cangjie-cffi

What problem does it solve?

This Skill enables robust cross-language interoperation between Cangjie and C/C++ code. It standardizes how to declare external C functions, map C structs, pass inout pointers, manage memory via LibC, and construct safe callbacks using CFunc and CString, reducing boilerplate and risk.

Core Features & Use Cases

• Foreign declarations: declare external C functions from Cangjie with optional @C qualifiers, and call them inside unsafe blocks.
• CFunc and inout: define function pointers and automatically pass addresses for inout parameters, enabling bidirectional callbacks.
• Memory management: allocate and free native memory via LibC, work with CPointer<T>, CString, and resource management utilities.
• Interop workflows: Create and manipulate C pointers, maps between C types and Cangjie types, and implement C callbacks from Cangjie side.
• Use Case: Build a plugin or extension that integrates with an existing C API, handling strings and structured data safely from Cangjie.

Quick Start

Use the cangjie-cffi skill to declare a foreign function and call it from Cangjie inside an unsafe block.