bitval_array< nwords, bits_per_elem > Class Template Reference

Public Types
using	elem_t = unsigned long
	Internal type of atoms in this array.

Public Member Functions
constexpr void	set (std::size_t index, unsigned value)
constexpr unsigned	get (std::size_t index) const

Static Public Member Functions
static constexpr unsigned	get_idx (std::size_t index)
static constexpr unsigned	get_from (elem_t elem, std::size_t index)

Public Attributes
elem_t	data [n_mapwords] {}
	Storage of data.

Static Public Attributes
static constexpr unsigned	elems_per_mapword = sizeof(elem_t)*8 / bits_per_elem
	Number of elements in each atom.
static constexpr unsigned	n_mapwords = (nwords + elems_per_mapword-1) / elems_per_mapword
	Number of atoms needed to store data.

Detailed Description

template<unsigned nwords, unsigned bits_per_elem>
class bitval_array< nwords, bits_per_elem >

An array structure that can be initialized at compile-time and read at both compile-time and run-time. The number of elements and the bit-width of each element must be specified at compile-time. All elements have a maximum bit-width, and exactly that number of bits is used to store the data.

Member Function Documentation

get()

template<unsigned nwords, unsigned bits_per_elem>

constexpr unsigned bitval_array< nwords, bits_per_elem >::get ( std::size_t  index ) const

inlineconstexpr

Read value at given index.

Parameters

index

Index to read at.

Returns

The value at given index.

get_from()

template<unsigned nwords, unsigned bits_per_elem>

static constexpr unsigned bitval_array< nwords, bits_per_elem >::get_from ( elem_t  elem, std::size_t  index  )

inlinestaticconstexpr

Read value from internal element.

Parameters

elem	Copy of the internal element that stores the value.
index	Index from which to read.

Returns

The value at given index.

get_idx()

template<unsigned nwords, unsigned bits_per_elem>

static constexpr unsigned bitval_array< nwords, bits_per_elem >::get_idx ( std::size_t  index )

inlinestaticconstexpr

Determine the internal array index at which the given index is stored.

Parameters

index

Index to query.

Returns

The internal array index.

set()

template<unsigned nwords, unsigned bits_per_elem>

constexpr void bitval_array< nwords, bits_per_elem >::set ( std::size_t  index, unsigned  value  )

inlineconstexpr

Set value at given index.

Parameters

index	Index to set at. Counting starts from zero, and must be less than nwords.
value	Value to assign to that index.

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

• src/ctype.cc