Glib::QueryQuark Class Reference

Quarks are unique IDs in Glib for strings for use in hash table lookups. More...

#include <glibmm/quark.h>

Inheritance diagram for Glib::QueryQuark:

Public Member Functions
	QueryQuark (const GQuark &q)
	QueryQuark (const ustring &s)
	QueryQuark (const char *s)
	~QueryQuark () noexcept
QueryQuark &	operator= (const QueryQuark &q)
	operator ustring () const
	operator GQuark () const
GQuark	id () const

Related Symbols
(Note that these are not member symbols.)
bool	operator== (const QueryQuark & a, const QueryQuark & b)
bool	operator!= (const QueryQuark & a, const QueryQuark & b)

Detailed Description

Quarks are unique IDs in Glib for strings for use in hash table lookups.

Each Quark is unique but may change between runs.

QueryQuark is a converter class for looking up but not allocating an ID. An id means the quark lookup failed.

Quark is used for actions for which the id should live on While QueryQuark should be used for queries. ie. void set_data (const Quark&, void * data); void* get_data (const QueryQuark&);

Constructor & Destructor Documentation

QueryQuark() [1/3]

Glib::QueryQuark::QueryQuark

(

const GQuark &

q

)

QueryQuark() [2/3]

Glib::QueryQuark::QueryQuark

(

const ustring &

s

)

QueryQuark() [3/3]

Glib::QueryQuark::QueryQuark

(

const char *

s

)

~QueryQuark()

Glib::QueryQuark::~QueryQuark ( )

inlinenoexcept

Member Function Documentation

id()

GQuark Glib::QueryQuark::id ( ) const

inline

operator GQuark()

Glib::QueryQuark::operator GQuark ( ) const

inline

operator ustring()

Glib::QueryQuark::operator ustring

(

)

const

operator=()

QueryQuark & Glib::QueryQuark::operator=

(

const QueryQuark &

q

)

Friends And Related Symbol Documentation

operator!=()

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

related

operator==()

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

related