tesseract::TRand Class Reference

#include <helpers.h>

Public Member Functions
	TRand ()
void	set_seed (uint64_t seed)
void	set_seed (const std::string &str)
int32_t	IntRand ()
double	SignedRand (double range)
double	UnsignedRand (double range)

Detailed Description

Definition at line 42 of file helpers.h.

Constructor & Destructor Documentation

TRand()

tesseract::TRand::TRand ( )

inline

Definition at line 44 of file helpers.h.

: seed_(1) {}

Member Function Documentation

IntRand()

int32_t tesseract::TRand::IntRand ( )

inline

Definition at line 56 of file helpers.h.

                    {
    Iterate();
    return seed_ >> 33;
  }

set_seed() [1/2]

void tesseract::TRand::set_seed ( uint64_t  seed )

inline

Definition at line 46 of file helpers.h.

                               {
    seed_ = seed;
  }

set_seed() [2/2]

void tesseract::TRand::set_seed ( const std::string &  str )

inline

Definition at line 50 of file helpers.h.

                                      {
    std::hash<std::string> hasher;
    set_seed(static_cast<uint64_t>(hasher(str)));
  }

SignedRand()

double tesseract::TRand::SignedRand ( double  range )

inline

Definition at line 61 of file helpers.h.

                                  {
    return range * 2.0 * IntRand() / INT32_MAX - range;
  }

UnsignedRand()

double tesseract::TRand::UnsignedRand ( double  range )

inline

Definition at line 65 of file helpers.h.

                                    {
    return range * IntRand() / INT32_MAX;
  }

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

• /usr/src/tesseract-ocr.master/src/ccutil/helpers.h