5 Function and Macro Reference

pointer-element-type

Function

Summary

Returns the type of the foreign object pointed to by an FLI pointer.

Package

fli

Signature

pointer-element-type pointer => type

Arguments

Values

Description

The functionpointer-element-type returns the type of the foreign object pointed to by pointer.

Example

In the following example a pointer to an integer is defined, andpointer-element-type is used to confirm that the pointer points to an integer.

(setq point (fli:allocate-foreign-object :type :int))

(fli:pointer-element-type point)

: In the next example a new type,HAPPY, is defined. The pointerpoint is set to point to an instance ofHAPPY, andpointer-element-type is used to find the type of the object pointed to bypoint.

(fli:define-c-typedef HAPPY :long)

(setq point (fli:allocate-foreign-object :type 'HAPPY))

(fli:pointer-element-type point)