Passing a C++ function object to pthread_create function as the thread routine

Question

I know the thread routine that is passed to pthread_create API has the prototype of

void *threadproc(void *).

I was just wondering if it i

Answer 1

A pthread function must have C linkage, so it cannot be a member function. Strictly speaking, it cannot even be a static member function, even though that will work almost all the time.

So what should be done is to create a non-member function that takes a void* argument that will be a pointer to the C++ object to be the thread function. That function can cast the void* argument to a class pointer, which calls the member function.

See In C++, is it safe/portable to use static member function pointer for C API callbacks?