seanbaxter/circle

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

2574 stars · 72 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Circle is a C++ compiler by Sean Baxter that extends C++ with new language features like choice types, pattern matching, interfaces, and reflection traits while maintaining 100% compatibility with existing C++ code. Its 'New Circle' transformation introduces fine-grained versioning so projects can opt into safer, more productive language features.

Use cases

• compile C++ code with pattern matching and choice types
• try a modern C++ successor language with full compatibility
• use reflection and pack traits in C++ templates
• experiment with safer C++ language features via feature pragmas
• explore memory safety extensions for C++

When to choose

• you want cutting-edge C++ language features not yet in standard compilers
• you need 100% compatibility with existing C++ codebases while adopting new syntax
• you're researching C++ language evolution and memory safety

When to avoid

• you need a fully standard-conforming compiler for production portability
• you require a permissive open-source license (the repo has no license)
• you need long-term vendor support or a large community

Facets

cli-tool · maturity active

compiler programming-language programming-languages compilers developer-tools windows cpp cpp c++-compiler language-evolution pattern-matching reflection memory-safety circle-lang compiler linux macos

Member repositories

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markdown · JSON · MCP: product_card(name="seanbaxter/circle")