DOKK / manpages / debian 10 / libcommoncpp2-doc / ost_MapIndex.3.en
ost::MapIndex(3) Library Functions Manual ost::MapIndex(3)

ost::MapIndex - The MapIndex allows linear access into a MapTable, that otherwise could have its elements being retrieved only by key.

#include <object.h>


MapIndex ()
Creates an empty map index (pointing to nothing). MapIndex (MapObject *theObject)
Creates a map index pointing to a specific map object. MapIndex (const MapIndex &theIndex)
Creates a copy of a given map index. void * operator* () const
Dereference operator: the pointed object it is returned as void * for easy re-cast. MapIndex & operator= (MapObject *theObject)
Assignment operator to avoid implicit cast. MapIndex & operator++ ()
Prefix increment operator, to be used in loops and such. MapIndex operator++ (int)
Postfix increment operator, to be used in loops and such. bool operator== (const MapIndex &theIndex) const
Comparison operator, between two MapIndex's. bool operator!= (const MapIndex &theIndex) const
bool operator== (const MapObject *theObject) const
Comparison operator, between the MapIndex and a MapObject, useful to avoid casts for sake of clearness. bool operator!= (const MapObject *theObject) const

The MapIndex allows linear access into a MapTable, that otherwise could have its elements being retrieved only by key.

It can be increased, checked and dereferenced like a pointer, by means of suitable operators.

Author:

Sergio Repetto s.repetto@pentaengineering.it Index object to access MapTable elements

Creates an empty map index (pointing to nothing).

Creates a map index pointing to a specific map object.

Parameters:

the indexed object

Creates a copy of a given map index.

Parameters:

the source index object

bool ost::MapIndex::operator!= (const MapIndex & theIndex) const [inline]

bool ost::MapIndex::operator!= (const MapObject * theObject) const [inline]

Dereference operator: the pointed object it is returned as void * for easy re-cast.

Returns:

pointer to indexed object.

MapIndex& ost::MapIndex::operator++ ()

Prefix increment operator, to be used in loops and such.

Returns:

the object itself, as changed.

MapIndex ost::MapIndex::operator++ (int) [inline]

Postfix increment operator, to be used in loops and such.

Returns:

the object itself, as changed.

MapIndex& ost::MapIndex::operator= (MapObject * theObject)

Assignment operator to avoid implicit cast.

Returns:

the object itself, as changed.

bool ost::MapIndex::operator== (const MapIndex & theIndex) const [inline]

Comparison operator, between two MapIndex's.

Returns:

the object itself, as changed.

bool ost::MapIndex::operator== (const MapObject * theObject) const [inline]

Comparison operator, between the MapIndex and a MapObject, useful to avoid casts for sake of clearness.

Returns:

the object itself, as changed.

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Wed Oct 31 2018 GNU CommonC++