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	== Definition ==		== Definition ==
	A function is a [[subroutine]] to which one or more of the following apply:<br />		A function is a [[subroutine]] to which one or more of the following apply:<br />
-	*it received [[parameters]]<br />	+	*it receives [[parameters]]<br />
-	*it acts on the [[parameters]]<br />	+	*it acts on the parameters<br />
	*it processes [[data]] located elsewhere<br />		*it processes [[data]] located elsewhere<br />
-	*it [[return|returns]] a value<br />	+	*it [[return]]s a [[value]]<br />
	A function does not create a new thread, and therefore the [[process]] which [[call|called]] the function waits until the function is completed before continuing executing its code.		A function does not create a new thread, and therefore the [[process]] which [[call|called]] the function waits until the function is completed before continuing executing its code.
-	As opposed to a [[process]], a function doesn't have a [[frame]]; statement. See [[process]] for more information.	+	As opposed to a process, a function doesn't have a [[frame]]; statement. See [[process]] for more information.
	For a list of functions, see [[:Category:functions|this list of functions]].		For a list of functions, see [[:Category:functions|this list of functions]].
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	</pre>		</pre>
	addInts(3,6); will return 9. One can see that the function does indeed:		addInts(3,6); will return 9. One can see that the function does indeed:
-	*receives [[parameters]]	+	*receives parameters
-	*acts on the [[parameters]]	+	*acts on the parameters
-	*[[return|returns]] a value	+	*returns a value
	[[Category:General]]		[[Category:General]]

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Revision as of 14:00, 29 April 2007

Definition

A function is a subroutine to which one or more of the following apply:

• it receives parameters
  
• it acts on the parameters
  
• it processes data located elsewhere
  
• it returns a value
  

A function does not create a new thread, and therefore the process which called the function waits until the function is completed before continuing executing its code.

As opposed to a process, a function doesn't have a frame; statement. See process for more information.

For a list of functions, see this list of functions.

Example

int addInts( int a , int b )
Begin
    return a+b;
End

addInts(3,6); will return 9. One can see that the function does indeed:

• receives parameters
• acts on the parameters
• returns a value