Replacing a specified dictionary in NSMutableArray - objective-c

Question

I'm trying to replace a dictionary in a mutable array.
Steps 1 through 4 should be good, but I'm having some trouble in step 5 - 6. Can you show me what has to be done to make this function work:
- (void) updatePlist {
// 1: String with plist path:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory
stringByAppendingPathComponent:#"Object.plist"];
// 2: Create a mutable dictionary containing current object and write
// "Yes" to the "Favorite" string:
NSMutableDictionary *mutDict = [NSMutableDictionary
dictionaryWithDictionary:[detailsDataSource objectAtIndex:detailIndex]];
[mutDict setObject:#"Yes" forKey:#"Favorite"];
// 3: Make a string containing current object name:
NSString *nameString = [[detailsDataSource objectAtIndex:detailIndex]
valueForKey:#"Name"];
// 4: Make a mutable array containing all objects:
NSArray *allObjectsArray = [[NSArray alloc] initWithContentsOfFile:path];
NSMutableArray *tmpMutArr = [NSMutableArray arrayWithArray:allObjectsArray];
// 5: Search for the dictionary in tmpMutArr with "Name" value matching nameString:
int *index;
for(int i=0;i<[tmpMutArr count];i++)
{
if([[tmpMutArr objectAtIndex:i] isKindOfClass:[NSDictionary class]])
{
NSMutableDictionary *tempDict = [tmpMutArr objectAtIndex:i];
if([[tempDict valueForKey:#"Name"] isEqualToString:[NSString
stringWithFormat:#"%#", nameString]])nameString];)
{
index = i;
}
}
}
// 6: Replace the old dictionary with the new one and write array to plist:
[tmpMutArr replaceObjectAtIndex:index withObject:
[NSDictionary dictionaryWithDictionary:mutDict]];
allObjectsArray = nil;
allObjectsArray = [[NSArray alloc] initWithArray:tmpMutArr];
[allObjectsArray writeToFile:path atomically:YES];
}
EDIT:
Now the problem is:
for(int i=0;i<[tmpMutArr count];i++)
{
if([[tmpMutArr objectAtIndex:i] isKindOfClass:[NSDictionary class]])
{
NSMutableDictionary *tempDict = [tmpMutArr objectAtIndex:i];
if([[tempDict valueForKey:#"Name"] isEqualToString:
[NSString stringWithFormat:#"%#", nameString]])nameString];)
{
index = i; // Here 1
}
}
}
// ---------------------------- v And here 2
[tmpMutArr replaceObjectAtIndex:index withObject:
[NSDictionary dictionaryWithDictionary:mutDict]];
1: Incompatible integer to pointer conversion assigning to 'int' from 'int'; take the adress with &
2: Incompatible pointer to integer conversion sending 'int *' to parameter of type NSUInteger' (aka 'unsigned int')

Answer 1

Replace the line:
if([tempDict valueForKey:#"Name" == [NSString stringWithFormat:#"", nameString];)
with this line:
if([[tempDict valueForKey:#"Name"] isEqualToString: [NSString stringWithFormat:#"%#", nameString]])
since you are using string comparison here.

Answer 2

As pointed out in the comments by Martin R, you are trying to save an int value into a int pointer variable.
int index; //instead of 'int *index;'
That change should do the trick.
It could have worked if you had written int *index; and then index = &i;, since you are saving a pointer to an integer that way. But it doesn't seem to be what you are trying to do.
The second error is due you are providing an int pointer instead of an integer to this method:
[tmpMutArr replaceObjectAtIndex:index withObject:
[NSDictionary dictionaryWithDictionary:mutDict]];
But declaring index as an integer solves both errors already.