Simplified Model of Fil-C: A Memory-Safe C/C++ Implementation

Summary

Peter Cawley (corsix) published a technical explainer on Fil-C, a project that aims to make C and C++ memory-safe through automated code transformation. The blog post presents a simplified mental model of how Fil-C works: every pointer in a program gains an accompanying AllocationRecord that tracks the bounds and validity of the memory it references, enabling runtime safety checks against out-of-bounds access, use-after-free, and other memory safety violations. The post explains how Fil-C's pro