int64x64-128.h File Reference

Declaration of the ns3::int64x64_t type using a native int128_t type. More...

#include "ns3/core-config.h"
#include <cmath>
#include <stdint.h>

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Classes
class	ns3::int64x64_t
	High precision numerical type, implementing Q64.64 fixed precision. More...

Namespaces
namespace	ns3
	Every class exported by the ns3 library is enclosed in the ns3 namespace.

Macros
#define	HP_MAX_64   (std::pow(2.0L, 64))
	Floating point value of HP_MASK_LO + 1.
#define	INT64X64_128_H
	Use uint128_t for int64x64_t implementation.

Typedefs
typedef __int128_t	int128_t
	Some compilers do not have this defined, so we define it.
typedef __uint128_t	uint128_t
	Some compilers do not have this defined, so we define it.

Detailed Description

Declaration of the ns3::int64x64_t type using a native int128_t type.

Definition in file int64x64-128.h.

Macro Definition Documentation

HP_MAX_64

#define HP_MAX_64   (std::pow(2.0L, 64))

Floating point value of HP_MASK_LO + 1.

We really want:

static const long double HP_MAX_64 = std:pow (2.0L, 64);

but we can't call functions in const definitions.

We could make this a static and initialize in int64x64-128.cc or int64x64.cc, but this requires handling static initialization order when most of the implementation is inline. Instead, we resort to this define.

Definition at line 76 of file int64x64-128.h.