Class: CFBinaryHeapCallBacks
Overview
Structure containing the callbacks for values for a CFBinaryHeap object.
Instance Attribute Summary (collapse)
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- compare
The callback used to compare values in the binary heap in some operations.
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- copyDescription
The callback used to create a descriptive string representation of each value in the binary heap.
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- release
The callback used to remove a retain previously added for the binary heap from values as they are removed from the binary heap.
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- retain
The callback used to add a retain for the binary heap on values as they are put into the binary heap.
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- version
The version number of the structure type being passed in as a parameter to the CFBinaryHeap creation functions.
Method Summary
Methods inherited from Boxed
Methods inherited from NSObject
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Constructor Details
This class inherits a constructor from NSObject
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class NSObject
Instance Attribute Details
- (CFBinaryHeapCompareCallBack) compare
The callback used to compare values in the binary heap in some operations. This field cannot be NULL.
- (CFAllocatorCopyDescriptionCallBack) copyDescription
The callback used to create a descriptive string representation of each value in the binary heap. This is used by the CFCopyDescription function. If this field is NULL, the binary heap constructs a CFString object describing the value based on its pointer value.
- (CFBinaryHeapReleaseCallBack) release
The callback used to remove a retain previously added for the binary heap from values as they are removed from the binary heap. If this field is NULL, the binary heap does nothing to release a value being removed.
- (CFBinaryHeapRetainCallBack) retain
The callback used to add a retain for the binary heap on values as they are put into the binary heap. This callback returns the value to use as the value in the binary heap, which is usually the value parameter passed to this callback, but may be a different value if a different value should be added to the binary heap. If this field is NULL, the binary heap does nothing to retain a value being added.
- (CFIndex) version
The version number of the structure type being passed in as a parameter to the CFBinaryHeap creation functions. This structure is version 0.