Faster C++ code intelligence for Copilot CLI with Whole Codebase Indexing

This article discusses the improvements in C++ code intelligence for GitHub Copilot CLI through Whole Codebase Indexing, which enhances navigation and symbol searching in large repositories.

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C++ repositories can contain millions of lines of code spread across deeply connected source files and headers. Without a reusable index, navigating to definitions, finding references, or searching for symbols may require portions of that information to be analyzed again as you move through the repository.

C++ code intelligence in GitHub Copilot CLI is now faster with support for Whole Codebase Indexing (WCI) . Powered by the Microsoft C++ Language Server , WCI uses your project’s compilation information to maintain a persistent index of symbols and relationships across source files and headers, allowing Copilot CLI to understand the codebase without repeatedly parsing it from scratch.

Because the index runs directly within the CLI experience, an IDE does not need to be open to…

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