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[Troy Murray]

I'm struggling today with what seems like a very basic operation but it doesn't seem to work.  Perhaps someone would be kind enough to point out what I'm doing wrong as I can't seem to figure out this basic task.

<cfset x = 5>

<cfset x = x + 1 />  = works and results in 6

<cfset x = x - 1 />  = results in 0

I'm on Railo 3.3.1.000

--
Troy Murray

[Matt Quackenbush]

I cannot answer why that is not working as expected, but give this a try as a workaround:

<cfset x = 5 />
<cfset x++ />
<cfset x-- />

[Jean Moniatte]

Hello,

Your code works as expected for me with Railo 3.3.1.000 final:

<cfset x = 5>

<cfoutput><pre>#x#</pre></cfoutput>

<cfset x = x + 1 />

<cfoutput><pre>#x#</pre></cfoutput>

<cfset x = x - 1 />

<cfoutput><pre>#x#</pre></cfoutput>

Results in:

5

6

5

Is it part of a cfc or a regular template?

Thanks,

Jean

--

Jean Moniatte

UGAL

je...@ugal.com

www.ugal.com

[Troy Murray]

Here's the full code:

<cfoutput query="answerlists" group="id">

<tr>

<td>

#name#

</td>

<td>

<cfset str = "">

<cfoutput>

<cfset str = str & #value# & ",">

</cfoutput>

<cfset x = Len(str)>

<cfset x-- />

#Left(str, x)#

</td>

</tr>

</cfoutput>

I just restarted Tomcat/Railo and it still gives me the following error message:

"parameter 2 of the function left must be a positive number now [0]"

Ever been on a project so long your eyes start to cross even with the simple things?  Yeah, that's me right now.

--
Troy Murray

[Matt Quackenbush]

BTW, I too just checked on 3.3.1.000, and the results mirror Jean's.

[Troy Murray]

OK, thanks.

--
Troy Murray

[Matt Quackenbush]

Based upon that code and that error, I'm going to say that the result of <cfset x = Len(str)> is 1, meaning that str == ",". Then when you decrement x, it becomes 0.

Give this a whirl...

<cfoutput query="answerlists" group="id">
<tr>
    <td>
        #name#
    </td>
    <td>
    <cfset str = "">
    <cfoutput>
    <cfset str = str & #value# & ",">
    </cfoutput>
    <cfset x = Len(str)>
    <cfset x-- />

<cftry>
    #Left(str, x)#
    <cfcatch>
        <cfdump var="#str#" />
        <cfabort />
    </cfcatch>
</cftry>
    </td>
</tr>
</cfoutput>

[Troy Murray]

You were correct, thanks.

--
Troy Murray

[Troy Murray]

I'm sorry that sounded unappreciative to me.

Jean and Matt, thank you for taking a few minutes of time out of your busy day to help me with trying to resolve the problem I was having.  I realize that you didn't have to, but were willing to do that.  Thank you again.

--
Troy Murray

[Matt Quackenbush]

LOL. Dood, I have to say, I've been active on various forums/lists for over a decade, and that might just be the best "thank you" ever. To that, I say "no problem! always glad to help!". :-)


P.S. FWIW, I didn't think it was unappreciative at all. Cheers nonetheless! ;-)