#ifndef __BITMAP_H__
#define __BITMAP_H__

#ifndef HOST_LONG_BITS
#define HOST_LONG_BITS (sizeof(long) * 8)
#endif

#define bitmap_isset(bm,bit) \
    (!!bm[(bit) / HOST_LONG_BITS] & (1ULL << ((bit) % HOST_LONG_BITS)))
#define bitmap_set(bm,bit) \
    (bm[(bit) / HOST_LONG_BITS] |= (1ULL << ((bit) % HOST_LONG_BITS)))
#define bitmap_unset(bm,bit) \
    (bm[(bit) / HOST_LONG_BITS] &= ~(1ULL << ((bit) % HOST_LONG_BITS)))
#define DECLARE_BITMAP(bm,len) \
    unsigned long bm[((len) + HOST_LONG_BITS - 1) / HOST_LONG_BITS]
#define bitmap_clear(bm,len) \
    memset(bm, 0, (len + 7) / 8)
#define bitmap_fill(bm,len) \
    memset(bm, 0xFF, (len + 7) / 8)

#endif