Philippe Gaultier 5/3/2024

How to rewrite a C++ codebase successfully

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This article details a practical strategy for incrementally rewriting a complex and critical legacy C++ codebase. It covers obtaining team buy-in, preparation, and the technical process of introducing a new language (Rust) to improve correctness, maintainability, and security. It addresses common pitfalls like FFI bugs and argues why an incremental rewrite can succeed where a from-scratch rewrite often fails.

How to rewrite a C++ codebase successfully

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