header_size       706 maint/gnulib/lib/bitset/array.c   size_t header_size = offsetof (union bitset_union, a.words);
header_size       711 maint/gnulib/lib/bitset/array.c   size_t bytes = header_size + size * sizeof (bitset_word);
header_size       714 maint/gnulib/lib/bitset/array.c   if (header_size % bitset_alignment != 0