Rand_pmms Class Reference

#include <rand_pmms.h>

Collaboration diagram for Rand_pmms:

Public Member Functions
	Rand_pmms ()=default
unsigned long int	pmms_rand (unsigned long int maxv)
void	seedi (unsigned long int s)

Private Member Functions
unsigned long int	nextrand ()

Private Attributes
unsigned long int	seed
unsigned long int	val

Detailed Description

Definition at line 23 of file rand_pmms.h.

Constructor & Destructor Documentation

Rand_pmms()

Rand_pmms::Rand_pmms ( )

default

Member Function Documentation

nextrand()

unsigned long int Rand_pmms::nextrand ( )

inlineprivate

Definition at line 43 of file rand_pmms.h.

        {
            unsigned long long int const a = 16807ull;
            unsigned long long int const m = 0x7FFFFFFFull;
            
            val = (a * val) % m;
 
            return val;        
        }

References val.

Referenced by pmms_rand().

pmms_rand()

unsigned long int Rand_pmms::pmms_rand ( unsigned long int maxv )

inline

Definition at line 35 of file rand_pmms.h.

        {
            unsigned long int raw_value = nextrand();
 
            return (unsigned long) ((double)maxv * (double)raw_value / (double)0x7FFFFFFF);
        }

References nextrand().

Referenced by generate_ldgm_matrix(), and left_matrix_init().

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seedi()

void Rand_pmms::seedi ( unsigned long int s )

inline

Definition at line 28 of file rand_pmms.h.

        {
            assert(s > 0ul && s < 0x7FFFFFFFul);
            seed = s;
            val = s;
        }

References seed, and val.

Referenced by generate_ldgm_matrix(), and left_matrix_init().

Member Data Documentation

seed

unsigned long int Rand_pmms::seed

private

Definition at line 53 of file rand_pmms.h.

Referenced by seedi().

val

unsigned long int Rand_pmms::val

private

Definition at line 54 of file rand_pmms.h.

Referenced by nextrand(), and seedi().

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

• ldgm/matrix-gen/rand_pmms.h