glibmm 2.78.0
Public Member Functions | Related Functions | List of all members
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:
Inheritance graph
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Public Member Functions

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

Related Functions

(Note that these are not member functions.)

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 Function Documentation

◆ operator!=()

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

◆ operator==()

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