Unreferenced variable: Difference between revisions

Revision as of 21:14, 20 September 2009

Revision as of 08:42, 3 November 2009

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{{Unreferenced|date=February 2007}}

An '''unreferenced variable''' in the [[source code]] of a [[computer program]] is a [[Variable (programming)|variable]] that is defined but which is never used. This may result in a harmless waste of memory (unless the [[compiler]] used detects the situation and does not allocate storage for the variable, perhaps also issuing a warning). Some [[coding style|coding guideline]] documents consider an unreferenced variable to be a symptom of a potential coding fault.

{{orphan|date=November 2009}}

An '''unreferenced variable''' in the [[source code]] of a [[computer program]] is a [[Variable (programming)|variable]] that is defined but which is never used. This may result in a harmless waste of memory (unless the [[compiler]] used detects the situation and does not allocate storage for the variable, perhaps also issuing a warning). Some [[coding style|coding guideline]] documents consider an unreferenced variable to be a symptom of a potential coding fault.

== Examples ==

== Examples ==

[[C (programming language)|C]]:

<source lang="c">

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In this example, '''j''' is an unreferenced variable.

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[[Category:Variable (computer programming)]]

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