Rand48 Class Reference

A pseudo random number generator using the linear congruential algorithm with the following parameters: More...

Public Types
typedef uint32_t	result_type

Public Member Functions
	Rand48 (uint32_t val=default_seed)
void	seed (uint32_t val=default_seed)
void	discard (unsigned long long z)
uint64_t	raw ()
uint32_t	operator() ()

Static Public Member Functions
static constexpr uint32_t	min ()
static constexpr uint32_t	max ()

Static Public Attributes
static constexpr result_type	default_seed = 1u

Detailed Description

A pseudo random number generator using the linear congruential algorithm with the following parameters:

    Xn+1 = (aXn + c) mod m, where n >= 0

    a = 0x5DEECE66D,
    c = 0xB
    m = 2**48

It delivers results identical to the lrand48() function that is available on some systems.

Definition at line 53 of file Rand48.H.

Member Typedef Documentation

result_type

typedef uint32_t result_type

Definition at line 82 of file Rand48.H.

Constructor & Destructor Documentation

Rand48()

Rand48 ( uint32_t  val = default_seed )

inlineexplicit

Definition at line 91 of file Rand48.H.

Member Function Documentation

min()

static constexpr uint32_t min ( )

inlinestaticconstexpr

Definition at line 100 of file Rand48.H.

max()

static constexpr uint32_t max ( )

inlinestaticconstexpr

Definition at line 103 of file Rand48.H.

seed()

void seed ( uint32_t  val = default_seed )

inline

Definition at line 106 of file Rand48.H.

Referenced by Random::Random().

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discard()

void discard ( unsigned long long  z )

inline

Definition at line 112 of file Rand48.H.

raw()

uint64_t raw ( )

inline

Definition at line 119 of file Rand48.H.

operator()()

uint32_t operator() ( )

inline

Definition at line 128 of file Rand48.H.

Member Data Documentation

default_seed

constexpr result_type default_seed = 1u

staticconstexpr

Definition at line 85 of file Rand48.H.

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The documentation for this class was generated from the following file:

• src/OpenFOAM/primitives/random/Random/Rand48.H