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What does null mean?

The word null has different meanings. In law it means having no legal or binding force, invalid, in mathematics it means having or associated with the value of zero. In computer science, it is a special pointer value used to signify that a pointer intentionally does not point to an object.
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How to Create Endpoint Nulls.
1. Ascertain the length of your character string. 2. Ascertain the endpoint of your character string by subtracting one from the total length of the character string (Array elements start at 0, not 1) 3. Set the endpoint to the null character with  www.ehow.com
Who is null?
umm. that's actually reallyyy tuff. no one knows yet.  wiki.answers.com
How to Check Null in C.
1. The pointer to compare to is called. yourPointer. in the code snippet below. Ad. 2. A sample of a properly coded check for NULL in C is: if ( NULL = yourPointer ) {   /* do what you do when it's NULL */. else. {   /* do what you do when it is not  www.wikihow.com
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