Question

I want to create a basic CFTree with some string info in Objective-C.

This is my code

//CFtree attempt
NSString *info;
CFTreeContext ctx;

NSString *treeString = [[NSString alloc] initWithFormat:@"the tree string"];
info = treeString;

ctx.info = info;
CFTreeRef myTree = CFTreeCreate(NULL, &ctx);

I get an “EXC_BAD_ACESS” error on the last line.
Can someone please tell me how to configure this properly.

Answer 1

It seems that ctx should be initialized.

ctx.version = 0;
ctx.info = info;
ctx.retain = CFRetain;
ctx.release = CFRelease;
ctx.copyDescription = CFCopyDescription;