NSDecimalNumber
| NSDecimalNumber | Mac OS X 10.0 |
This subclass of NSNumber provides an object-oriented wrapper for performing base-10 arithmetic operations. Instances of NSDecimalNumber are created with a string such as "10.2e4" using decimalNumberWithString:, or by specifying the mantissa, exponent, and whether or not it is negative in the method decimalNumberWith-Mantissa:exponent:isNegative:.
Arithmetic operations are performed on two decimal number objects using methods such as decimalNumberByAdding:, decimalNumberByMultiplying:, and so forth. The value of the decimal number can be accessed as a double by sending a doubleValue message to the object.
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@interface NSDecimalNumber : NSNumber
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// Initializers |
- (id)initWithDecimal:(NSDecimal)dcm; |
- (id)initWithMantissa:(unsigned long long)mantissa exponent:(short)exponent isNegative:(BOOL)flag; |
- (id)initWithString:(NSString *)numberValue; |
- (id)initWithString:(NSString *)numberValue locale:(NSDictionary *)locale; |
// Class Methods |
+ (NSDecimalNumber *)decimalNumberWithDecimal:(NSDecimal)dcm; |
+ (NSDecimalNumber *)decimalNumberWithMantissa:(unsigned long long)mantissa exponent:(short)exponent isNegative:(BOOL)flag; |
+ (NSDecimalNumber *)decimalNumberWithString:(NSString *)numberValue; |
+ (NSDecimalNumber *)decimalNumberWithString:(NSString *)numberValue locale:(NSDictionary *)locale; |
+ (id <NSDecimalNumberBehaviors>)defaultBehavior;
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+ (NSDecimalNumber *)maximumDecimalNumber;
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+ (NSDecimalNumber *)minimumDecimalNumber;
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+ (NSDecimalNumber *)notANumber;
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+ (NSDecimalNumber *)one;
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+ (void)setDefaultBehavior:(id <NSDecimalNumberBehaviors>)behavior; |
+ (NSDecimalNumber *)zero;
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// Instance Methods |
- (NSComparisonResult)compare:(NSNumber *)decimalNumber; |
- (NSDecimalNumber *)decimalNumberByAdding:(NSDecimalNumber *)decimalNumber; |
- (NSDecimalNumber *)decimalNumberByAdding:(NSDecimalNumber *)decimalNumber withBehavior:(id <NSDecimalNumberBehaviors>)behavior; |
- (NSDecimalNumber *)decimalNumberByDividingBy:(NSDecimalNumber *)decimalNumber; |
- (NSDecimalNumber *)decimalNumberByDividingBy:(NSDecimalNumber *)decimalNumber withBehavior:(id <NSDecimalNumberBehaviors>)behavior; |
- (NSDecimalNumber *)decimalNumberByMultiplyingBy:(NSDecimalNumber *)decimalNumber; |
- (NSDecimalNumber *)decimalNumberByMultiplyingBy:(NSDecimalNumber *)decimalNumber withBehavior:(id <NSDecimalNumberBehaviors>)behavior; |
- (NSDecimalNumber *)decimalNumberByMultiplyingByPowerOf10:(short)power; |
- (NSDecimalNumber *)decimalNumberByMultiplyingByPowerOf10:(short)power withBehavior:(id <NSDecimalNumberBehaviors>)behavior; |
- (NSDecimalNumber *)decimalNumberByRaisingToPower:(unsigned)power; |
- (NSDecimalNumber *)decimalNumberByRaisingToPower:(unsigned)power |
withBehavior:(id <NSDecimalNumberBehaviors>)behavior; |
- (NSDecimalNumber *)decimalNumberByRoundingAccordingToBehavior: (id <NSDecimalNumberBehaviors>)behavior; |
- (NSDecimalNumber *)decimalNumberBySubtracting:(NSDecimalNumber *)decimalNumber; |
- (NSDecimalNumber *)decimalNumberBySubtracting:(NSDecimalNumber *)decimalNumber withBehavior:(id <NSDecimalNumberBehaviors>)behavior; |
- (NSDecimal)decimalValue;
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- (NSString *)descriptionWithLocale:(NSDictionary *)locale; |
- (double)doubleValue;
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- (const char *)objCType;
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