CFLib.org – Common Function Library Project

CounterMinusMinus([intCounter])

Last updated April 19, 2002

author

Stephan Scheele

Version: 1 | Requires: CF5 | Library: DataManipulationLib

Description:
Simulate the c functionality of i--. Decrements a counter and returns the value of the counter before it was decremeted.

Return Values:
Returns the value of the variable BEFORE it has been decremented.

Example:

<cfset i=2>
<cfset aArray = arrayNew(1)>
<cfset aArray[counterMinusMinus("i")]="Hans">
<cfset aArray[counterMinusMinus("i")]="Otto">

<cfoutput>
#i#
</cfoutput>

Parameters:

Name Description Required
intCounter The name, not the value, of the variable to be decremented. No

Full UDF Source:

/**
 * Simulate the c functionality of i--.
 * 
 * @param intCounter 	 The name, not the value, of the variable to be decremented. 
 * @return Returns the value of the variable BEFORE it has been decremented. 
 * @author Stephan Scheele (stephan@stephan-t-scheele.de) 
 * @version 1, April 19, 2002 
 */
function counterMinusMinus(intCounter) {	
	var temp = evaluate(intCounter);
	"#intCounter#" = temp - 1;
	return temp;
}
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