iOS - Founcation -constants

Enumerations 列举

1.NSByteOrder  是由NSHostByteOrder返回  

enum _NSByteOrder {

   NS_UnknownByteOrder =CFByteOrderUnknown,  未知类型

   NS_LittleEndian =CFByteOrderLittleEndian,  小端字节字节顺序。

   NS_BigEndian =CFByteOrderBigEndian  大端字节字节顺序。  大端小端 可以网上搜索 

};

指定byte-order的格式

2.NSNotFound 请求不存在或者是不能被建立

NSNotFound is typically used by various methods and functions that search for items in serial data and return indices, such as characters in a string object orid objects in an NSArray object.

3.

NSEnumerationOptions

enum {

   NSEnumerationConcurrent = (1UL <<0),

   NSEnumerationReverse = (1UL <<1),

};

typedef NSUIntegerNSEnumerationOptions;

4 

NSComparisonResult  比较结果

enum {

   NSOrderedAscending = -1, 上升 

   NSOrderedSame,

   NSOrderedDescending  下降

};

typedef NSIntegerNSComparisonResult;

5.NSSortOptions

enum {

   NSSortConcurrent = (1UL <<0),

   NSSortStable = (1UL <<4),

};

typedef NSUIntegerNSSortOptions;

6.

NSQualityOfService

typedef NS_ENUM (NSInteger,

   NSQualityOfService ) {

   NSQualityOfServiceUserInteractive =0x21,

   NSQualityOfServiceUserInitiated =0x19,

   NSQualityOfServiceUtility =0x11,

   NSQualityOfServiceBackground =0x09,

   NSQualityOfServiceDefault = -1

};

7.

NSSearchPathDirectory

enum {

   NSApplicationDirectory =1,

   NSDemoApplicationDirectory,

   NSDeveloperApplicationDirectory,

   NSAdminApplicationDirectory,

   NSLibraryDirectory,

   NSDeveloperDirectory,

   NSUserDirectory,

   NSDocumentationDirectory,

   NSDocumentDirectory,

   NSCoreServiceDirectory,

   NSAutosavedInformationDirectory =11,

   NSDesktopDirectory =12,

   NSCachesDirectory =13,

   NSApplicationSupportDirectory =14,

   NSDownloadsDirectory =15,

   NSInputMethodsDirectory =16,

   NSMoviesDirectory =17,

   NSMusicDirectory =18,

   NSPicturesDirectory =19,

   NSPrinterDescriptionDirectory =20,

   NSSharedPublicDirectory =21,

   NSPreferencePanesDirectory =22,

   NSItemReplacementDirectory =99,

   NSAllApplicationsDirectory =100,

   NSAllLibrariesDirectory =101,

};

typedef NSUIntegerNSSearchPathDirectory;

 8.

NSSearchPathDomainMask

enum {

   NSUserDomainMask =1,

   NSLocalDomainMask =2,

   NSNetworkDomainMask =4,

   NSSystemDomainMask =8,

   NSAllDomainsMask =0x0ffff,

};

typedef NSUIntegerNSSearchPathDomainMask;

9.NSError Codes

NSError codes in the Cocoa error domain.

enum {

   NSFileNoSuchFileError =4,

   NSFileLockingError =255,

   NSFileReadUnknownError =256,

   NSFileReadNoPermissionError =257,

   NSFileReadInvalidFileNameError =258,

   NSFileReadCorruptFileError =259,

   NSFileReadNoSuchFileError =260,

   NSFileReadInapplicableStringEncodingError =261,

   NSFileReadUnsupportedSchemeError =262,

   NSFileReadTooLargeError =263,

   NSFileReadUnknownStringEncodingError =264,

   NSFileWriteUnknownError =512,

   NSFileWriteNoPermissionError =513,

   NSFileWriteInvalidFileNameError =514,

   NSFileWriteFileExistsError =516,

   NSFileWriteInapplicableStringEncodingError =517,

   NSFileWriteUnsupportedSchemeError =518,

   NSFileWriteOutOfSpaceError =640,

   NSFileWriteVolumeReadOnlyError =642,

   NSKeyValueValidationError =1024,

   NSFormattingError =2048,

   NSUserCancelledError =3072,

   NSFeatureUnsupportedError =3328,

   

   NSFileErrorMinimum =0,

   NSFileErrorMaximum =1023,

   NSValidationErrorMinimum =1024,

   NSValidationErrorMaximum =2047,

   NSFormattingErrorMinimum =2048,

   NSFormattingErrorMaximum =2559,

   

   NSPropertyListReadCorruptError =3840,

   NSPropertyListReadUnknownVersionError =3841,

   NSPropertyListReadStreamError =3842,

   NSPropertyListWriteStreamError =3851,

   NSPropertyListErrorMinimum =3840,

   NSPropertyListErrorMaximum =4095

   

   NSExecutableErrorMinimum =3584,

   NSExecutableNotLoadableError =3584,

   NSExecutableArchitectureMismatchError =3585,

   NSExecutableRuntimeMismatchError =3586,

   NSExecutableLoadError =3587,

   NSExecutableLinkError =3588,

   NSExecutableErrorMaximum =3839,

   

}

10.

