Re: Number Formatting
Re: Number Formatting
- Subject: Re: Number Formatting
- From: Esteban <email@hidden>
- Date: Sat, 1 Dec 2001 14:04:38 -0800
That's wierd, I ran a couple of tests, myself even trying to split the
2000 into its mantissa, exponent, and whether the mantissa was negative
as NSDecimalNumber decimalNumberWithMantissa:exponent:isNegative calls
for.
I also used the NSScanner to scan the UnsignedLongLong as a NSDecimal
and then using NSDecimalNumber decimalNumberWithDecimal, only to get the
same results as David Clark.
Maybe the problem is the assumption at the use of this. NSDecimalNumber
is probably not used for converting Currency (as David appears to be
trying to do) between locales, and rather it is only useful for decimal
numbers with decimal points (or commas depending on where you live etc)
and converting the decimal representations between locales?
setting the mantissa as 123, the exponent as -2, and the isNegative as
NO, properly ends up with 1.23 as it should (at least in U.S. Decimal
representation)
Might NSNumberFormatter be more appropriate for currency conversion
between locales? Especially if you are using NSCells to hold the
unsigned long long numbers....
Anyone with any ideas? Although i'm thinking its probably a good idea
to look at apple's currency converter but i think that deals with
NSNumberFormatter and NSCells...
-Esteban
On Friday, November 30, 2001, at 01:15 PM, davidjclark wrote:
Hello,
Can someone clue me in on why the following code does not work ?
The number returned by descriptionWithLocale: is not being formatted as
it should be. For instance, if theNumber is 2000, theString is returned
as 2000. It should be returning 2,000.
- ( NSString * ) _commaDelimitedSize:(UInt64) theNumber
{
NSDecimalNumber *decimalNumber;
NSString *theString;
decimalNumber = [ NSDecimalNumber
numberWithUnsignedLongLong:theNumber ];
theString = [ decimalNumber descriptionWithLocale:[ [NSUserDefaults
standardUserDefaults] dictionaryRepresentation ] ];
NSLog(@"The String : %@", theString );
return theString;
}
TIA,
David
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