Suppose, I have C-arrays defined as follows:
int count = [dictionary count];
id __unsafe_unretained values[count];
id __unsafe_unretained keys[count];
I fill these arrays with:
[dictionary getObjects:values andKeys:keys];
Now, I would like to "reuse" these arrays through holding objects maintained by
ARC (if possible):
for (int i = 0; i < count; ++i) {
keys[i] = [keys[i] copy];
values[i] = [values[i]] copy];
}
NSDictionary *other = [NSDictionary dictionaryWithObjects:values forKeys:keys
count:count];
This won't work in ARC, since the arrays are declared __unsafe_unretained and
this would cause the newly created object immediately be deallocated once it is
assigned to the array's element.
What I would like to avoid is to use separate arrays (appropriately declared),
and also avoid to disable ARC and maintain the release counts manually.
Is there a way to extend the lifetime of the created objects, or is there a way
to "re-declare" the arrays so that ARC can maintain the references - or is
there any other simple "trick"?
Thanks for suggestions! ;)
Andreas
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