Get Integer value from NSNumber in NSArray
I have an NSArray with NSNumber objects that have int values:
arrayOfValues = [[[NSArray alloc] initWithObjects: [NSNumber numberWithInt:1], [NSNumber numberWithInt:3], [NSNumber numberWithInt:5], [NSNumber numberWithInt:6], [NSNumber numberWithInt:7], nil] autorelease];
[arrayOfValues retain];
I'm trying to iterate through the array like this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %@", currentValue); // EXE_BAD_ACCESS
}
What am I doing wrong here?
objective-c ios iterator nsarray nsnumber
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
add a comment |
I have an NSArray with NSNumber objects that have int values:
arrayOfValues = [[[NSArray alloc] initWithObjects: [NSNumber numberWithInt:1], [NSNumber numberWithInt:3], [NSNumber numberWithInt:5], [NSNumber numberWithInt:6], [NSNumber numberWithInt:7], nil] autorelease];
[arrayOfValues retain];
I'm trying to iterate through the array like this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %@", currentValue); // EXE_BAD_ACCESS
}
What am I doing wrong here?
objective-c ios iterator nsarray nsnumber
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
add a comment |
I have an NSArray with NSNumber objects that have int values:
arrayOfValues = [[[NSArray alloc] initWithObjects: [NSNumber numberWithInt:1], [NSNumber numberWithInt:3], [NSNumber numberWithInt:5], [NSNumber numberWithInt:6], [NSNumber numberWithInt:7], nil] autorelease];
[arrayOfValues retain];
I'm trying to iterate through the array like this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %@", currentValue); // EXE_BAD_ACCESS
}
What am I doing wrong here?
objective-c ios iterator nsarray nsnumber
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
I have an NSArray with NSNumber objects that have int values:
arrayOfValues = [[[NSArray alloc] initWithObjects: [NSNumber numberWithInt:1], [NSNumber numberWithInt:3], [NSNumber numberWithInt:5], [NSNumber numberWithInt:6], [NSNumber numberWithInt:7], nil] autorelease];
[arrayOfValues retain];
I'm trying to iterate through the array like this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %@", currentValue); // EXE_BAD_ACCESS
}
What am I doing wrong here?
objective-c ios iterator nsarray nsnumber
objective-c ios iterator nsarray nsnumber
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
edited Nov 12 at 14:15
Jon Schneider
13.1k783118
13.1k783118
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
asked Aug 1 '12 at 3:48
Phill Pafford
47.5k76239364
47.5k76239364
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
You are using the wrong format specifier. %@ is for objects, but int is not an object. So, you should be doing this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %d", currentValue); // EXE_BAD_ACCESS
}
More information in the docs.
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
I thought %@ was a wild card so I could pass anything
– Phill Pafford
Aug 1 '12 at 3:56
4
You can pass any object, but like I said, int is not an object.
– sosborn
Aug 1 '12 at 3:57
thanks, this does help with clarification and the error. having a DOH! (slap hand on head) moment
– Phill Pafford
Aug 1 '12 at 3:58
add a comment |
This worked for me when creating an NSArray of enum values I wanted to call (which is useful to know that this is the proper solution for that) I'm using Xcode 6.4.
int currentValue = (int)[(NSNumber *)[arrayOfValues objectAtIndex:i] integerValue];
sosborn's answer will throw a warning since it is still necessary to cast the NSInteger to an int.
Typecasting in ObjC is the bane of my existence. I hope this helps someone!
answered Aug 7 '15 at 16:27
jungledev
2,1381937
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You are using the wrong format specifier. %@ is for objects, but int is not an object. So, you should be doing this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %d", currentValue); // EXE_BAD_ACCESS
}
More information in the docs.
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
I thought %@ was a wild card so I could pass anything
– Phill Pafford
Aug 1 '12 at 3:56
4
You can pass any object, but like I said, int is not an object.
– sosborn
Aug 1 '12 at 3:57
thanks, this does help with clarification and the error. having a DOH! (slap hand on head) moment
– Phill Pafford
Aug 1 '12 at 3:58
add a comment |
You are using the wrong format specifier. %@ is for objects, but int is not an object. So, you should be doing this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %d", currentValue); // EXE_BAD_ACCESS
}
More information in the docs.
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
I thought %@ was a wild card so I could pass anything
– Phill Pafford
Aug 1 '12 at 3:56
4
You can pass any object, but like I said, int is not an object.
