compare
The callback used to compare values in the binary heap in some operations. This field cannot be NULL.
Declaration
var compare: ((UnsafeRawPointer?, UnsafeRawPointer?, UnsafeMutableRawPointer?) -> CFComparisonResult)!Parameters
- ptr1:
First value to compare.
- ptr2:
Second value to compare.
- info:
Not used. Should always be
NULL.
Return Value
CFComparisonResult.compareLessThan if ptr1 is less than ptr2, CFComparisonResult.compareEqualTo if ptr1 and ptr2 are equal, or CFComparisonResult.compareGreaterThan if ptr1 is greater than ptr2.