seniorObjective-C
How does Objective-C bridge to C memory management?
Updated May 17, 2026
Short answer
Bridging requires explicit ownership management between ARC and Core Foundation.
Deep explanation
ARC manages NSObject lifetimes, but Core Foundation uses manual retain/release. Bridging keywords like __bridge, __bridge_transfer, and CFBridgingRelease define ownership transfer rules. Incorrect bridging causes leaks or double frees.
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