FLI type descriptor

Summary

Converts between Lisp and the C function type.

Package

fli

Syntax

:function &optional arg-spec return-spec

Arguments

arg-spec

A list of function argument types.

return-spec

A list of function return types.

Description

The FLI :function type allows for conversion from the C function type. It is typically used in conjunction with the :pointer type to reference an existing foreign function.

Example

The following code lines present a definition of a pointer to a function type, and a corresponding C definition of the type. The function type is defined for a function which takes as its arguments an integer and a pointer to a void, and returns an integer value.

(:pointer (:function (:int (:pointer :void)) :int)) int (*)( int, void * )

See Also

:pointer