IdentifierHash Class Reference

This is a "hash" representation of an Identifier. This encodes a 32 bit index which can be used to look-up "Identifiable"s stored in a simple vector. It is intended to be a continuous hash, i.e. it runs from 0 to N-1, where there are N different possible values for an Identifier(32) within a specific context. IdentifierHashes are created by default in an invalid state which can be checked with "is_valid" method. This allows some error checking. More...

#include <IdentifierHash.h>

Collaboration diagram for IdentifierHash:

Public Types
using	value_type = unsigned int

Public Member Functions
	IdentifierHash ()=default
	Default methods. More...
	IdentifierHash (value_type value)
	Initialization with value. More...
bool	is_valid () const
	Check if id is in a valid state. More...
IdentifierHash &	operator= (value_type value)
	Assignment operators. More...
IdentifierHash &	operator+= (unsigned int value)
IdentifierHash &	operator-= (unsigned int value)
	operator unsigned int () const
unsigned int	value () const

Private Attributes
value_type	m_value = m_max_value

Static Private Attributes
static constexpr value_type	m_max_value = 0xFFFFFFFF
	default value, and indicator of invalid state More...

Detailed Description

This is a "hash" representation of an Identifier. This encodes a 32 bit index which can be used to look-up "Identifiable"s stored in a simple vector. It is intended to be a continuous hash, i.e. it runs from 0 to N-1, where there are N different possible values for an Identifier(32) within a specific context. IdentifierHashes are created by default in an invalid state which can be checked with "is_valid" method. This allows some error checking.

Author

schaffer

Date

2003-11-26

Definition at line 25 of file IdentifierHash.h.

Member Typedef Documentation

value_type

using IdentifierHash::value_type = unsigned int

Definition at line 27 of file IdentifierHash.h.

Constructor & Destructor Documentation

IdentifierHash() [1/2]

IdentifierHash::IdentifierHash ( )

default

Default methods.

IdentifierHash() [2/2]

IdentifierHash::IdentifierHash

(

value_type

value

)

Initialization with value.

Member Function Documentation

is_valid()

bool IdentifierHash::is_valid

(

)

const

Check if id is in a valid state.

operator unsigned int()

IdentifierHash::operator unsigned int

(

)

const

Get the value

operator+=()

IdentifierHash& IdentifierHash::operator+=

(

unsigned int

value

)

operator-=()

IdentifierHash& IdentifierHash::operator-=

(

unsigned int

value

)

operator=()

IdentifierHash& IdentifierHash::operator=

(

value_type

value

)

Assignment operators.

value()

unsigned int IdentifierHash::value

(

)

const

Member Data Documentation

m_max_value

constexpr value_type IdentifierHash::m_max_value = 0xFFFFFFFF

staticconstexprprivate

default value, and indicator of invalid state

Definition at line 46 of file IdentifierHash.h.

m_value

value_type IdentifierHash::m_value = m_max_value

private

Definition at line 48 of file IdentifierHash.h.

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

• IdentifierHash.h