Obtaining an NSDecimalNumber from a locale specific string?
I have some string s that is locale specific (eg, 0.01 or 0,01). I want to convert this string to a NSDecimalNumber. From the examples I've seen thus far on the interwebs, this is accomplished by using an NSNumberFormatter a la:
NSString *s = @"0.07"; NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init]; [formatter setFormatterBehavior:NSNumberFormatterBehavior10_4]; [formatter setGeneratesDecimalNumbers:YES]; NSDecimalNumber *decimalNumber = [formatter numberFromString:s]; NSLog([decimalNumber stringValue]); // prints 0.07000000000000001
I'm using 10.4 mode (in addition to being recommended per the documentation, it is also the only mode available on the iPhone) but indicating to the formatter that I want to generate decimal numbers. Note that I've simplified my example (I'm actually dealing with currency strings). However, I'm obviously doing something wrong for it to return a value that illustrates the imprecision of floating point numbers.
What is the correct method to convert a locale specific number string to an NSDecimalNumber?
Edit: Note that my example is for simplicity. The question I'm asking also should relate to when you need to take a locale specific currency string and convert it to an NSDecimalNumber. Additionally, this can be expanded to a locale specific percentage string and convert it to a NSDecimalNumber.
+(NSDecimalNumber *)decimalNumberWithString:(NSString *)numericString in NSDecimalNumber.