Casting a CFErrorRef to an NSError (or opposite) with ARC
automatic-ref-counting, cocoa, objective-c
Solution
When you declare cfError you shouldn't use pointer *, you should use:
CFErrorRef cfError = nil;
NSError *error = (__bridge NSError *)cfError;
In the other way it works like that:
NSError *error = nil;
CFErrorRef ref = (__bridge CFErrorRef) error;
Hope this help.
Problem
I used to cast an NSError to CFErrorRef like this and using it in SMJobBless ``` NSError *error BOOL removed = SMJobRemove(kSMDomainSystemLaunchd, (CFStringRef) daemonBundleID, auth, true, (CFErrorRef*) &error); if (!removed) { NSLog(@"Failed to remove existing PacketTool"); [NSApp presentError: error]; } ``` As I've had errors with ARC, "Cast of an indirect pointer to an Obj-C pointer to 'CFErrorRef' is disallowed with ARC", I changed and decided to do the opposite ``` CFErrorRef *cfError = nil; BOOL blessed = SMJobBless(kSMDomainSystemLaunchd, (__bridge CFStringRef)daemonBundleID, auth, cfError); if (!blessed) { NSError *error = (__bridge NSError *)cfError; NSLog(@"Failed to bless PacketTool: %@", error); [NSApp presentError: error]; return FALSE; } ``` Now I've got an "Incompatible types casting 'CFErrorRef' to NSError *" with __bridge cast What can I do? Update: Thanks to Greg, correct code is now: ``` CFErrorRef cfError = nil; BOOL blessed = SMJobBless(kSMDomainSystemLaunchd, (__bridge CFStringRef) daemonBundleID, auth, &cfError); if (!blessed) { NSError *error = (__bridge NSError *)cfError; NSLog(@"Failed to bless PacketTool: %@", error); [NSApp presentError: error]; return FALSE; } ```