pthread_create cpp wrapper

create_fun.hh

/**
 * @brief create_fun creates pthreads from void* (*)(P*) typed functions.
 * 
 * @param f function as void* (*)(P*) function pointer.
 * @param p parameter as P pointer.
 * 
 * @return possible error in thread creation, integer from pthread_create.
 */

template <typename F, typename P>
int create_fun(pthread_t* thread, const pthread_attr_t* attr, F* f, P* p) {
    void* (*fun)(void*) = reinterpret_cast<void* (*)(void*)>(f);
    void* param = static_cast<void*>(p);
    return pthread_create(thread, attr, fun, param);
}

template <typename F, typename P>
int create_fun(pthread_t* thread, F* f, P* p) {
    return create_fun(thread, nullptr, f, p);
}