Question

Possible Duplicate:
pthread Function from a Class

I am trying to create a thread with a start routine, but g++ does not like my syntax.

class myClass
{
  void* myFunction(void* myArg)
  {
    // some code, useless here
  }

  void start()
  {
    pthread_t thread_id;
    int* fd;

    //Some code, useless here.

    pthread_create(&thread_id, 0, &myFunction, (void*) fd);
  }
}

During compilator, g++ tells me that ISO C++ forbids taking the address of an unqualified or parenthesized non-static member function to form a pointer to member function. Say '&myFunction'.

It cannot convert void (myClass::*) (void*) to void* (*) (void*) for argument 3 of pthread_create.

Any idea ?

Answer 1

You’ll need to declare myFunction as static for it to be treated as a regular function.