exrandom::digit_arithmetic< b > Class Template Reference

Machinery to manipulate bases. More...

#include <exrandom/digit_arithmetic.hpp>

Static Public Attributes
static const uint_t	base
static const uint_t	basem1
static const int	bits
static const bool	power_of_two

Related Functions
(Note that these are not member functions.)
typedef std::uint_fast32_t	uint_t
const int	uint_w
const uint_t	uint_m
constexpr int	highest_bit_idx (unsigned x)

Detailed Description

template<uint_t b>
class exrandom::digit_arithmetic< b >

Machinery to manipulate bases.

Template Parameters

b	the base as an unsigned.

Base b = 0 is treated as 2³². b = 1 is disallowed.

Definition at line 62 of file digit_arithmetic.hpp.

Friends And Related Function Documentation

uint_t

template<uint_t b>

typedef std::uint_fast32_t uint_t

related

The unsigned type used for random digits.

Definition at line 31 of file digit_arithmetic.hpp.

uint_w

template<uint_t b>

const int uint_w

related

The size of uint_t in bits.

Definition at line 37 of file digit_arithmetic.hpp.

uint_m

template<uint_t b>

const uint_t uint_m

related

A mask for uint_t.

Definition at line 43 of file digit_arithmetic.hpp.

highest_bit_idx()

template<uint_t b>

constexpr int highest_bit_idx ( unsigned  x )

related

Parameters

x

Returns

the position of the most significant bit in x.

returns 0 for x = 0, 32 for x = uint_m

Definition at line 52 of file digit_arithmetic.hpp.

Member Data Documentation

base

template<uint_t b>

const uint_t exrandom::digit_arithmetic< b >::base

static

The base (or 0 if the base is 2³²).

Definition at line 67 of file digit_arithmetic.hpp.

basem1

template<uint_t b>

const uint_t exrandom::digit_arithmetic< b >::basem1

static

The base less 1, in range [1, 2³² − 1].

Definition at line 71 of file digit_arithmetic.hpp.

bits

template<uint_t b>

const int exrandom::digit_arithmetic< b >::bits

static

The number of bits needed to hold a digit in [0, basem1].

Definition at line 75 of file digit_arithmetic.hpp.

power_of_two

template<uint_t b>

const bool exrandom::digit_arithmetic< b >::power_of_two

static

Is the base a power of 2?

Definition at line 80 of file digit_arithmetic.hpp.

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

• digit_arithmetic.hpp