---
title: Core Foundation Functions
framework: corefoundation
role: collectionGroup
role_heading: API Collection
path: corefoundation/core-foundation-functions
---

# Core Foundation Functions

## Topics

### Functions

- [CFAllocatorAllocateBytes(_:_:_:)](corefoundation/cfallocatorallocatebytes(_:_:_:).md)
- [CFAllocatorAllocateTyped(_:_:_:_:)](corefoundation/cfallocatorallocatetyped(_:_:_:_:).md)
- [CFAllocatorReallocateBytes(_:_:_:_:)](corefoundation/cfallocatorreallocatebytes(_:_:_:_:).md)
- [CFAllocatorReallocateTyped(_:_:_:_:_:)](corefoundation/cfallocatorreallocatetyped(_:_:_:_:_:).md)
- [CFAttributedStringGetBidiLevelsAndResolvedDirections(_:_:_:_:_:)](corefoundation/cfattributedstringgetbidilevelsandresolveddirections(_:_:_:_:_:).md)
- [CFBundleCopyLocalizedStringForLocalizations(_:_:_:_:_:)](corefoundation/cfbundlecopylocalizedstringforlocalizations(_:_:_:_:_:).md)
- [CFBundleIsArchitectureLoadable(_:)](corefoundation/cfbundleisarchitectureloadable(_:).md)
- [CFBundleIsExecutableLoadable(_:)](corefoundation/cfbundleisexecutableloadable(_:).md)
- [CFBundleIsExecutableLoadableForURL(_:)](corefoundation/cfbundleisexecutableloadableforurl(_:).md)
- [CFCopyHomeDirectoryURL()](corefoundation/cfcopyhomedirectoryurl().md)
- [CFDateFormatterCreateISO8601Formatter(_:_:)](corefoundation/cfdateformattercreateiso8601formatter(_:_:).md)
- [CFFileSecurityClearProperties(_:_:)](corefoundation/cffilesecurityclearproperties(_:_:).md)
- [CFFileSecurityCopyAccessControlList(_:_:)](corefoundation/cffilesecuritycopyaccesscontrollist(_:_:).md)
- [CFFileSecurityCopyGroupUUID(_:_:)](corefoundation/cffilesecuritycopygroupuuid(_:_:).md)
- [CFFileSecurityCopyOwnerUUID(_:_:)](corefoundation/cffilesecuritycopyowneruuid(_:_:).md)
- [CFFileSecurityCreate(_:)](corefoundation/cffilesecuritycreate(_:).md)
- [CFFileSecurityCreateCopy(_:_:)](corefoundation/cffilesecuritycreatecopy(_:_:).md)
- [CFFileSecurityGetGroup(_:_:)](corefoundation/cffilesecuritygetgroup(_:_:).md)
- [CFFileSecurityGetMode(_:_:)](corefoundation/cffilesecuritygetmode(_:_:).md)
- [CFFileSecurityGetOwner(_:_:)](corefoundation/cffilesecuritygetowner(_:_:).md)
- [CFFileSecurityGetTypeID()](corefoundation/cffilesecuritygettypeid().md)
- [CFFileSecuritySetAccessControlList(_:_:)](corefoundation/cffilesecuritysetaccesscontrollist(_:_:).md)
- [CFFileSecuritySetGroup(_:_:)](corefoundation/cffilesecuritysetgroup(_:_:).md)
- [CFFileSecuritySetGroupUUID(_:_:)](corefoundation/cffilesecuritysetgroupuuid(_:_:).md)
- [CFFileSecuritySetMode(_:_:)](corefoundation/cffilesecuritysetmode(_:_:).md)
- [CFFileSecuritySetOwner(_:_:)](corefoundation/cffilesecuritysetowner(_:_:).md)
- [CFFileSecuritySetOwnerUUID(_:_:)](corefoundation/cffilesecuritysetowneruuid(_:_:).md)
- [CFReadStreamCopyDispatchQueue(_:)](corefoundation/cfreadstreamcopydispatchqueue(_:).md)
- [CFReadStreamSetDispatchQueue(_:_:)](corefoundation/cfreadstreamsetdispatchqueue(_:_:).md)
- [CFRunLoopTimerGetTolerance(_:)](corefoundation/cfrunlooptimergettolerance(_:).md)
- [CFRunLoopTimerSetTolerance(_:_:)](corefoundation/cfrunlooptimersettolerance(_:_:).md)
- [CFURLEnumeratorCreateForDirectoryURL(_:_:_:_:)](corefoundation/cfurlenumeratorcreatefordirectoryurl(_:_:_:_:).md)
- [CFURLEnumeratorCreateForMountedVolumes(_:_:_:)](corefoundation/cfurlenumeratorcreateformountedvolumes(_:_:_:).md)
- [CFURLEnumeratorGetDescendentLevel(_:)](corefoundation/cfurlenumeratorgetdescendentlevel(_:).md)
- [CFURLEnumeratorGetNextURL(_:_:_:)](corefoundation/cfurlenumeratorgetnexturl(_:_:_:).md)
- [CFURLEnumeratorGetSourceDidChange(_:)](corefoundation/cfurlenumeratorgetsourcedidchange(_:).md)
- [CFURLEnumeratorGetTypeID()](corefoundation/cfurlenumeratorgettypeid().md)
- [CFURLEnumeratorSkipDescendents(_:)](corefoundation/cfurlenumeratorskipdescendents(_:).md)
- [CFURLIsFileReferenceURL(_:)](corefoundation/cfurlisfilereferenceurl(_:).md)
- [CFWriteStreamCopyDispatchQueue(_:)](corefoundation/cfwritestreamcopydispatchqueue(_:).md)
- [CFWriteStreamSetDispatchQueue(_:_:)](corefoundation/cfwritestreamsetdispatchqueue(_:_:).md)

## See Also

### Reference

- [CFStream](corefoundation/cfstream.md)
- [Core Foundation Structures](corefoundation/core-foundation-structures.md)
- [Core Foundation Enumerations](corefoundation/core-foundation-enumerations.md)
- [Core Foundation Constants](corefoundation/core-foundation-constants.md)
- [Core Foundation Data Types](corefoundation/core-foundation-data-types.md)
- [Core Foundation Macros](corefoundation/corefoundation-macros.md)