/usr/include/ns3.17/ns3/int64x64-128.h is in libns3-dev 3.17+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 | #include "ns3/core-config.h"
#if !defined(INT64X64_128_H) && defined (INT64X64_USE_128) && !defined(PYTHON_SCAN)
#define INT64X64_128_H
#include "ns3/core-config.h"
#include <stdint.h>
#include <cmath>
#if defined(HAVE___UINT128_T) && !defined(HAVE_UINT128_T)
typedef __uint128_t uint128_t;
typedef __int128_t int128_t;
#endif
namespace ns3 {
#define HP128_MAX_64 18446744073709551615.0
#define HP128_MASK_LO ((((int128_t)1)<<64)-1)
class int64x64_t
{
public:
inline int64x64_t ()
: _v (0)
{}
inline int64x64_t (double value)
{
bool is_negative = value < 0;
value = is_negative ? -value : value;
double hi = std::floor (value);
double lo = (value - hi) * HP128_MAX_64;
_v = (int128_t)hi;
_v <<= 64;
_v += (int128_t)lo;
_v = is_negative ? -_v : _v;
}
inline int64x64_t (int v)
: _v (v)
{
_v <<= 64;
}
inline int64x64_t (long int v)
: _v (v)
{
_v <<= 64;
}
inline int64x64_t (long long int v)
: _v (v)
{
_v <<= 64;
}
inline int64x64_t (unsigned int v)
: _v (v)
{
_v <<= 64;
}
inline int64x64_t (unsigned long int v)
: _v (v)
{
_v <<= 64;
}
inline int64x64_t (unsigned long long int v)
: _v (v)
{
_v <<= 64;
}
explicit inline int64x64_t (int64_t hi, uint64_t lo)
{
bool is_negative = hi<0;
_v = is_negative ? -hi : hi;
_v <<= 64;
_v += lo;
_v = is_negative ? -_v : _v;
}
inline int64x64_t (const int64x64_t &o)
: _v (o._v) {}
inline int64x64_t &operator = (const int64x64_t &o)
{
_v = o._v;
return *this;
}
inline double GetDouble (void) const
{
bool is_negative = _v < 0;
uint128_t value = is_negative ? -_v : _v;
uint64_t hi = value >> 64;
uint64_t lo = value;
double flo = lo;
flo /= HP128_MAX_64;
double retval = hi;
retval += flo;
retval = is_negative ? -retval : retval;
return retval;
}
inline int64_t GetHigh (void) const
{
bool negative = _v < 0;
int128_t v = negative ? -_v : _v;
v >>= 64;
int64_t retval = v;
return negative ? -retval : retval;
}
inline uint64_t GetLow (void) const
{
bool negative = _v < 0;
int128_t v = negative ? -_v : _v;
int128_t low = v & HP128_MASK_LO;
uint64_t retval = low;
return retval;
}
#undef HP128_MAX_64
#undef HP128_MASK_LO
void MulByInvert (const int64x64_t &o);
static int64x64_t Invert (uint64_t v);
private:
friend bool operator == (const int64x64_t &lhs, const int64x64_t &rhs);
friend bool operator != (const int64x64_t &lhs, const int64x64_t &rhs);
friend bool operator <= (const int64x64_t &lhs, const int64x64_t &rhs);
friend bool operator >= (const int64x64_t &lhs, const int64x64_t &rhs);
friend bool operator < (const int64x64_t &lhs, const int64x64_t &rhs);
friend bool operator > (const int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t &operator += (int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t &operator -= (int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t &operator *= (int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t &operator /= (int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t operator + (const int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t operator - (const int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t operator * (const int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t operator / (const int64x64_t &lhs, const int64x64_t &rhs);
friend int64x64_t operator + (const int64x64_t &lhs);
friend int64x64_t operator - (const int64x64_t &lhs);
friend int64x64_t operator ! (const int64x64_t &lhs);
void Mul (const int64x64_t &o);
void Div (const int64x64_t &o);
static uint128_t UmulByInvert (uint128_t a, uint128_t b);
static uint128_t Umul (uint128_t a, uint128_t b);
static uint128_t Divu (uint128_t a, uint128_t b);
inline int64x64_t (int128_t v)
: _v (v) {}
int128_t _v;
};
inline bool operator == (const int64x64_t &lhs, const int64x64_t &rhs)
{
return lhs._v == rhs._v;
}
inline bool operator != (const int64x64_t &lhs, const int64x64_t &rhs)
{
return lhs._v != rhs._v;
}
inline bool operator < (const int64x64_t &lhs, const int64x64_t &rhs)
{
return lhs._v < rhs._v;
}
inline bool operator <= (const int64x64_t &lhs, const int64x64_t &rhs)
{
return lhs._v <= rhs._v;
}
inline bool operator >= (const int64x64_t &lhs, const int64x64_t &rhs)
{
return lhs._v >= rhs._v;
}
inline bool operator > (const int64x64_t &lhs, const int64x64_t &rhs)
{
return lhs._v > rhs._v;
}
inline int64x64_t &operator += (int64x64_t &lhs, const int64x64_t &rhs)
{
lhs._v += rhs._v;
return lhs;
}
inline int64x64_t &operator -= (int64x64_t &lhs, const int64x64_t &rhs)
{
lhs._v -= rhs._v;
return lhs;
}
inline int64x64_t &operator *= (int64x64_t &lhs, const int64x64_t &rhs)
{
lhs.Mul (rhs);
return lhs;
}
inline int64x64_t &operator /= (int64x64_t &lhs, const int64x64_t &rhs)
{
lhs.Div (rhs);
return lhs;
}
inline int64x64_t operator + (const int64x64_t &lhs)
{
return lhs;
}
inline int64x64_t operator - (const int64x64_t &lhs)
{
return int64x64_t (-lhs._v);
}
inline int64x64_t operator ! (const int64x64_t &lhs)
{
return int64x64_t (!lhs._v);
}
} // namespace ns3
#endif /* INT64X64_128_H */
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