pasta::BitAccess Class Reference

Utility class used for the access operator of the BitVector. More...

#include <bit_vector.hpp>

Public Member Functions
	BitAccess ()=delete
	Deleted constructor.
	BitAccess (BitAccess &&)=delete
	Avoiding implicit generation of the move constructor.
BitAccess &	operator= (BitAccess const &)=delete
	Avoiding implicit copy assignment.
BitAccess &	operator= (BitAccess &&)=delete
	Avoiding implicit move assignment.
	BitAccess (uint64_t *const data, size_t const position) noexcept
	Constructor setting 64-bit word and position of the bit in the word.
	operator bool () const noexcept
	User-defined conversion function to bool.
BitAccess &	operator= (bool const value) noexcept
	Assignment operator to set a bit within the bit vector.
int64_t	distance (BitAccess const &other) const noexcept
	Computes the distance to another BitAccess instance.

Friends
class	BitVector
	Forward declaration.
bool	operator== (BitAccess const &a, BitAccess const &b) noexcept
	Comparison of two BitAccess instances for equality.
bool	operator!= (BitAccess const &a, BitAccess const &b) noexcept
	Comparison of two BitAccess instances for inequality.

Detailed Description

Utility class used for the access operator of the BitVector.

This utility class is created when the bit vector is accessed through the access operator. It cannot be created explicitly and cannot be assigned. It can only be cast to bool (for read access) or be assigned a bool (for write access).

Constructor & Destructor Documentation

BitAccess()

pasta::BitAccess::BitAccess ( uint64_t *const data, size_t const position )

inlinenoexcept

Constructor setting 64-bit word and position of the bit in the word.

This constructor can be used when a single bit in the bit vector has to be accessed and one does not want to extract the bit from the 64-bit word manually.

Parameters

data	Pointer to the 64-bit word that contains the bit.
position	Position of the bit within the 64-bit word.

Member Function Documentation

distance()

int64_t pasta::BitAccess::distance ( BitAccess const & other ) const

inlinenoexcept

Computes the distance to another BitAccess instance.

This function is only used within the iterator and usually should not be required in any other situation. It has undefined behavior if used for two instances from different BitVector.

Parameters

other

The BitAccess instance the distance is computed to.

Returns

The distance between this and the other BitAccess instance.

operator bool()

pasta::BitAccess::operator bool ( ) const

inlinenoexcept

User-defined conversion function to bool.

Used for read access to a single bit.

operator=()

BitAccess & pasta::BitAccess::operator= ( bool const value )

inlinenoexcept

Assignment operator to set a bit within the bit vector.

Parameters

value

Value the bit should be written to.

Returns

This after the bit has been written.

Friends And Related Symbol Documentation

operator!=

bool operator!= ( BitAccess const & a, BitAccess const & b )

friend

Comparison of two BitAccess instances for inequality.

This does not compare the value the BitAccess instance refers to but rather if the two instances refer to different position or to different BitVector.

Parameters

a	First BitAccess instance.
b	Second BitAccess instance.

Returns

true if both instances refer to different position or different BitVector and false otherwise.

operator==

bool operator== ( BitAccess const & a, BitAccess const & b )

friend

Comparison of two BitAccess instances for equality.

This does not compare the value the BitAccess instance refers to but rather if the two instances refer to the same position in the same BitVector.

Parameters

a	First BitAccess instance.
b	Second BitAccess instance.

Returns

true if both instances refer to the same position in the same BitVector and false otherwise.

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

• include/pasta/bit_vector/bit_vector.hpp