immutable collection given to mutating function error

[Michael Domino]

Hi all,




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I declare these pointers:

CFMutableDictionaryRef  prefMajorSectionCFMutableDictionaryRef = 0;
CFMutableDictionaryRef  prefMinorSectionCFMutableDictionaryRef = 0;

Then I obtain their values like this (this is just for a minor section):

                        const void* pVoid = 0;

                        
                        if(!present) {

                        } else {

                        }





Thanks for your advice.

Michael Domino
michael.dom...@identityfinder.com

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: 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 Boolean present = CFDictionaryGetValueIfPresent(prefMajorSectionCFMutableDictionaryRef, minorSectionKeyCFStringRef, &pVoid); prefMinorSectionCFMutableDictionaryRef = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); prefMinorSectionCFMutableDictionaryRef = static_cast<CFMutableDictionaryRef>(const_cast<void*>(pVoid)); If the section is not there and I create a new mutable CFDictionary, there is no error. If the section is there, I get the error. The question is: does CFDictionaryGetValueIfPresent always return an immutable object and is there another api call that will return a mutable dictionary? Am I doing this the wrong way?

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