UInt64 sum = 16494631536958187520UL; double doubleSum = sum; NSString *strSum = [ NSNumberFormatter localizedStringFromNumber: @(doubleSum) numberStyle: NSNumberFormatterDecimalStyle ]; NSLog(@"%s DecimalStyle (of double): %@; UInt64: %llu, double: %.22g",__FUNCTION__, strSum, sum, doubleSum );
This prints: DecimalStyle (of double): 16,494,631,536,958,200,000; UInt64: 16494631536958187520, double: 16494631536958187520 Note: converting to double does NOT loose any digits. But NSNumberFormatter does. Why? I also tried: NSNumberFormatter *nf = [ [ NSNumberFormatter alloc ] init ]; [ nf setNumberStyle: NSNumberFormatterDecimalStyle ]; [ nf setUsesSignificantDigits: YES ]; [ nf setMaximumSignificantDigits: 22 ]; NSString *str2Sum = [ nf stringFromNumber: @(doubleSum) ]; But the result is the same. Gerriet. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com