Function

CFDictionaryGetCountOfKey(_:_:)

Returns the number of times a key occurs in a dictionary.

Declaration

func CFDictionaryGetCountOfKey(_ theDict: CFDictionary!, _ key: UnsafeRawPointer!) -> CFIndex

Parameters

theDict

The dictionary to examine.

key

The key for which to find matches in theDict. The key hash and equal callbacks provided when the dictionary was created are used to compare. If the hash callback was NULL, the key is treated as a pointer and converted to an integer. If the equal callback was NULL, pointer equality (in C, ==) is used. If key, or any of the keys in the dictionary, is not understood by the equal callback, the behavior is undefined.

Return Value

Returns 1 if a matching key is used by the dictionary, otherwise 0.

See Also

Examining a dictionary

func CFDictionaryContainsKey(CFDictionary!, UnsafeRawPointer!) -> Bool

Returns a Boolean value that indicates whether a given key is in a dictionary.

func CFDictionaryContainsValue(CFDictionary!, UnsafeRawPointer!) -> Bool

Returns a Boolean value that indicates whether a given value is in a dictionary.

func CFDictionaryGetCount(CFDictionary!) -> CFIndex

Returns the number of key-value pairs in a dictionary.

func CFDictionaryGetCountOfValue(CFDictionary!, UnsafeRawPointer!) -> CFIndex

Counts the number of times a given value occurs in the dictionary.

func CFDictionaryGetValueIfPresent(CFDictionary!, UnsafeRawPointer!, UnsafeMutablePointer<UnsafeRawPointer?>!) -> Bool

Returns a Boolean value that indicates whether a given value for a given key is in a dictionary, and returns that value indirectly if it exists.