Exploring allocator design in C, C3, Hare, Odin, Rust, and Zig.

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Anton Zhiyanov

Memory allocators in modern systems languages treat allocation as a first-class concern with explicit interfaces, unlike C's traditional global malloc/free approach. Rust uses a global allocator with the GlobalAlloc trait, Zig requires explicit allocator parameters for all allocations, Odin provides implicit context allocators with optional overrides, C3 offers both heap and temp allocators with compile-time selection, and Hare uses a single global allocator. The article demonstrates implementing a modern allocator interface in C with proper error handling, alignment support, and custom implementations like arena allocators.

Allocators from C to Zig

<p>C is a giant pioneer. It’s great that we have those other languages built with experience and preferences forged by using what was available before.</p>
