解决重载:

You will need to cast the functions to resolve overloading:

std::thread t1(static_cast<int(*)(int)>(do_calculation),20);    
std::thread t2(static_cast<float(*)(float)>(do_calculation),200.0f);  

此外，您需要 join 或 detach 您的线程，以免冒险游玩std::terminate:

t1.join();
t2.join();

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