URL Loading System Error Codes

enum

{

   NSURLErrorUnknown = -1,

   NSURLErrorCancelled = -999,

   NSURLErrorBadURL = -1000,

   NSURLErrorTimedOut = -1001,

   NSURLErrorUnsupportedURL = -1002,

   NSURLErrorCannotFindHost = -1003,

   NSURLErrorCannotConnectToHost = -1004,

   NSURLErrorDataLengthExceedsMaximum = -1103,

   NSURLErrorNetworkConnectionLost = -1005,

   NSURLErrorDNSLookupFailed = -1006,

   NSURLErrorHTTPTooManyRedirects = -1007,

   NSURLErrorResourceUnavailable = -1008,

   NSURLErrorNotConnectedToInternet = -1009,

   NSURLErrorRedirectToNonExistentLocation = -1010,

   NSURLErrorBadServerResponse = -1011,

   NSURLErrorUserCancelledAuthentication = -1012,

   NSURLErrorUserAuthenticationRequired = -1013,

   NSURLErrorZeroByteResource = -1014,

   NSURLErrorCannotDecodeRawData = -1015,

   NSURLErrorCannotDecodeContentData = -1016,

   NSURLErrorCannotParseResponse = -1017,

   NSURLErrorInternationalRoamingOff = -1018,

   NSURLErrorCallIsActive = -1019,

   NSURLErrorDataNotAllowed = -1020,

   NSURLErrorRequestBodyStreamExhausted = -1021,

   NSURLErrorFileDoesNotExist = -1100,

   NSURLErrorFileIsDirectory = -1101,

   NSURLErrorNoPermissionsToReadFile = -1102,

   NSURLErrorSecureConnectionFailed = -1200,

   NSURLErrorServerCertificateHasBadDate = -1201,

   NSURLErrorServerCertificateUntrusted = -1202,

   NSURLErrorServerCertificateHasUnknownRoot = -1203,

   NSURLErrorServerCertificateNotYetValid = -1204,

   NSURLErrorClientCertificateRejected = -1205,

   NSURLErrorClientCertificateRequired = -1206,

   NSURLErrorCannotLoadFromNetwork = -2000,

   NSURLErrorCannotCreateFile = -3000,

   NSURLErrorCannotOpenFile = -3001,

   NSURLErrorCannotCloseFile = -3002,

   NSURLErrorCannotWriteToFile = -3003,

   NSURLErrorCannotRemoveFile = -3004,

   NSURLErrorCannotMoveFile = -3005,

   NSURLErrorDownloadDecodingFailedMidStream = -3006,

   NSURLErrorDownloadDecodingFailedToComplete = -3007

}

11.

iCloud Error Codes

NSUbiquitousFileErrorMinimum =4352,

   NSUbiquitousFileUnavailableError =4353,

   NSUbiquitousFileNotUploadedDueToQuotaError =4354,

   NSUbiquitousFileUbiquityServerNotAvailable =4355,

   NSUbiquitousFileErrorMaximum =4607

12.

XPC Errors

NSXPCConnectionInterrupted =4097,

   NSXPCConnectionInvalid =4099,

   NSXPCConnectionReplyInvalid =4101,

   NSXPCConnectionErrorMinimum =4096,

   NSXPCConnectionErrorMaximum =4224

Global Variables

1.Cocoa Error Domain

NSString *constNSCocoaErrorDomain;

2.NSURL Domain

extern NSString *const NSURLErrorDomain;

Numeric Constants

1.NSDecimal Constants

#define NSDecimalMaxSize (8)

#define NSDecimalNoScale SHRT_MAX

2.

NSInteger and NSUInteger Maximum and Minimum Values

#define NSIntegerMax    LONG_MAX

#define NSIntegerMin    LONG_MIN

   

#define NSUIntegerMax   ULONG_MAX

Exceptions

1.General Exception Names

extern NSString *NSGenericException;

extern NSString *NSRangeException;

extern NSString *NSInvalidArgumentException;

extern NSString *NSInternalInconsistencyException;

extern NSString *NSMallocException;

extern NSString *NSObjectInaccessibleException;

extern NSString *NSObjectNotAvailableException;

extern NSString *NSDestinationInvalidException;

extern NSString *NSPortTimeoutException;

extern NSString *NSInvalidSendPortException;

extern NSString *NSInvalidReceivePortException;

extern NSString *NSPortSendException;

extern NSString *NSPortReceiveException;

extern NSString *NSOldStyleException;

Version Numbers

1.Foundation Version Number

2.Foundation Framework Version Numbers