A proxy reference class that provides mutable access to individual bits in a bitset. More...

#include <bitset_reference.hpp>

Public Types
using	self_type = bitset_reference<B>
	This class type for convenience.

Public Member Functions
constexpr	bitset_reference (const bitset_reference &) noexcept=default

constexpr	bitset_reference (bitset_reference &&) noexcept=default

constexpr self_type &	operator= (const self_type &rhs) noexcept
	Copy assignment from another bitset_reference.

constexpr self_type &	operator= (self_type &&rhs) noexcept
	Move assignment from another bitset_reference.

constexpr self_type &	operator= (bool value) noexcept
	Assignment from a boolean value.

constexpr	operator bool () const noexcept
	Implicit conversion to bool.

constexpr bool	operator~ () const noexcept
	Bitwise NOT operator.

constexpr self_type &	operator&= (bool rhs) noexcept
	Bitwise AND assignment.

constexpr self_type &	operator\|= (bool rhs) noexcept
	Bitwise OR assignment.

constexpr self_type &	operator^= (bool rhs) noexcept
	Bitwise XOR assignment.

Friends
class	bitset_iterator< B, false >
	Mutable iterator needs access to create references.

template<typename RAR, null_count_policy NCP>
class	dynamic_bitset_base
	Bitset base class needs access to create references.

Detailed Description

template<class B>
class sparrow::bitset_reference

A proxy reference class that provides mutable access to individual bits in a bitset.

This class acts as a smart reference that allows individual bits in a bitset to be treated as if they were regular boolean references, despite being stored as packed bits within integer blocks. It provides a complete set of boolean operations and assignment operators to make bit manipulation transparent to the user.

The reference maintains a pointer to the owning bitset and the index of the bit it represents. All operations are forwarded to the appropriate bitset methods, ensuring that null count tracking and other internal state remain consistent.

Template Parameters

B	The bitset type that contains the referenced bit. Must be a type that provides test() and set() methods with appropriate signatures.

Note: This class is typically not instantiated directly by users, but rather returned by bitset indexing operations and iterators.; The reference remains valid only as long as the referenced bitset exists and the bit index remains valid (i.e., no resize operations that would invalidate the index).

Example usage:

dynamic_bitset<uint8_t> bits(10);
auto ref = bits[5];  // Returns bitset_reference
ref= true;          // Sets bit 5 to true
bool value = ref;    // Reads bit 5
ref^= true;         // Flips bit 5

Definition at line 58 of file bitset_reference.hpp.

Member Typedef Documentation

◆ self_type

template<class B>

using sparrow::bitset_reference::self_type = bitset_reference

This class type for convenience.

Definition at line 62 of file bitset_reference.hpp.

Constructor & Destructor Documentation

◆ bitset_reference() [1/2]

template<class B>

sparrow::bitset_reference::bitset_reference ( const bitset_reference & )

constexprdefaultnoexcept

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◆ bitset_reference() [2/2]

template<class B>

sparrow::bitset_reference::bitset_reference ( bitset_reference && )

constexprdefaultnoexcept

Member Function Documentation

◆ operator bool()

template<class B>

sparrow::bitset_reference::operator bool ( ) const

constexprnoexcept

Implicit conversion to bool.

Returns: The current value of the referenced bit

Postcondition: Return value represents the current state of the bit

Definition at line 229 of file bitset_reference.hpp.

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◆ operator&=()

template<class B>

auto sparrow::bitset_reference::operator&= ( bool rhs )

constexprnoexcept

Bitwise AND assignment.

Parameters

rhs	The boolean value to AND with the referenced bit

Returns: Reference to this object

Postcondition: The referenced bit equals (old_value AND rhs); If rhs is false, the bit is set to false regardless of its previous value; If rhs is true, the bit retains its previous value

Definition at line 241 of file bitset_reference.hpp.

◆ operator=() [1/3]

template<class B>

auto sparrow::bitset_reference::operator= ( bool value )

constexprnoexcept

Assignment from a boolean value.

Parameters

value The boolean value to assign to the referenced bit

Returns: Reference to this object

Postcondition: The referenced bit equals value; If the bit value changed, the bitset's null count is updated accordingly

Definition at line 222 of file bitset_reference.hpp.

◆ operator=() [2/3]

template<class B>

auto sparrow::bitset_reference::operator= ( const self_type & rhs )

constexprnoexcept

Copy assignment from another bitset_reference.

Parameters

rhs	The reference to copy the value from

Returns: Reference to this object

Postcondition: The referenced bit has the same value as the bit referenced by rhs

Note: This copies the bit value, not the reference itself

Definition at line 208 of file bitset_reference.hpp.

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◆ operator=() [3/3]

template<class B>

auto sparrow::bitset_reference::operator= ( self_type && rhs )

constexprnoexcept

Move assignment from another bitset_reference.

Parameters

rhs	The reference to move the value from

Returns: Reference to this object

Postcondition: The referenced bit has the same value as the bit referenced by rhs

Note: This copies the bit value, not the reference itself (move semantics don't apply to bit values)

Definition at line 215 of file bitset_reference.hpp.

◆ operator^=()

template<class B>

auto sparrow::bitset_reference::operator^= ( bool rhs )

constexprnoexcept

Bitwise XOR assignment.

Parameters

rhs	The boolean value to XOR with the referenced bit

Returns: Reference to this object

Postcondition: The referenced bit equals (old_value XOR rhs); If rhs is true, the bit is flipped; If rhs is false, the bit retains its previous value

Definition at line 261 of file bitset_reference.hpp.

◆ operator|=()

template<class B>

auto sparrow::bitset_reference::operator|= ( bool rhs )

constexprnoexcept

Bitwise OR assignment.

Parameters

rhs	The boolean value to OR with the referenced bit

Returns: Reference to this object

Postcondition: The referenced bit equals (old_value OR rhs); If rhs is true, the bit is set to true regardless of its previous value; If rhs is false, the bit retains its previous value

Definition at line 251 of file bitset_reference.hpp.

◆ operator~()

template<class B>

bool sparrow::bitset_reference::operator~ ( ) const

constexprnoexcept

Bitwise NOT operator.

Returns: The logical negation of the referenced bit

Postcondition: Return value is true if the bit is false, false if the bit is true

Note: This does not modify the referenced bit

Definition at line 235 of file bitset_reference.hpp.

Friends And Related Symbol Documentation

◆ bitset_iterator< B, false >

template<class B>

friend class bitset_iterator< B, false >

friend

Mutable iterator needs access to create references.

Definition at line 176 of file bitset_reference.hpp.

◆ dynamic_bitset_base

template<class B>

template<typename RAR, null_count_policy NCP>

friend class dynamic_bitset_base

friend

Bitset base class needs access to create references.

Definition at line 181 of file bitset_reference.hpp.

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

sparrow/buffer/dynamic_bitset/bitset_iterator.hpp
sparrow/buffer/dynamic_bitset/bitset_reference.hpp

Public Types

Public Member Functions

Friends

Detailed Description

Member Typedef Documentation

◆ self_type

Constructor & Destructor Documentation

◆ bitset_reference() [1/2]

◆ bitset_reference() [2/2]

Member Function Documentation

◆ operator bool()

◆ operator&=()

◆ operator=() [1/3]

◆ operator=() [2/3]

◆ operator=() [3/3]

◆ operator^=()

◆ operator|=()

◆ operator~()

Friends And Related Symbol Documentation

◆ bitset_iterator< B, false >

◆ dynamic_bitset_base