Function init_readdir_impl

src/directory.cpp:369–376

readdir_impl_t* readdir_impl_ptr = &readdir_select_impl;

void init_readdir_impl()
{
    readdir_impl_t* impl = &readdir_impl;
    if (::sysconf(_SC_THREAD_SAFE_FUNCTIONS) >= 0)
        impl = &readdir_r_impl;

    filesystem::detail::atomic_store_relaxed(readdir_impl_ptr, impl);
}

struct readdir_initializer
{