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paperh18648 margl-907 margr0 margt0 margb0 fi0 ri0 ql sb0 f1 fs24 Copyright f3 'e3f1 1994 by NeXT Computer, Inc. All Rights Reserved.
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fs36 NSNumber
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fs28 f0 b fs24 Inherits From:tab b0 fs28 f1 NSValue : NSObject
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fs28 s6 f0 b fs24 Conforms To:tab b0 fs28 f1 NSCoding, NSCopying (NSValue)
fi0 NSObject (NSObject)
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fs28 s7 fi-2771 f0 b fs24 Declared In:tab b0 fs28 f1 Foundation/NSValue.h
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fs28 Class Description
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fs28 NSNumber objects provide an object-oriented wrapper for the standard C-language number data types (b intb0 , b doubleb0 , etc.). The Foundation Kit'27s collection classes can store only objects, so this class provides a way to prepare numbers of various types for use with the collection classes.
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fs28 NSNumber, which inherits from NSValue, provides methods for creating number objects that contain data of a specified type. It also provides methods for extracting data from a number object and casting the data to be of a particular type. For determining whether two number objects are equal, NSNumber provides theb compare:b0 method.
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fs28 Allocating and Initializing
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fs28 fi-6552 + (NSNumber *)b numberWithBool:b0 (BOOL)i valuei0 tab Creates and returns a number object representing i valuei0 of the type b BOOLb0 .fs28
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fs28 fi-6552 + (NSNumber *)b numberWithChar:b0 (char)i valuei0 tab Creates and returns a number object representing i valuei0 of the type b charb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithDouble:b0 (double)i value
s9 li7030 fi-6553 fi-5796 i0 tab Creates and returns a number object representing i valuei0 of the type b doubleb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithFloat:b0 (float)i valuei0 tab Creates and returns a number object representing i valuei0 of the type b floatb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithInt:b0 (int)i valuei0 tab Creates and returns a number object representing i valuei0 of the type b intb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithLong:b0 (long)i valuei0 tab Creates and returns a number object representing i valuei0 of the type b longb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithLongLong:b0 (long long)i value
s9 li7030 fi-6553 fi-5796 i0 tab Creates and returns a number object representing i valuei0 of the type b long longb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithShort:b0 (short)i valuei0 tab Creates and returns a number object representing i valuei0 of the type b shortb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithUnsignedChar:b0 (unsigned char)i value
s9 li7030 fi-6553 fi-5796 i0 tab Creates and returns a number object representing i valuei0 of the type b unsigned charb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithUnsignedInt:b0 (unsigned int)i value
s9 li7030 fi-6553 fi-5796 i0 tab Creates and returns a number object representing i valuei0 of the type b unsigned intb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithUnsignedLong:b0 (unsigned long)i value
s9 li7030 fi-6553 fi-5796 i0 tab Creates and returns a number object representing i valuei0 of the type b unsigned longb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithUnsignedLongLong:b0 (unsigned long long)i value
s9 li7030 fi-6553 fi-5796 i0 tab Creates and returns a number object representing i valuei0 of the type b unsigned long longb0 .
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fs28 fi-6552 + (NSNumber *)b numberWithUnsignedShort:b0 (unsigned short)i value
s9 li7030 fi-6553 fi-5796 i0 tab Creates and returns a number object representing i valuei0 of the type b unsigned shortb0 .
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fs28 Accessing Data
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fs28 fi-6552 {f3 -} (BOOL)b boolValueb0 tab Returns the receiver'27s value as a boolean value.
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fs28 fi-6552 {f3 -} (char)b charValueb0 tab Returns the receiver'27s value as a character value.
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fs28 fi-6552 {f3 -} (double)b doubleValueb0 tab Returns the receiver'27s value as a double precision floating point value.
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fs28 fi-6552 {f3 -} (float)b floatValueb0 tab Returns the receiver'27s value as a single precision floating point value.
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fs28 fi-6552 {f3 -} (int)b intValueb0 tab Returns the receiver'27s value as a integer value.
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fs28 fi-6552 {f3 -} (long long)b longLongValueb0 tab Returns the receiver'27s value as a long long double precision floating point value.
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fs28 fi-6552 {f3 -} (long)b longValueb0 tab Returns the receiver'27s value as a long double precision floating point value.
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fs28 fi-6552 {f3 -} (short)b shortValueb0 tab Returns the receiver'27s value as a short integer value.
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fs28 fi-6552 {f3 -} (NSString *)b stringValueb0 tab Returns the receiver'27s value as a string contained in an NSString object.
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fs28 fi-6552 {f3 -} (unsigned char)b unsignedCharValueb0 tab Returns the receiver'27s value as an unsigned character value.
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fs28 fi-6552 {f3 -} (unsigned int)b unsignedIntValueb0 tab Returns the receiver'27s value as an unsigned integer value.
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fs28 fi-6552 {f3 -} (unsigned long long)b unsignedLongLongValueb0 tab Returns the receiver'27s value as an unsigned long long double precision floating point value.
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fs28 fi-6552 {f3 -} (unsigned long)b unsignedLongValueb0 tab Returns the receiver'27s value as an unsigned long double precision floating point value.
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fs28 fi-6552 {f3 -} (unsigned short)b unsignedShortValueb0 tab Returns the receiver'27s value as an unsigned short integer value.
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fs28 Comparing Data
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fs28 fi-6552 {f3 -} (NSComparisonResult)b compare:b0 (NSNumber *)i otherNumber
s9 li7030 fi-6553 fi-5796 i0 tab Compares the receiver to i otherNumberi0 , using ANSI C rules for type coersion, and returns an NSComparisonResult.
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