Build Info: This build of the (draft) spec is based on git commit 8b2ba2204e06264302f3b766d189b5110bf34820
The 2025-12-26 revision of the draft spec is the 2nd feature-complete beta, and is ready to be implemented for testingThe 'cxing' programming language (with or without caps) is a general-purpose programming language with a C-like syntax that is memory-safe, aims to be thread-safe, and have surprise-free semantics. It aims to fit into and interoperate with the existing ecosystem written in other languages, with C as its starting point.
It attempts to pioneer in the field of efficient, expressive, and robust error handling using language design toolsets.
The language is meant to be an open standard with multiple independent implementations that are widely interoperable. It can be implemented either as interpreted or as compiled. Programs written in cxing should be no less portable than when it's written in C.
Features are introduced on strictly maintainable basis. The reference implementation will be an AST-based interpreter (or a transpiler to C?), which will serve as instrument of verification for additional implementations. The version of the language (if it ever changes) will be independent of the versions of the implementations.
The see section 2. Features for more information on how the goals are achieved.
Just as Java is a beautiful island in Indonesia, we wanted a name that pride ourselves as Earth-Loving Chinese here in Shanghai, therefore we choose to name our language after the National Nature Reserve Park of Changxing Island. However, the name is too long to be used directly, and "changx" looked too much like 'clang', so we simplified it to "cxing", which we find both pleasure in looking at it, and the name giving connotation with an information technology product.
The language itself and the reference implementation are released into the public domain.