How to compare two NSDecimalNumber values
Posted: | Author: Jörn | Filed under: iOS, Objective-C | Tags: Compare, NSDecimalNumber, NSNumber | No Comments »Recently I had to use NSDecimalNumber objects to avoid the rounding errors that come with float values. While comparing two float values is as easy as it gets comparing two NSDecimalNumbers works a bit different:
NSDecimalNumber is a subclass of NSNumber so you have to use NSNumber’s compare: method to compare the values:
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NSDecimalNumber *number1 = [NSDecimalNumber numberWithFloat:0.1]; NSDecimalNumber *number2 = [NSDecimalNumber numberWithFloat:0.2]; // check if number1 is less than number2 if ([number1 compare:number2] == NSOrderedAscending { NSLog(@"number1 is less than number2") } |
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