– sosborn
Aug 1 '12 at 3:57
thanks, this does help with clarification and the error. having a DOH! (slap hand on head) moment
– Phill Pafford
Aug 1 '12 at 3:58
add a comment |
You are using the wrong format specifier. %@ is for objects, but int is not an object. So, you should be doing this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %d", currentValue); // EXE_BAD_ACCESS
}
More information in the docs.
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
You are using the wrong format specifier. %@ is for objects, but int is not an object. So, you should be doing this:
int currentValue;
for (int i = 0; i < [arrayOfValues count]; i++)
{
currentValue = [(NSNumber *)[arrayOfValues objectAtIndex:i] intValue];
NSLog(@"currentValue: %d", currentValue); // EXE_BAD_ACCESS
}
More information in the docs.
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
answered Aug 1 '12 at 3:54
sosborn
14.1k23543
14.1k23543
I thought %@ was a wild card so I could pass anything
– Phill Pafford
Aug 1 '12 at 3:56
4
You can pass any object, but like I said, int is not an object.
– sosborn
Aug 1 '12 at 3:57
thanks, this does help with clarification and the error. having a DOH! (slap hand on head) moment
– Phill Pafford
Aug 1 '12 at 3:58
add a comment |
I thought %@ was a wild card so I could pass anything
– Phill Pafford
Aug 1 '12 at 3:56
4
You can pass any object, but like I said, int is not an object.
– sosborn
Aug 1 '12 at 3:57
thanks, this does help with clarification and the error. having a DOH! (slap hand on head) moment
– Phill Pafford
Aug 1 '12 at 3:58
I thought %@ was a wild card so I could pass anything
– Phill Pafford
Aug 1 '12 at 3:56
I thought %@ was a wild card so I could pass anything
– Phill Pafford
Aug 1 '12 at 3:56
4
4
You can pass any object, but like I said, int is not an object.
– sosborn
Aug 1 '12 at 3:57
You can pass any object, but like I said, int is not an object.
– sosborn
Aug 1 '12 at 3:57
thanks, this does help with clarification and the error. having a DOH! (slap hand on head) moment
– Phill Pafford
Aug 1 '12 at 3:58
thanks, this does help with clarification and the error. having a DOH! (slap hand on head) moment
– Phill Pafford
Aug 1 '12 at 3:58
add a comment |
This worked for me when creating an NSArray of enum values I wanted to call (which is useful to know that this is the proper solution for that) I'm using Xcode 6.4.
int currentValue = (int)[(NSNumber *)[arrayOfValues objectAtIndex:i] integerValue];
sosborn's answer will throw a warning since it is still necessary to cast the NSInteger to an int.
Typecasting in ObjC is the bane of my existence. I hope this helps someone!
answered Aug 7 '15 at 16:27
jungledev
2,1381937
add a comment |
This worked for me when creating an NSArray of enum values I wanted to call (which is useful to know that this is the proper solution for that) I'm using Xcode 6.4.
int currentValue = (int)[(NSNumber *)[arrayOfValues objectAtIndex:i] integerValue];
sosborn's answer will throw a warning since it is still necessary to cast the NSInteger to an int.
Typecasting in ObjC is the bane of my existence. I hope this helps someone!
answered Aug 7 '15 at 16:27
jungledev
2,1381937
add a comment |
This worked for me when creating an NSArray of enum values I wanted to call (which is useful to know that this is the proper solution for that) I'm using Xcode 6.4.
int currentValue = (int)[(NSNumber *)[arrayOfValues objectAtIndex:i] integerValue];
sosborn's answer will throw a warning since it is still necessary to cast the NSInteger to an int.
Typecasting in ObjC is the bane of my existence. I hope this helps someone!
answered Aug 7 '15 at 16:27
jungledev
2,1381937
This worked for me when creating an NSArray of enum values I wanted to call (which is useful to know that this is the proper solution for that) I'm using Xcode 6.4.
int currentValue = (int)[(NSNumber *)[arrayOfValues objectAtIndex:i] integerValue];
sosborn's answer will throw a warning since it is still necessary to cast the NSInteger to an int.
Typecasting in ObjC is the bane of my existence. I hope this helps someone!
answered Aug 7 '15 at 16:27
jungledev
2,1381937
edited Nov 1 '15 at 21:41
answered Aug 7 '15 at 16:27
jungledev
2,1381937
answered Aug 7 '15 at 16:27
jungledev
2,1381937
answered Aug 7 '15 at 16:27
jungledev
2,1381937
2,1381937
add a comment |
add a comment |
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