CODEWITHSUNDEEP
iphonememory-management
user637530
user637530

Reputation:

one alloc, retainCount == 2

I have a following code:

NSLog(@"%d", [chart retainCount]);

self.chart = [[BNPieChart alloc] initWithFrame:self.view.frame];
NSLog(@"%d", [chart retainCount]);

Terminal shows:

[Session started at 2011-03-28 11:09:46 +0200.]
2011-03-28 11:09:51.008 Finance[35111:207] 0

2011-03-28 11:09:51.010 Finance[35111:207] 2

As I know, retainCount should be equal to 1, not 2.

Upvotes: 3

Views: 1149

Answers (5)

champak256
champak256

Reputation: 115

There are 3 possible problems I see:

  1. When you synthesized the chart property, it was synthesized with a retain attribute
  2. You have called retain in a self-implemented getter method
  3. Whoever wrote the initializer method for BNPieChart or its superclass's designated initializer had a retain in the initializer.

Have you seen the code for BNPieChart and its non-Cocoa superclasses? If you can, try to post the initializer code.

Upvotes: 0

unexpectedvalue
unexpectedvalue

Reputation: 6139

You chart property defined as retain or copy, so:

self.chart = [[BNPieChart alloc] initWithFrame:self.view.frame];

+1 retain at alloc ([BNPieChart alloc])
+1 retain at assignment (self.chart = )

Upvotes: 6

klefevre
klefevre

Reputation: 8735

chart is probably a retained property, that's why you have 2 retainCount. That's why you can see some declaration like that :

BNPieChart *aChart = [[BNPieChart alloc] initWithFrame:self.view.frame];
self.chart = aChart;
[aChart release];

Upvotes: 3

Mihir Mehta
Mihir Mehta

Reputation: 13843

Due to self in the statement its retain count is 2 as property of the chart is declared as retain Remove self from the statement

change 

 self.chart = [[BNPieChart alloc] initWithFrame:self.view.frame];

to 

 chart = [[BNPieChart alloc] initWithFrame:self.view.frame];

Upvotes: 1

hooleyhoop
hooleyhoop

Reputation: 9198

How do you know that the retainCount should be 1? Are you the author of the -setChart: method you are calling? How is it implemented? Why didn't you include it in the post?

Nothing you have posted here is suspicious.

Upvotes: 0

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