# ABSearchComparison Constants used to specify the type of comparison beingmade. ``` typealias ABSearchComparison = CFIndex ``` ## Discussion These constants are used in a call to the [`ABGroupCreateSearchElement(_:_:_:_:_:)`](/documentation/AddressBook/ABGroupCreateSearchElement(_:_:_:_:_:)) or [`ABPersonCreateSearchElement(_:_:_:_:_:)`](/documentation/AddressBook/ABPersonCreateSearchElement(_:_:_:_:_:)) functionto specify the type of comparison being made. ## Topics ### Constants [`var kABEqual: _ABSearchComparison`](/documentation/AddressBook/kABEqual) Search for elements that are equal to the value. [`var kABNotEqual: _ABSearchComparison`](/documentation/AddressBook/kABNotEqual) Search for elements that are not equal to thevalue. [`var kABNotEqualCaseInsensitive: _ABSearchComparison`](/documentation/AddressBook/kABNotEqualCaseInsensitive) Search for elements that are not equal to the value, ignoring case. [`var kABLessThan: _ABSearchComparison`](/documentation/AddressBook/kABLessThan) Search for elements that are less than thevalue. [`var kABLessThanOrEqual: _ABSearchComparison`](/documentation/AddressBook/kABLessThanOrEqual) Search for elements that are less than or equalto the value. [`var kABGreaterThan: _ABSearchComparison`](/documentation/AddressBook/kABGreaterThan) Search for elements that are greater than thevalue. [`var kABGreaterThanOrEqual: _ABSearchComparison`](/documentation/AddressBook/kABGreaterThanOrEqual) Search for elements that are greater than orequal to the value. [`var kABEqualCaseInsensitive: _ABSearchComparison`](/documentation/AddressBook/kABEqualCaseInsensitive) Search for elements that are equal to the value,ignoring case. [`var kABContainsSubString: _ABSearchComparison`](/documentation/AddressBook/kABContainsSubString) Search for elements that contain the value. [`var kABContainsSubStringCaseInsensitive: _ABSearchComparison`](/documentation/AddressBook/kABContainsSubStringCaseInsensitive) Search for elements that contain the value,ignoring case. [`var kABPrefixMatch: _ABSearchComparison`](/documentation/AddressBook/kABPrefixMatch) Search for elements that begin with the value. [`var kABPrefixMatchCaseInsensitive: _ABSearchComparison`](/documentation/AddressBook/kABPrefixMatchCaseInsensitive) Search for elements that begin with the value, ignoring case. [`var kABSuffixMatch: _ABSearchComparison`](/documentation/AddressBook/kABSuffixMatch) Search for elements that end with the value. [`var kABSuffixMatchCaseInsensitive: _ABSearchComparison`](/documentation/AddressBook/kABSuffixMatchCaseInsensitive) Search for elements that end with the value, ignoring case. [`var kABBitsInBitFieldMatch: _ABSearchComparison`](/documentation/AddressBook/kABBitsInBitFieldMatch) Search for elements that match the bits in ABPersonFlags. [`var kABDoesNotContainSubString: _ABSearchComparison`](/documentation/AddressBook/kABDoesNotContainSubString) Search for elements that do not contain the value. [`var kABDoesNotContainSubStringCaseInsensitive: _ABSearchComparison`](/documentation/AddressBook/kABDoesNotContainSubStringCaseInsensitive) Search for elements that do not contain the value, ignoring case. [`var kABWithinIntervalAroundToday: _ABSearchComparison`](/documentation/AddressBook/kABWithinIntervalAroundToday) Search for elements that are within a time interval (in seconds) forward or backward from today. [`var kABWithinIntervalAroundTodayYearless: _ABSearchComparison`](/documentation/AddressBook/kABWithinIntervalAroundTodayYearless) Search for elements that are within a time interval (in seconds) forward or backward from this day in any year. [`var kABNotWithinIntervalAroundToday: _ABSearchComparison`](/documentation/AddressBook/kABNotWithinIntervalAroundToday) Search for elements that are *not* within a time interval (in seconds) forward or backward from today. [`var kABNotWithinIntervalAroundTodayYearless: _ABSearchComparison`](/documentation/AddressBook/kABNotWithinIntervalAroundTodayYearless) Search for elements that are *not* within a time interval (in seconds) forward or backward from this day in any year. [`var kABWithinIntervalFromToday: _ABSearchComparison`](/documentation/AddressBook/kABWithinIntervalFromToday) Search for elements that are within a time interval (in seconds) forward from today. [`var kABWithinIntervalFromTodayYearless: _ABSearchComparison`](/documentation/AddressBook/kABWithinIntervalFromTodayYearless) Search for elements that are within a time interval (in seconds) forward from this day in any year. [`var kABNotWithinIntervalFromToday: _ABSearchComparison`](/documentation/AddressBook/kABNotWithinIntervalFromToday) Search for elements that are *not* within a time interval (in seconds) forward from today. [`var kABNotWithinIntervalFromTodayYearless: _ABSearchComparison`](/documentation/AddressBook/kABNotWithinIntervalFromTodayYearless) Search for elements that are *not* within a time interval (in seconds) forward from this day in any year. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)