Function

Summary

Tests whether an object is a pointer or not.

Package

fli

Signature

pointerp pointer => boolean

Arguments

pointer

An object that may be a FLI pointer.

Values

boolean

If pointer is a pointer then t is returned, otherwise nil is returned.

Description

The function pointerp tests whether pointer is a pointer or not, and returns t if it is.

Example

In the following example a pointer, point , is defined, and an object which is not a pointer is defined. Both are tested using pointerp .

(setq point (fli:allocate-foreign-object :type :int)) (setq not-point 7) (fli:pointerp point) (fli:pointerp not-point)

See also

null-pointer-p
pointer-address
pointer-eq