They are not alternatives, and the conversion to NSNumber is not optional. You
have to do all three.
— F
On 10 Aug 2012, at 9:58 AM, Koen van der Drift <koenvanderdr...@gmail.com>
wrote:
> Yeah, I saw the BETWEEN a bit later, I'll go ahead and try that. Or
> maybe turn my float into an NSNumber, I need to think how that works
> with the rest of my model.
>
> - Koen.
>
>
>
> On Fri, Aug 10, 2012 at 10:51 AM, Fritz Anderson
> <fri...@manoverboard.org> wrote:
>> On 10 Aug 2012, at 7:48 AM, Koen van der Drift <koenvanderdr...@gmail.com>
>> wrote:
>>
>>> On Fri, Aug 10, 2012 at 8:42 AM, Keary Suska <cocoa-...@esoteritech.com>
>>> wrote:
>>>>
>>>
>>>> Where in the predicate formatting guide
>>>> (https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Predicates/predicates.html)
>>>> does it show that your syntax is in any way valid?
>>>
>>> Well, it talks about using the greater than comparator in the Using
>>> Predicates section:
>>>
>>> NSDate *referenceDate = [NSDate dateWithTimeIntervalSince1970:0];
>>> NSPredicate *predicate = [NSPredicate predicateWithFormat:@"birthday >
>>> %@", referenceDate];
>>
>> Notice two differences between the documented example and the predicate you
>> propose:
>>
>> - The format specification in the example is %@, not a scalar. ("%@ is a var
>> arg substitution for an object value—often a string, number, or date.")
>>
>> - The predicate in the documentation does not chain binary comparisons. The
>> documentation doesn't show any operator precedence — even if legal, your
>> proposal might be read as [[%f < value] < %f]. It _does_ show a "BETWEEN"
>> operator.
>>
>> — F
>>
>
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