VMS Help POSIX Threads, PTHREAD routines, pthread_attr_getstackaddr_np, C Binding  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    #include <pthread.h>

    int
    pthread_attr_getstackaddr (
                const pthread_attr_t   *attr,
                void   **stackaddr,
                size_t   *size);