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Pointer Stability for ArrayLists

Zig's std.ArrayList gains pointer stability locks, extending a technique previously available in Hash Map containers since 2024. Users can now call lockPointers() before storing pointers to ArrayList elements and unlockPointers() when done, preventing use-after-reallocation bugs.

Background

Zig is a systems programming language focused on safety and performance. Pointer stability in collections has been a long-requested feature for memory-safe idiomatic use.

Source
Lobsters
Published
Aug 29, 2026 at 01:39 AM
Score
7.0 / 10