The error c3867 about a void* parameter

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VS2005

C++

Visual-Studio

, +

I have a thread class at vs2005

C++

m_hThread = (HANDLE)_beginthreadex(NULL,0, CThreadClass::start_address, this, 0,  &m_Thraddr)

There is a error C3867:

"CThreadClass::start_address": function lost function list.

C++

Unsigned CThreadClass::start_address(void* obj)
{ 
  return FALSE; 
}

Could you tell me how can I cover this error?

I referee from the blog http://www.cppblog.com/API/archive/2011/03/11/141563.html[^]

But I don't want a static class function.

Posted 3-Jun-15 23:03pm

JinxLeader

Updated 3-Jun-15 23:33pm

v4

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2 solutions

Solution 2

You can't pass a pointer to a member function as the routine to the _beginthread() function. The function requires a pointer to a global or static function.

Posted 4-Jun-15 0:02am

Leo Chapiro

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Jochen Arndt · Accepted Answer · 2015-06-04T00:28:00

Thread functions must be static. But you can use a static wrapper function that calls a non-static member function when passing a pointer to your class:

CThreadClass
{
    // ...
    void start_thread();
private::
    // Static thread function
    unsigned __stdcall start_address(void* obj);
    // Non-static function called from static version
    unsigned thread_func();
};

C++

void CThreadClass::start_thread()
{
    m_hThread = (HANDLE)_beginthreadex(NULL,0, &CThreadClass::start_address, this, 0,  &m_Thraddr);
}

// Static thread function
unsigned CThreadClass::start_address(void* obj)
{
    CThreadClass *p = (CThreadClass *)obj;
    return p->thread_func();
}

// Non-static function called from static thread function
unsigned CThreadClass::thread_func()
{
    // Do your work here using the class's member variables and functions
    return FALSE;
}