RAND Class Reference

#include "rand.h"

Public Member Functions
	RAND (uint64_t seed=0)
uint32_t	draw (uint32_t max)
uint32_t	draw (uint32_t min, uint32_t max)
uint32_t	count (void)
	RAND (uint64_t seed=0)
uint32_t	draw (uint32_t max)
uint32_t	draw (uint32_t min, uint32_t max)

Detailed Description

Examples

cpp50Example_main.cpp, and cpp55Example_main.cpp.

Constructor & Destructor Documentation

RAND() [1/2]

RAND::RAND ( uint64_t seed = 0 )

inline

  : seed (seed | 1), num (0)
  {}

RAND() [2/2]

RAND::RAND ( uint64_t seed = 0 )

inline

  : seed (seed | 1)
  {}

Member Function Documentation

count()

uint32_t RAND::count ( void )

inline

  {
 return num;
  }

draw() [1/4]

uint32_t RAND::draw ( uint32_t max )

inline

Examples

cpp50Example_main.cpp.

  {
  uint32_t val;
 if (max >= 0X7FFFFFFFFFFFFFFFULL)
  {
 do
  {
  val = next ();
  } while (val > max);
  }
 else
  {
  uint64_t frac = 0X7FFFFFFFFFFFFFFFULL / (max + 1ULL);
 do
  {
  val = (next () >> 1) / frac;
  } while (val > max);
  }
  
 return val;
  }

Referenced by draw().

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draw() [2/4]

uint32_t RAND::draw ( uint32_t max )

inline

  {
  uint32_t val;
 if (max >= 0X7FFFFFFFUL)
  {
 do
  {
  val = next ();
  } while (val > max);
  }
 else
  {
  uint32_t frac = 0X7FFFFFFFUL / (max + 1UL);
 do
  {
  val = (next () >> 1) / frac;
  } while (val > max);
  }
  
 return val;
  }

draw() [3/4]

uint32_t RAND::draw ( uint32_t min, uint32_t max )

inline

  {
 return draw (max - min) + min;
  }

References draw().

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draw() [4/4]

uint32_t RAND::draw ( uint32_t min, uint32_t max )

inline

  {
 return draw (max - min) + min;
  }

References draw().

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

• 50_perf_cpp/rand.h