iOS 基础函数解析 - Foundation Functions
Reference
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Foundation Functions Reference
Overview
This chapter describes the functions and function-like macros defined in the Foundation Framework.
Functions by Task
Assertions
For additional information about Assertions, see Assertions and Logging Programming Guide.
NSAssertNSAssert1NSAssert2NSAssert3NSAssert4NSAssert5NSCAssertNSCAssert1NSCAssert2NSCAssert3NSCAssert4NSCAssert5NSCParameterAssertNSParameterAssert
Bundles
For additional information on generating strings files see “Using Strings Files for User-Facing Text” in Internationalization Programming Topics.
NSLocalizedStringNSLocalizedStringFromTableNSLocalizedStringFromTableInBundleNSLocalizedStringWithDefaultValue
Byte Ordering
NSConvertHostDoubleToSwappedNSConvertHostFloatToSwappedNSConvertSwappedDoubleToHostNSConvertSwappedFloatToHostNSHostByteOrderNSSwapBigDoubleToHostNSSwapBigFloatToHostNSSwapBigIntToHostNSSwapBigLongLongToHostNSSwapBigLongToHostNSSwapBigShortToHostNSSwapDoubleNSSwapFloatNSSwapHostDoubleToBigNSSwapHostDoubleToLittleNSSwapHostFloatToBigNSSwapHostFloatToLittleNSSwapHostIntToBigNSSwapHostIntToLittleNSSwapHostLongLongToBigNSSwapHostLongLongToLittleNSSwapHostLongToBigNSSwapHostLongToLittleNSSwapHostShortToBigNSSwapHostShortToLittleNSSwapIntNSSwapLittleDoubleToHostNSSwapLittleFloatToHostNSSwapLittleIntToHostNSSwapLittleLongLongToHostNSSwapLittleLongToHostNSSwapLittleShortToHostNSSwapLongNSSwapLongLongNSSwapShort
Decimals
You can also use the class NSDecimalNumber for decimal arithmetic.
NSDecimalAddNSDecimalCompactNSDecimalCompareNSDecimalCopyNSDecimalDivideNSDecimalIsNotANumberNSDecimalMultiplyNSDecimalMultiplyByPowerOf10NSDecimalNormalizeNSDecimalPowerNSDecimalRoundNSDecimalStringNSDecimalSubtract
Exception Handling
You can find the following macros implemented in NSException.h.
They are obsolete and should not be used. See Exception Programming Topics for information on
how to handle exceptions.
Managing Object Allocation and Deallocation
NSAllocateObjectNSCopyObjectNSDeallocateObjectNSDecrementExtraRefCountWasZeroNSExtraRefCountNSIncrementExtraRefCountNSShouldRetainWithZone
Interacting with the Objective-C Runtime
NSGetSizeAndAlignmentNSClassFromStringNSStringFromClassNSSelectorFromStringNSStringFromSelectorNSStringFromProtocolNSProtocolFromString
Logging Output
Managing File Paths
NSFullUserNameNSHomeDirectoryNSHomeDirectoryForUserNSOpenStepRootDirectoryNSSearchPathForDirectoriesInDomainsNSTemporaryDirectoryNSUserName
Managing Ranges
NSEqualRangesNSIntersectionRangeNSLocationInRangeNSMakeRangeNSMaxRangeNSRangeFromStringNSStringFromRangeNSUnionRange
Uncaught Exception Handlers
Whether there’s an uncaught exception handler function, any uncaught exceptions cause the program to terminate, unless the exception is raised during the posting of a notification.
Core Foundation ARC Integration
Managing Memory
NSAllocateMemoryPagesNSCopyMemoryPagesNSDeallocateMemoryPagesNSLogPageSizeNSPageSizeNSRealMemoryAvailableNSRoundDownToMultipleOfPageSizeNSRoundUpToMultipleOfPageSizeNSMakeCollectable
Managing Zones
Zones are ignored on iOS and 64-bit runtime on OS X. You should not use zones in current development.
NSCreateZoneNSRecycleZoneNSSetZoneNameNSZoneCallocNSZoneFreeNSZoneFromPointerNSZoneMallocNSZoneNameNSZoneReallocNSDefaultMallocZone
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