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August 29, 2015 13:59
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Use NSDecimalNumberHandler with NSDecimalNumber to round floating point value to closest value of specified precision (scale).
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| float toRound = 0.999322; | |
| short precision = 3; | |
| NSDecimalNumberHandler *handler = [NSDecimalNumberHandler decimalNumberHandlerWithRoundingMode:NSRoundPlain | |
| scale:precision | |
| raiseOnExactness:YES | |
| raiseOnOverflow:YES | |
| raiseOnUnderflow:YES | |
| raiseOnDivideByZero:YES]; | |
| float rounded = [[[NSDecimalNumber decimalNumberWithString:[[NSNumber numberWithFloat:toRound] stringValue]] decimalNumberByRoundingAccordingToBehavior:handler] floatValue]; | |
| NSLog(@"%f", rounded); |
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"Not too verbose"... maybe compared to other objc :p