The `cffi` package is an extension that implements a Foreign Function Interface for Tcl.
It is based on the `dyncall` library available from https://dyncall.org.

The repository for the package is at https://github.com/apnadkarni/tcl-cffi.
Current version as of 2021-09-13 is 1.0a7.

Documentation pages are at https://cffi.magicsplat.com.

Source distributions and binary packages for some platforms are at
https://sourceforge.net/projects/magicsplat/files/cffi.

Distinguishing features of the package are

   * Automatic conversion of numerics, strings, structures and arrays to and from the corresponding Tcl script values

   * Safety mechanisms to protect against pointer errors like double frees, mismatched types

   * Support for automatic encoding of string values passed and returned from C functions
   * Exception generation based on error annotations
   * Proc-like argument processing with defaults, error messages etc.
   * Utilities for managing memory and conversion to native formats
   * Extensible type aliases for common system definitions
   * Introspection

Limitations (as of 1.0 Alpha 5) include

   * No support for arrays of non-scalars
   * No support of functions taking variable number of arguments
   * No support for callbacks from C code
   * No support for passing structs by value


***See also***
https://www.magicsplat.com/blog/cffi-libzip/%|%Driving Libzip with CFFI%|%

<<categories>> Foreign Interfaces