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|
/* -*- C++ -*- */
// $Id$
#if defined (ACE_LACKS_LONGLONG_T)
ACE_INLINE
ACE_U_LongLong::ACE_U_LongLong (const ACE_UINT32 lo, const ACE_UINT32 hi)
{
h_ () = hi;
l_ () = lo;
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::hi (void) const
{
return h_ ();
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::lo (void) const
{
return l_ ();
}
ACE_INLINE void
ACE_U_LongLong::hi (const ACE_UINT32 hi)
{
h_ () = hi;
}
ACE_INLINE void
ACE_U_LongLong::lo (const ACE_UINT32 lo)
{
l_ () = lo;
}
ACE_INLINE
ACE_U_LongLong::~ACE_U_LongLong (void)
{
}
ACE_INLINE int
ACE_U_LongLong::operator== (const ACE_U_LongLong &n) const
{
return h_ () == n.h_ () && l_ () == n.l_ ();
}
ACE_INLINE int
ACE_U_LongLong::operator== (const ACE_UINT32 n) const
{
return h_ () == 0 && l_ () == n;
}
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_UINT32 n) const
{
return ! (*this == n);
}
ACE_INLINE int
ACE_U_LongLong::operator< (const ACE_U_LongLong &n) const
{
return h_ () < n.h_ () ? 1
: h_ () > n.h_ () ? 0
: l_ () < n.l_ ();
}
ACE_INLINE int
ACE_U_LongLong::operator< (const ACE_UINT32 n) const
{
return operator< (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE int
ACE_U_LongLong::operator<= (const ACE_U_LongLong &n) const
{
return h_ () < n.h_ () ? 1
: h_ () > n.h_ () ? 0
: l_ () <= n.l_ ();
}
ACE_INLINE int
ACE_U_LongLong::operator<= (const ACE_UINT32 n) const
{
return operator<= (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE int
ACE_U_LongLong::operator> (const ACE_U_LongLong &n) const
{
return h_ () > n.h_ () ? 1
: h_ () < n.h_ () ? 0
: l_ () > n.l_ ();
}
ACE_INLINE int
ACE_U_LongLong::operator> (const ACE_UINT32 n) const
{
return operator> (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE int
ACE_U_LongLong::operator>= (const ACE_U_LongLong &n) const
{
return h_ () > n.h_ () ? 1
: h_ () < n.h_ () ? 0
: l_ () >= n.l_ ();
}
ACE_INLINE int
ACE_U_LongLong::operator>= (const ACE_UINT32 n) const
{
return operator>= (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE
ACE_U_LongLong::ACE_U_LongLong (const ACE_U_LongLong &n)
{
h_ () = n.h_ ();
l_ () = n.l_ ();
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator= (const ACE_U_LongLong &n)
{
h_ () = n.h_ ();
l_ () = n.l_ ();
return *this;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator+ (const ACE_U_LongLong &n) const
{
ACE_U_LongLong ret (l_ () + n.l_ (), h_ () + n.h_ ());
if (ret.l_ () < n.l_ ()) /* carry */ ++ret.h_ ();
return ret;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator+ (const ACE_UINT32 n) const
{
return operator+ (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator- (const ACE_U_LongLong &n) const
{
ACE_U_LongLong ret (l_ () - n.l_ (), h_ () - n.h_ ());
if (l_ () < n.l_ ()) /* borrow */ --ret.h_ ();
return ret;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator- (const ACE_UINT32 n) const
{
return operator- (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator<< (const u_int n) const
{
const ACE_UINT32 carry_mask = l_ () >> (32 - n);
ACE_U_LongLong ret (n < 32 ? l_ () << n : 0,
n < 32 ? (h_ () << n) | carry_mask : carry_mask);
return ret;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator<<= (const u_int n)
{
const ACE_UINT32 carry_mask = l_ () >> (32 - n);
h_ () = n < 32 ? (h_ () << n) | carry_mask : carry_mask;
// g++ 2.7.2.3/Solaris 2.5.1 doesn't modify l_ () if shifted by 32.
l_ () = n < 32 ? l_ () << n : 0;
return *this;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator>> (const u_int n) const
{
const ACE_UINT32 carry_mask = h_ () << (32 - n);
ACE_U_LongLong ret (n < 32 ? (l_ () >> n) | carry_mask : 0,
n < 32 ? h_ () >> n : 0);
return ret;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator>>= (const u_int n)
{
const ACE_UINT32 carry_mask = h_ () << (32 - n);
l_ () = n < 32 ? (l_ () >> n) | carry_mask : carry_mask;
h_ () = n < 32 ? h_ () >> n : 0;
return *this;
}
ACE_INLINE double
ACE_U_LongLong::operator/ (const double n) const
{
// See the derivation above in operator/ (const ACE_UINT32).
