Why did happened warning?

Question

I wrote code.

But its code happen warning.

Its warning text is

Incompatible integer to pointer conversion assigning to 'NSInteger *' (aka 'int *') from 'NSInteger' (aka 'int')

This is code that is causing the warning.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{

    ...

    apd.newyear = [newys integerValue];//Its error happen on this row.

    apd.newmonth = [newms integerValue];//Its error happen on this row.

    [self dismissViewControllerAnimated:YES completion:nil];

}

Oh actually, it looks like you've defined a property as a pointer. i.e. `@property (nonatomic) int *newyear;` Just remove the * — Fogmeister, Aug 21 '13 at 14:16
It might help if you *read* and *understand* the answers to your previous question http://stackoverflow.com/questions/18338800/why-did-happen-exc-bad-access-and-sigabrt-when-set-integer. — Martin R, Aug 21 '13 at 14:25

score 13 · Accepted Answer · answered Aug 21 '13 at 14:16

The error is pretty clear.

newyear and newmonth both have type NSInteger * and you're trying to assign a NSInteger to them.

NSInteger is not an object, it's native C value, so you probably made a mistake in defining the two properties on your apd object.

I bet you have something like

@property NSInteger * newyear;

whereas it should be

@property NSInteger newyear;

score 2 · Answer 2 · answered Aug 21 '13 at 14:16

You have declared your NSInteger instance variables as pointers, which they shouldn't be (they are not objects):

@interface apd : NSObject
{
    NSInteger *newyear;
    NSInteger *newmonth;
}
...
@end

(or you've done this via @propertys):

@property (assign, nonatomic) NSInteger *newyear;
@property (assign, nonatomic) NSInteger *newmonth;

Just change them to plain NSInteger.

score 2 · Answer 3 · answered Aug 21 '13 at 14:17

2

I think you've declared newmonth and newyear as pointers...

@property (nonatomic) int *newyear;
@property (nonatomic) int *newmonth;

Just remove the * from these lines.

answered Aug 21 '13 at 14:17

Fogmeister

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score 0 · Answer 4 · answered Aug 22 '13 at 08:58

0

i think this might be useful..try it

@interface abc : NSObject { NSInteger firstint; NSInteger secondint; } @property (nonatomic,readwrite) NSInteger firstint; @property (nonatomic,readwrite) NSInteger secondint; @end

answered Aug 22 '13 at 08:58

iKambad

351
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2
13

Why did happened warning?

4 Answers4