CFLib.org – Common Function Library Project

Description:
Simulate the c functionality of --i. Decrements a counter and returns the dencremented counter.

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

Example:

<cfset i=3>
<cfset aArray = arrayNew(1)>
<cfset aArray[minusMinusCounter("i")]="Hans">
<cfset aArray[minusMinusCounter("i")]="Otto">

<cfoutput>
#i#
</cfoutput>

Parameters:

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 after it has been decremented. 
 * @author Stephan Scheele (stephan@stephan-t-scheele.de) 
 * @version 1, April 17, 2002 
 */
function minusMinusCounter(intCounter){
    "#intCounter#" = evaluate(intCounter) - 1;
    return evaluate(intCounter);
}