void *silc_srealloc_ua(SilcStack stack, SilcUInt32 old_size,
                           void *ptr, SilcUInt32 size);

    Same as silc_srealloc but reallocates unaligned memory.

    This function can be used to reallocate only unaligned memory
    allocated with silc_smalloc_ua.

    If `stack' is NULL this function calls silc_realloc.