An Objective-C unsigned integer
An Objective-C unsigned integer
typedef unsigned long NSUInteger;
Questions tagged [nsuinteger]
83 questions
73
votes
2 answers
What NSNumber (Integer 16, 32, 64) in Core Data should I use to keep NSUInteger
I want to keep NSUInteger into my core data and I don't know which type should I use (integer 16, 32, 64) to suit the space needed.
From my understanding:
Integer 16 can have minimum value of -32,768 to 32,767
Integer 32 can have minimum value of…
sarunw
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36
votes
2 answers
Difference between int, NSInteger and NSUInteger
What is the main difference between int, NSInteger and NSUInteger in Objective-C?
Which one is better to use in an application and why?
Hitarth
- 1,836
- 3
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- 49
28
votes
4 answers
How do I convert NSUInteger value to int value in objectiveC?
How do I convert NSUInteger value to int value in objectiveC?
and also how to print NSUInteger value in NSLog , I tried %@,%d,%lu these are not working and throwing Ex-Bad Access error.
Thank you
GR.
- 435
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25
votes
5 answers
How do you convert an NSUInteger into an NSString?
How do you convert an NSUInteger into an NSString? I've tried but my NSString returned 0 all the time.
NSUInteger NamesCategoriesNSArrayCount = [self.NamesCategoriesNSArray count];
NSLog(@"--- %d", NamesCategoriesNSArrayCount); …
user563496
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23
votes
4 answers
Convert NSInteger to NSUInteger?
I am trying to convert a NSInteger to a NSUInteger and I googled it and found no real answer. How would I do this?
SimplyKiwi
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14
votes
4 answers
NSString to NSUInteger
I've got a number in a NSString @"15". I want to convert this to NSUInteger, but I don't know how to do that...
dododedodonl
- 4,427
- 6
- 28
- 42
13
votes
2 answers
How to convert typedef enum to NSNumber?
Is each value of a typedef enum treated as an int?
E.g., given the following typedef enum:
// UIView.h
typedef enum {
UIViewAnimationCurveEaseInOut,
UIViewAnimationCurveEaseIn,
UIViewAnimationCurveEaseOut,
…
ma11hew28
- 106,283
- 107
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- 616
12
votes
3 answers
Why doesn't cocoa use the same enum declaration style everywhere?
I was wondering what is the rationale behind different styles of enum declaration on cocoa?
Like this:
enum { constants.. }; typedef NSUInteger sometype;
Is the reason to use typedef to get assigments to NSUInteger to work without casting?…
Simo Salminen
- 2,306
- 2
- 14
- 11
9
votes
1 answer
Why NSInteger instead of NSUInteger in "numberOfSectionInTableView:"?
The UITableView data source method numberOfSectionsInTableView: has a return type of NSInteger. However, a UITableView cannot have a negative amount of rows; it has 0 or greater rows, so why is the return type of NSInteger? Doesn't that allow for…
pasawaya
- 11,364
- 7
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- 92
6
votes
3 answers
NSIntegerMax vs NSUIntegerMax
NSUInteger index = [self.objects indexOfObject:obj];
if (index == NSNotFound) {
// Success! Note: NSNotFound internally uses NSIntegerMax
}
if (index == NSUIntegerMax) {
// Fails!
}
Why? I'm suppose to get an unsigned value as a result of…
Mustafa
- 20,108
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6
votes
1 answer
Using Multiple NSUInteger enums as a parameter to a method
I'm trying to make a method with a similar format to the setAutoresizingMask: method of NSView. I want to have someone be able to specify multiple values that i declared in my enum (NSHeightSizable | NSWidthSizable) like in autoresizing mask. How…
Alex Zielenski
- 3,491
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6
votes
1 answer
Is there a better way to avoid 'Sign comparison' warning when comparing NSIndexPath's row and NSArray count?
I turned 'Signed Comparision' (aka -Wsign-compare) warnings for my iOS project in XCode (surprisingly, it was off by default). After that lots of warnings like this appeared:
/Users/michalciuba/projects/GlobeMobile/Classes/ACMailController.m:86:19:…
Michał Ciuba
- 7,611
- 2
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- 56
5
votes
1 answer
May I use NSCoder::encodeInteger:forKey: and decodeIntegerForKey: methods with argument of type NSUInteger?
I need to encode and decode property of type NSUInteger with NSCoder.
Is it safe to use NSCoder::encodeInteger:forKey: and NSCoder::decodeIntegerForKey: methods for that?
The other way around that comes to my mind is to wrap the unsigned integer…
Rasto
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5
votes
2 answers
Implicit conversion loses integer precision: 'long long' to 'NSInteger' (aka 'int')
I am trying to assign a variable with type 'long long' to a type NSUInteger, What is the correct way to do that?
my code line:
expectedSize = response.expectedContentLength > 0 ? response.expectedContentLength : 0;
where expectedSize is of type…
Firdous
- 4,436
- 12
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- 76
4
votes
1 answer
Handling 64 bit integers on a 32 bit iPhone
I would like to handle 64 bit unsigned integers on a iPhone 4s (which of course has a 32 bit ARM 6 processor).
When trying to work with 64 bit unsigned integers, e.g. Twitter IDs, I have the following problem:
// Array holding the 64 bit integer IDs…
AlexR
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