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/* -*- C++ -*- */
// $Id$
#if defined (ACE_USES_ACE_U_LONGLONG)
ACE_INLINE
ACE_U_LongLong::ACE_U_LongLong (const ACE_UINT32 lo, const ACE_UINT32 hi)
: hi_ (hi), lo_ (lo)
{
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::hi (void) const
{
return hi_;
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::lo (void) const
{
return lo_;
}
ACE_INLINE void
ACE_U_LongLong::hi (const ACE_UINT32 hi)
{
hi_ = hi;
}
ACE_INLINE void
ACE_U_LongLong::lo (const ACE_UINT32 lo)
{
lo_ = lo;
}
ACE_INLINE
ACE_U_LongLong::~ACE_U_LongLong (void)
{
}
ACE_INLINE int
ACE_U_LongLong::operator== (const ACE_U_LongLong &n) const
{
return hi_ == n.hi_ && lo_ == n.lo_;
}
ACE_INLINE int
ACE_U_LongLong::operator!= (const ACE_U_LongLong &n) const
{
return ! (*this == n);
}
ACE_INLINE int
ACE_U_LongLong::operator< (const ACE_U_LongLong &n) const
{
return hi_ < n.hi_ ? 1
: hi_ > n.hi_ ? 0
: lo_ < n.lo_;
}
ACE_INLINE int
ACE_U_LongLong::operator<= (const ACE_U_LongLong &n) const
{
return hi_ < n.hi_ ? 1
: hi_ > n.hi_ ? 0
: lo_ <= n.lo_;
}
ACE_INLINE int
ACE_U_LongLong::operator> (const ACE_U_LongLong &n) const
{
return hi_ > n.hi_ ? 1
: hi_ < n.hi_ ? 0
: lo_ > n.lo_;
}
ACE_INLINE int
ACE_U_LongLong::operator>= (const ACE_U_LongLong &n) const
{
return hi_ > n.hi_ ? 1
: hi_ < n.hi_ ? 0
: lo_ >= n.lo_;
}
ACE_INLINE
ACE_U_LongLong::ACE_U_LongLong (const ACE_U_LongLong &n)
: hi_ (n.hi_),
lo_ (n.lo_)
{
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator= (const ACE_U_LongLong &n)
{
hi_ = n.hi_;
lo_ = n.lo_;
return *this;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator+ (const ACE_U_LongLong &n) const
{
ACE_U_LongLong ret (lo_ + n.lo_, hi_ + n.hi_);
if (ret.lo_ < n.lo_) /* carry */ ++ret.hi_;
return ret;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator- (const ACE_U_LongLong &n) const
{
ACE_U_LongLong ret (lo_ - n.lo_, hi_ - n.hi_);
if (lo_ < n.lo_) /* borrow */ --ret.hi_;
return ret;
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator/ (const ACE_UINT32 n) const
{
// This takes advantage of the fact that the return type has only 32
// bits. Replace 0x100000000 with 0xffffffff + 1 because the latter
// has 33 bits.
// Quotient = (0x100000000u * hi_ + lo_) / n
// = ((0x100000000u - n + n) * hi_ + lo_) / n
// = ((0x100000000u - n) / n * hi_ + hi_ * n / n + lo_ / n
// = (0x100000000u - n) / n * hi_ + hi_ + lo_ / n
// = (0xffffffffu - n + 1) / n * hi_ + hi_ + lo_ / n
return (0xffffffffu - n + 1) / n * hi_ + hi_ + lo_ / n;
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator% (const ACE_UINT32 n) const
{
// Because the argument is an ACE_UINT32, the result can never be
// bigger than 32 bits. Replace 0x100000000 with 0xffffffff + 1
// because the latter has 33 bits.
// Mod = (0x100000000u * hi_ + lo_) % n
// = (0x100000000u % n * hi_ + lo_ % n) % n
// = ((0x100000000u - n) % n * hi_ + lo_ % n) % n
// = ((0xffffffffu - n + 1) % n * hi_ + lo_ % n) % n
return ((0xffffffff - n + 1) % n * hi_ + lo_ % n) % n;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator+= (const ACE_U_LongLong &n)
{
hi_ += n.hi_;
lo_ += n.lo_;
if (lo_ < n.lo_) /* carry */ ++hi_;
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator-= (const ACE_U_LongLong &n)
{
hi_ -= n.hi_;
if (lo_ < n.lo_) /* borrow */ --hi_;
lo_ -= n.lo_;
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator++ ()
{
++lo_;
if (lo_ == 0) /* carry */ ++hi_;
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator-- ()
{
if (lo_ == 0) /* borrow */ --hi_;
--lo_;
return *this;
}
#endif /* ACE_USES_ACE_U_LONGLONG */
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