On Feb 22, 2009, at 11:17 AM, Michael Domino wrote:
I have a situation where I'm writing a preferences file and I have a
major section and one or more minor sections, like this:
Settings
Logging
Initialization
Everything actually works fine, except that I get this error when
writing a minor section:
2009-02-22 10:10:56.466 Identity Finder[40754:813]
CFDictionarySetValue(): immutable collection 0x11ad8f0 given to
mutating function
[...]
The question is: does CFDictionaryGetValueIfPresent always return an
immutable object
No. It returns the value that's in the dictionary.
and is there another api call that will return a mutable dictionary?
Am I doing this the wrong way?
The problem isn't in how you're getting stuff out of your dictionary,
it's how the dictionary is created and filled. I suspect you're using
the CFPropertyList or CFPreferences APIs, which by default give you
immutable object graphs.
By the way, none of this is Cocoa-specific. Perhaps Cocoa-Dev isn't
the best list for this.
Regards,
Ken
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