-/* Element type.
-
- This must be an unsigned integer type at least as wide as int.
-
- Each bit represents one bit in the bitmap.
- If bit 0 in an element represents bit K in the bitmap,
- then bit 1 in the element represents bit K+1 in the bitmap,
- and so on. */
-typedef unsigned long elem_type;
-
-/* From the outside, a bitmap is an array of bits. From the
- inside, it's an array of elem_type (defined above) that
- simulates an array of bits. */
-struct bitmap
- {
- size_t bit_cnt; /* Number of bits. */
- elem_type *bits; /* Elements that represent bits. */
- };
-
-bool bitmap_init (struct bitmap *, size_t bit_cnt);