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kMap Class Reference

Description

Represents a collection of key-value pairs stored in a hash table.

The kMap class represents a hash-table of key-value pairs. The kMap constructor accepts kType arguments that determine the key type and value type. The map will automatically grow as new items are inserted.

For maps that contain key or value objects (e.g. kString) as opposed to values (e.g. kText32), the objects are not automatically destroyed when the map is destroyed. To recursively destroy both the map and its keys/values, use kObject_Dispose.

kMap supports the kObject_Clone, kObject_Dispose, and kObject_Size methods.

kMap supports the kdat6 serialization protocol.

Inheritance diagram for kMap:
Inheritance graph

Public Member Functions

kStatus kMap_Add (kMap map, const void *key, const void *value)
 Adds a new key-value pair. More...
 
kStatus kMap_Allocate (kMap map, kType keyType, kType valueType, kSize initialCapacity)
 Reallocates the map. More...
 
kStatus kMap_Assign (kMap map, kMap source)
 Performs a shallow copy of the source map. More...
 
kSize kMap_Capacity (kMap map)
 Returns the number of elements for which space has been allocated. More...
 
kStatus kMap_Clear (kMap map)
 Sets the count of map items to zero. More...
 
kStatus kMap_Construct (kMap *map, kType keyType, kType valueType, kSize initialCapacity, kAlloc allocator)
 Constructs a kMap object. More...
 
kSize kMap_Count (kMap map)
 Returns the count of map elements. More...
 
kStatus kMap_Find (kMap map, const void *key, void *value)
 Finds the value associated with the given key. More...
 
kStatus kMap_FindItem (kMap map, const void *key, kMapItem *item)
 Finds the map item associated with the given key. More...
 
kMapItem kMap_First (kMap map)
 Gets a reference to the first map item (key-value pair). More...
 
const void * kMap_Key (kMap map, kMapItem item)
 Returns a pointer to the key associated with a map item. More...
 
kType kMap_KeyType (kMap map)
 Returns the key type. More...
 
kMapItem kMap_Next (kMap map, kMapItem item)
 Given a map item, gets a reference to the next map item. More...
 
kStatus kMap_Purge (kMap map)
 Disposes any elements in the map and sets the count of map items to zero. More...
 
kStatus kMap_Remove (kMap map, const void *key, void *oldKey, void *oldValue)
 Removes a key-value pair from the map. More...
 
kStatus kMap_RemoveItem (kMap map, kMapItem item)
 Removes an item from the map. More...
 
kStatus kMap_Replace (kMap map, const void *key, const void *value)
 Adds or replaces a key-value pair. More...
 
kStatus kMap_Reserve (kMap map, kSize capacity)
 Ensures that capacity is reserved for at least the specified number of map items. More...
 
kStatus kMap_SetEqualsFx (kMap map, kEqualsFx function)
 Sets a custom key equality comparator. More...
 
kSize kMap_SetHashFx (kMap map, kHashFx function)
 Sets a custom hash code generator. More...
 
kStatus kMap_SetValue (kMap map, kMapItem item, const void *value)
 Sets the value associated with a map item. More...
 
void * kMap_Value (kMap map, kMapItem item)
 Returns a pointer to the value associated with a map item. More...
 
kType kMap_ValueType (kMap map)
 Returns the value type. More...
 
- Public Member Functions inherited from kObject
kAlloc kObject_Alloc (kObject object)
 Gets the memory allocator associated with this object. More...
 
kStatus kObject_Clone (kObject *object, kObject source, kAlloc allocator)
 Constructs a new object by copying an existing object, including any aggregated child elements. More...
 
kStatus kObject_Destroy (kObject object)
 Destroys the object. More...
 
kStatus kObject_Dispose (kObject object)
 Destroys the object and any aggregated child elements. More...
 
kBool kObject_Equals (kObject object, kObject other)
 Determines whether the object is equal to another object. More...
 
kSize kObject_HashCode (kObject object)
 Gets a hash code representing the state of this object. More...
 
kBool kObject_Is (kObject object, kType type)
 Determines whether this object is an instance of the specified type. More...
 
kBool kObject_IsShared (kObject object)
 Reports whether the object is currently shared (reference count greater than one). More...
 
kStatus kObject_SetPool (kObject object, kObjectPool pool)
 Sets the object pool associated with this object. More...
 
kStatus kObject_Share (kObject object)
 Increments the reference count associated with this object. More...
 
kSize kObject_Size (kObject object)
 Estimates the memory consumed by this object, including any aggregated child elements. More...
 
kType kObject_Type (kObject object)
 Returns the type of the object. More...
 

Related

kPointer kMapItem
 Represents a key-value pair within a map.
 
#define kMap_KeyType_(MAP)   kxMap_KeyType_(MAP)
 Macro version of kMap_KeyType.
 
#define kMap_ValueType_(MAP)   kxMap_ValueType_(MAP)
 Macro version of kMap_ValueType.
 
#define kMap_Count_(MAP)   kxMap_Count_(MAP)
 Macro version of kMap_Count.
 
#define kMap_KeyAs_(MAP, ITEM, TYPE)   kxMap_KeyAs_(MAP, ITEM, TYPE)
 Accesses a map item key and casts the key to the specified type. More...
 
#define kMap_ValueAs_(MAP, ITEM, TYPE)   kxMap_ValueAs_(MAP, ITEM, TYPE)
 Accesses a map item value and casts the value to the specified type. More...
 

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