May 2003
Intermediate to advanced
566 pages
27h 29m
English
Content preview from Cocoa in a Nutshell
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Name
NSDecimalNumberHandler — Mac OS X 10.0
Synopsis
This class is used to customize the behavior of
NSDecimalNumber-based arithmetic without having to
subclass. In particular, NSDecimalNumberHandler
allows clients to specify how NSDecimalNumber
objects should handle rounding and errors.
|
|
@interface NSDecimalNumberHandler : NSObject <NSCoding, NSDecimalNumberBehaviors>
|
// Initializers
|
- (id)initWithRoundingMode:(NSRoundingMode)roundingMode scale:(short)scale raiseOnExactness:(BOOL)exact raiseOnOverflow:(BOOL)overflow raiseOnUnderflow:(BOOL)underflow raiseOnDivideByZero:(BOOL)divideByZero; |
// Class Methods
|
+ (id)decimalNumberHandlerWithRoundingMode:(NSRoundingMode)roundingMode scale:(short)scale raiseOnExactness:(BOOL)exact raiseOnOverflow:(BOOL)overflow raiseOnUnderflow:(BOOL)underflow raiseOnDivideByZero:(BOOL)divideByZero; |
+ (id)defaultDecimalNumberHandler;
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// Methods Implementing NSCoding
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- (void)encodeWithCoder:(NSCoder *)aCoder; |
- (id)initWithCoder:(NSCoder *)aDecoder; |
// Methods Implementing NSDecimalNumberBehaviors
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- (NSRoundingMode)roundingMode;
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- (short)scale;
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- (NSDecimalNumber *)exceptionDuringOperation:(SEL)operation error:(NSCalculationError)error leftOperand:(NSDecimalNumber *)leftOperand rightOperand:(NSDecimalNumber *)rightOperand; |
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