This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English version of the page.

Note: This page has been translated by MathWorks. Click here to see
To view all translated materials including this page, select Country from the country navigator on the bottom of this page.

isNull

Class: lib.pointer
Package: lib

Points to NULL pointer

Syntax

tf = isNull(h)

Description

tf = isNull(h) returns true if h is a lib.pointer object.

Input Arguments

expand all

lib.pointer object, specified as a handle.

Examples

expand all

nullp = libpointer('doublePtr',[]);
isNull(nullp)
ans = logical
   1