Qunar Tech Salon
Aug 10, 2017 · Fundamentals
Understanding Deep and Shallow Copy in Objective‑C Collections and Memory Management
This article explains the concepts of shallow and deep copying in Objective‑C, detailing how pointers, memory regions, and collection types behave under copy and mutableCopy, introducing three copy levels (CL1‑CL3), and highlighting common pitfalls and best practices for safe memory management.
Memory ManagementMutableCopyObjective‑C
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