return ((double) 0xffffffffu - n + 1.0) / n * h_ () +
(double) h_ () + (double) l_ () / n;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator+= (const ACE_U_LongLong &n)
{
h_ () += n.h_ ();
l_ () += n.l_ ();
if (l_ () < n.l_ ()) /* carry */ ++h_ ();
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator+= (const ACE_UINT32 n)
{
return operator+= (ACE_static_cast (const ACE_U_LongLong, n));
}
#define ACE_HIGHBIT (~(~0UL >> 1))
ACE_INLINE ACE_UINT32
ACE_U_LongLong::ul_shift (ACE_UINT32 a, ACE_UINT32 c_in, ACE_UINT32 *c_out)
{
const ACE_UINT32 b = (a << 1) | c_in;
*c_out = (*c_out << 1) + ((a & ACE_HIGHBIT) > 0);
return b;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::ull_shift (ACE_U_LongLong a, ACE_UINT32 c_in,
ACE_UINT32 *c_out)
{
ACE_U_LongLong b;
b.l_ () = (a.l_ () << 1) | c_in;
c_in = ((a.l_ () & ACE_HIGHBIT) > 0);
b.h_ () = (a.h_ () << 1) | c_in;
*c_out = (*c_out << 1) + ((a.h_ () & ACE_HIGHBIT) > 0);
return b;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::ull_add (ACE_U_LongLong a, ACE_U_LongLong b, ACE_UINT32 *carry)
{
ACE_U_LongLong r (0, 0);
ACE_UINT32 c1, c2, c3, c4;
c1 = a.l_ () % 2;
c2 = b.l_ () % 2;
c3 = 0;
r.l_ () = a.l_ ()/2 + b.l_ ()/2 + (c1+c2)/2;
r.l_ () = ul_shift (r.l_ (), (c1+c2)%2, &c3);
c1 = a.h_ () % 2;
c2 = b.h_ () % 2;
c4 = 0;
r.h_ () = a.h_ ()/2 + b.h_ ()/2 + (c1+c2+c3)/2;
r.h_ () = ul_shift (r.h_ (), (c1+c2+c3)%2, &c4);
*carry = c4;
return r;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::ull_mult (ACE_U_LongLong a, ACE_UINT32 b, ACE_UINT32 *carry)
{
register ACE_UINT32 mask = ACE_HIGHBIT;
const ACE_U_LongLong zero (0, 0);
ACE_U_LongLong accum (0, 0);
ACE_UINT32 c;
*carry = 0;
if (b > 0)
do
{
accum = ull_shift (accum, 0U, carry);
if (b & mask)
accum = ull_add (accum, a, &c);
else
accum = ull_add (accum, zero, &c);
*carry += c;
mask >>= 1;
}
while (mask > 0);
return accum;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator* (const ACE_UINT32 n)
{
ACE_UINT32 carry; // will throw the carry away
return ull_mult (*this, n, &carry);
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator*= (const ACE_UINT32 n)
{
ACE_UINT32 carry; // will throw the carry away
return *this = ull_mult (*this, n, &carry);
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator-= (const ACE_U_LongLong &n)
{
h_ () -= n.h_ ();
if (l_ () < n.l_ ()) /* borrow */ --h_ ();
l_ () -= n.l_ ();
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator-= (const ACE_UINT32 n)
{
return operator-= (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator++ ()
{
++l_ ();
if (l_ () == 0) /* carry */ ++h_ ();
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator-- ()
{
if (l_ () == 0) /* borrow */ --h_ ();
--l_ ();
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator|= (const ACE_U_LongLong n)
{
l_ () |= n.l_ ();
h_ () |= n.h_ ();
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator|= (const ACE_UINT32 n)
{
return operator|= (ACE_static_cast (const ACE_U_LongLong, n));
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator&= (const ACE_U_LongLong n)
{
l_ () &= n.l_ ();
h_ () &= n.h_ ();
return *this;
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator&= (const ACE_UINT32 n)
{
return operator&= (ACE_static_cast (const ACE_U_LongLong, n));
}
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 former
// 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 * h_ () + h_ () + l_ () / 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 former 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 * h_ () + l_ () % n) % n;
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator| (const ACE_INT32 n) const
{
return l_ () | n;
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator& (const ACE_INT32 n) const
{
return l_ () & n;
}
ACE_INLINE ACE_U_LongLong
ACE_U_LongLong::operator* (const ACE_INT32 n)
{
return operator* ((ACE_UINT32) n);
}
ACE_INLINE ACE_U_LongLong &
ACE_U_LongLong::operator*= (const ACE_INT32 n)
{
return operator*= ((ACE_UINT32) n);
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator/ (const ACE_INT32 n) const
{
return operator/ ((ACE_UINT32) n);
}
#if ACE_SIZEOF_INT == 4
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator/ (const u_long n) const
{
return operator/ ((ACE_UINT32) n);
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator/ (const long n) const
{
return operator/ ((ACE_UINT32) n);
}
#else /* ACE_SIZEOF_INT != 4 */
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator/ (const u_int n) const
{
return operator/ ((ACE_UINT32) n);
}
ACE_INLINE ACE_UINT32
ACE_U_LongLong::operator/ (const int n) const
{
return operator/ ((ACE_UINT32) n);
}
#endif /* ACE_SIZEOF_INT != 4 */
#endif /* ACE_LACKS_LONGLONG_T */
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