代码

#include <iostream> // std::cout

#include <thread>   // std::thread

using namespace std;

void foo(int &a)

{

    cout<<"arguement:"<<a<<endl;

}



int main()

{

  int a=3;

  std::thread first (foo,a);

  first.join();



  return 0;

}

编译时出错

g++ a.cpp -std=c++11

In file included from d:\build chan tools\mingw48_32\lib\gcc\i686-w64-mingw32\4.8.0\include\c++\thread:39:0,

                 from a.cpp:2:

d:\build chan tools\mingw48_32\lib\gcc\i686-w64-mingw32\4.8.0\include\c++\functional: In instantiation of 'struct std::_Bind_simple<void (*())(int&)>':

d:\build chan tools\mingw48_32\lib\gcc\i686-w64-mingw32\4.8.0\include\c++\thread:137:47:   required from 'std::thread::thread(_Callable&&, _Args&& ...) [with _Callable = void (&)(int&); _Args = {}]'

a.cpp:11:25:   required from here

d:\build chan tools\mingw48_32\lib\gcc\i686-w64-mingw32\4.8.0\include\c++\functional:1697:61: error: no type named 'type' in 'class std::result_of<void (*())(int&)>'

       typedef typename result_of<_Callable(_Args...)>::type result_type;

                                                             ^

d:\build chan tools\mingw48_32\lib\gcc\i686-w64-mingw32\4.8.0\include\c++\functional:1727:9: error: no type named 'type' in 'class std::result_of<void (*())(int&)>'

         _M_invoke(_Index_tuple<_Indices...>)

对于c++的thread类使用引用作为线程函数参数，需要用std::ref()包括参数

  std::thread first (foo,std::ref(a));