Rust Programmers Can't Understand Basic C Programming: Linked Lists and Hand-Holding
Architectural audit and technical critique regarding the implementation of fundamental data structures—specifically linked lists—within the Rust ecosystem versus low-level C programming. This documentation analyzes the mechanical limitations of the Rust borrow checker when dealing with manual memory management, noting the necessity of unsafe blocks for implementing non-trivial structures like linked lists. By auditing the cache performance of singly linked lists (1 pointer + data) versus the standard library's doubly linked lists (2 pointers), this reference provides technical justification for prioritizing singly linked lists in performance-critical or cache-constrained environments (e.g., L1 cache line management on 64-bit architectures). The session evaluates the transition from functional data structure design to the "midwit" advocacy for universal array reallocation, documenting how the Rust "hand-holding" paradigm often obscures the technical necessity for specialized, low-overhead structures in kernel-level and systems development. This reference serves as a critical assessment of the "Rewrite-in-Rust" movement’s failure to address the unique constraints of freestanding (non-standard library) environments where automated safety abstractions become liabilities.
Linked lists are carcinogenic to Rustaceans. I faltered a bit on something but editing requires actual effort, so watch for the comments saying I don't know the difference between a binary tree and a linked list despite catching it and correcting it live.
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