Reference for Wiring version 0024+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.

Name

null

Examples
char str[] = "some characters";

if( str != null) {
  Serial.print(c);  // Prints 'some characters'
}
Description Special value used to signify the target is not a valid data element. In Wiring, you may run across the keyword null when trying to access data which is not there. It can also be used as NULL.
Syntax
null
NULL
Usage Application
Updated on November 01, 2009 12:48:37pm PST

Creative Commons License